ASP.NET is a development framework for building web pages and web sites with HTML, CSS, JavaScript and server scripting. ASP.NET helps bring out dynamism with web pages, all in a very short turn around time. This is why it is known to be a unique as well as a very popular framework, especially when web apps or websites are built. The reason why this framework was developed by Microsoft is because the market admires its innovative features. So, it has gained importance and is special as well. Consider it as a tool which can work wonders for developers as well as programmers, since it allows beautiful along with very dynamic websites to be born, using C# or VB as languages.

.net development services In the days gone by, web page contents weren’t spared of being static. With time it was understood that changes were important and have to be made for the websites to survive. New content had to be brought in. Moreover, there were manual modifications to be made to keep the site on the run as well as updated. This then brought about the awareness of having sites that would be auto updated as well as dynamic. Therefore, ASP by Microsoft was brought in, and hence the name ACTIVE SERVER PAGES came about. It thus helped in more ways than one, especially in meeting such needs.

Benefits

1. You could own a small medium enterprise online or managing a huge business across many networks. There are many beneficial features which can help you to reach your goals.
2. Irrespective of the size or volume, the language would work on every performance problem. It is developed in such a way that apps now can be worked on from any corner of the globe with utmost efficiency.
3. Using this language, one doesn’t have to engage in long coding to make large apps. Most popular sites including ecommerce sites use it without any difficulty. This is because there is more power along with greater flexibility. In fact, the web pages can use the html code as well as source code for enhanced dynamism.
4. In this day and age, using Asp.net for web apps is the sure shot way of making it big, say experts. The language is independent, with more than a quarter .net languages for users as well as developers to thrive on and to work with for their web apps.
5. Infinite loops, memory leads or any activity deemed illegal would be instantly checked on. restarts happen on the spot, wherein all illegal activity along with its source would be tarnished.
6. Before anything is sent to the main browser, the code would run on the esteemed server. This then ensures that there is constant monitoring of the pages, its main components as well as all the important applications in it.
7. Cheap framework, and those looking for cost effective solutions would gain widely from it.

If you take a look online, you would find a large number of offshore companies across the world, willing and waiting to help your venture with all Asp.net needs. Most companies prefer their services outsourced, because of reliability as well as efficiency. Outsourced teams are available with plenty of expertise and experience to help with Asp.net application development and maintenance too.

The face of Asp.net app development is known to be an area which is fast emerging across the IT industry, say experts. Even the non IT companies look at it for safety and security in business across the online world. Verticals therefore are changing, and it is very rapid. Right from education to retail, manufacturing to finance, banking or investment, even online ecommerce sites too, everyone is using Asp.net.
Asp.net helps with continuity, smooth functioning and also gels well with a wide range of systems to meet every edge and demands of the business world these days. With super high web apps on the go, clients as well as customers alike are deriving immense satisfaction. Companies can now showcase their products and services like never before, there by bringing in more money.

Search engines like human-readable URLs with keywords in it, and hesitate to respect messy URLs with a lot of query-string parameters. So, to make our ASP.NET database-driven website SEO-friendly we have to get rid of our complex URLs.

SEO or Search Engine Optimization is the process of affecting the visibility of a website or a web page in a search engine's "natural" or un-paid ("organic") search results. In general, the earlier (or higher ranked on the search results page), and more frequently a site appears in the search results list, the more visitors it will receive from the search engine's users. SEO may target different kinds of search, including image search, local search, video search, academic search, news search and industry-specific vertical search engines.

Solution 1: Fake pages and "Server.Transfer".
As you can see the two URLs above point to the same page. Basically it is the same page and it works like this: the page mailjet-newsletter-software.aspx contains no code at all and performs a Server.Transfer (aka server-side redirect) to product.aspx like this:
Server.Transfer("product.aspx?ProductID=18");
That's it. We have one "product.aspx" page which expects a "ProductID" parameter and a lot of "fake pages" with SEO-friendly names like firstproduct.aspx, secondproduct.aspx etc., which simply perform a Server.Transfer to the "product.aspx" with the right ProductID.

Simple, isn't it?
But this solution requires a lot of hard-coding - we will have to create all these fake pages and add a Server.Transfer command. So let's go a little further: we will create one base class for all our "fake pages" and add a record to the "tblProducts" table in the database:

Now we have to create our fake pages, inherit them all from the ProductPage class and voi la - that's it! We can also optionally remove all the HTML-code from the aspx-files, leaving the "Page" directive only.

Solution 2: Virtual Pages.
This method is pretty similar, except that we don't need to create any pages at all. Instead, we will add an HttpModule, which intercepts HTTP requests, and the user requests a non-existent page, performs a Rewrite operation. First we will create our HttpModule:

Now we have to register our HttpModule in the web.config:

<httpModules>
<add type="URLRewrite.ProductPageModule, URLRewrite" name="ProductPageModule" />
<httpModules>

NumericUpDown is an ASP.NET AJAX extender that can be attached to an ASP.NET TextBox control to add "up" and "down" buttons that increment and decrement the value in the TextBox. The increment and decrement can be simple +1/-1 arithmetic, they can cycle through a provided list of values (like the months of the year), or they can call a Web Service to determine the next value. Page authors can also provide custom images to be used instead of the default up/down button graphics. In this article, I will show you step by step procedure, how to use a Up Down Extender

In ASP.NET using Visual Studio 2005 or Visual Studio 2008.

Step 1 : Open Visual Studio.

• Go to File->New->WebSite
• Select ASP.NET WebSite

Step 2 :

Under Visual Studio Installed Template-> Choose ASP.NET WEB SITE -> Choose File System from the location combo box -> Set the path by the browse button - > Choose the language from the Language ComboBox (Visual C# , Visual Basic , J #)

• Choose Visual C#

Step 3 :

Click on the OK Button.
This is the source code window :

Step 4 :
See here is a tab named Design in the bottom of this page. Click on this tab and you will see a blank web page where you can drag any control from the toolbox (which is in the left side of this window).

Step 5 :
Now drag some controls under the AJAX Extensions. First control you are going to drag and drop on the page is - Script Manager.

• first add a tag on the top of your source code window:
  <%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %>
• Under the form tag,NumericUpDownExtender control
  

Step 6:

Now run the application by pressing ctrl +  F5.

Step 7 :

When you run the Up Down Extender will seem like this...

1. BotDetect CAPTCHA ASP.NET Configuration

BotDetect Captcha properties can be set in several different ways, depending on the type of value you are customizing.

2. BotDetect CAPTCHA Web.Config Configuration Section

BotDetect configuration options which apply to all Captcha instances within a particular ASP.NET application can be specified in the web.config file. This approach can be seen in the Captcha customization code sample coming with the BotDetect installation.

This configuration section first needs to be registered at the top of the web.config file:

<configuration>

  <configSections>

    <!-- Register the BotDetect configuration section -->

    <section name="botDetect" requirePermission="false"

      type="BotDetect.Configuration.BotDetectConfigurationSection,

        BotDetect" />

  </configSections>

You can then create the <botDetect> section just below the closing </configSections> element, and (for example) disable all audio Captcha sounds in the application by specifying:

<botDetect>

  <captchaSound enabled="false" />

</botDetect>

3. BotDetect CAPTCHA .aspx / Visual Studio Designer Instance Settings

When adding the BotDetect:Captcha control to the .aspx file defining your form (either by using the Visual Studio Designer or editing the source directly), you can specify various attributes in the element declaration. For example, the simplest way to specify Captcha image size is:

<BotDetect:Captcha ID="SampleCaptcha" runat="server" ImageSize="200, 50" />

However, it's not recommended to use this method to set all Captcha instance properties. Page source declarations are processed when the page is loaded, and since they have to be applied to Captcha images and sounds (which come as separate Http requests), they have to be saved in ASP.NET Session state. It's better not to take up Session space if it's not necessary.

4. BotDetect CAPTCHA Code-Behind Instance Settings

It's also possible to specify various Captcha object settings in your page code-behind code. For example, code type and length can be set in the Page_PreRender override:

protected void Page_PreRender(object sender, EventArgs e)

{

  // initial page setup

  if (!IsPostBack)

  {

    // Captcha code properties

    SampleCaptcha.CodeLength = 4;

    SampleCaptcha.CodeType = BotDetect.CodeType.Numeric;

}

The same caveat applies to this method as with .aspx settings: this code is executed when the form is loaded, but since Captcha images and sounds are loaded in separate Http requests (which don't result in this code being executed), all values set this way have to be saved in ASP.NET Session state. Since different visitors will use separate Sessions, the amount of state used is multiplied by the number of active visitors / Sessions, and it's better not to use a lot of it.

5. BotDetect CAPTCHA Event Handler Property Setting and Randomization

This is the recommended approach to Captcha instance property setting. It's the most complex method, since it requires setting up an event handler. But since this handler is going to be executed for all Captcha requests (including separate Captcha image and sound Http requests), there is no need to persist the values in ASP.NET Session state.

Randomizing Captcha properties significantly improves Captcha security, and it should always be performed in this event handler instead of Page_Load or Page_PreRender, because the Captcha control event is also fired for direct Captcha image and sound requests (which skip the page events since the page is never loaded) – for example when clicking the Captcha reload button repeatedly.

You can see this approach to BotDetect Captcha property setting implemented in the Captcha randomization code sample coming with the BotDetect installation.

First, a InitializedCaptchaControl event handler needs to be registered in the Page_Init override:

protected void Page_Init(object sender, EventArgs e)

{

  SampleCaptcha.InitializedCaptchaControl +=

    new EventHandler<InitializedCaptchaControlEventArgs>(

      SampleCaptcha_InitializedCaptchaControl);

}

Then, randomization rules can be declared in the event handler:

void SampleCaptcha_InitializedCaptchaControl(object sender,

  InitializedCaptchaControlEventArgs e)

{

  if (e.CaptchaId != SampleCaptcha.CaptchaId)

  {

    return;

  }

  CaptchaControl captcha = sender as CaptchaControl;

  // randomize code generation properties

  captcha.CodeStyle = CaptchaRandomization.GetRandomCodeStyle();

  captcha.CodeLength = CaptchaRandomization.GetRandomCodeLength(4, 5);

  captcha.ImageStyle = CaptchaRandomization.GetRandomImageStyle();

  captcha.SoundStyle = CaptchaRandomization.GetRandomSoundStyle();

}

The CaptchaRandomization helper allows easy randomization of Captcha parameters.

ASPHostPortal.com officially launches ASP.NET MVC 5.1  hosting at affordable prices. Instant Setup, Fast and Friendly Support!

ASPHostPortal.com, a leading innovator in Windows Hosting, announces the launch of ASP.NET MVC 5.1 Hosting. The ASP.NET MVC 5.1 Framework is the latest evolution of Microsoft’s ASP.NET web platform. It provides a high-productivity programming model that promotes cleaner code architecture, test-driven development, and powerful extensibility, combined with all the benefits of ASP.NET.

ASP.NET MVC 5.1 contains a number of advances over previous versions, including the ability to define routes using C# attributes and the ability to override filters,Enum support in Views, Support for current Context in Unobtrusive Ajax, Filter Overrides and etc. The user experience of building MVC applications has also been substantially improved.

The company believes in providing top-notch service at affordable price. They offer ASP.NET MVC 5.1 hosting with the following features such as Unlimited Domain, Unlimited Subdomain, 5 GB Disk Space, 2 SQL Database and Unlimited Email Account.
 
“Our customers have been asking us about MVC 5.1 and we are happy to deliver a hosting platform that supports all the latest in the Microsoft Web Stack.” said said Dean Thomas, Manager at ASPHostPortal.com.  "And it proves that we remain at the forefront in Microsoft technology".

Where to look for the best ASP.NET MVC 5.1 hosting service? How to know more about the different types of hosting services? Read more about it on http://www.asphostportal.com.

About ASPHostPortal.com:

ASPHostPortal.com is a hosting company that best support in Windows and ASP.NET-based hosting. Services include shared hosting, reseller hosting, and sharepoint hosting, with specialty in ASP.NET, SQL Server, and architecting highly scalable solutions. As a leading small to mid-sized business web hosting provider, ASPHostPortal.com strive to offer the most technologically advanced hosting solutions available to all customers across the world. Security, reliability, and performance are at the core of hosting operations to ensure each site and/or application hosted is highly secured and performs at optimum level.

Here is the simple step to create a sign up/registration page in ASP.NET. Lets check this out :
1. Open the Microsoft Visual Studio
2. Select one New Asp.Net Web application
3. Open the Design Default.aspx page
4. Drag and Drop one DropDown list and button from the Tool box.
5. Add one new item( i.e., New Registration Page) for the Drop down list
6. Procedure for adding items : Right click on the DropDown List and select properties and select items and add NewRegistration in Text Field.
7. Change the properties of the Dropdown list
a.Kept AutopostBack = True;
b.select the SelectedIndexChanged Event for that..
8. Open the code page that is Default.aspx.cs and and create a method in SelectedIndexChanged event of dropdownlist

using System; 
using System.Collections; 
using System.Configuration; 
using System.Data; 
using System.Linq; 
using System.Web; 
using System.Web.Security; 
using System.Web.UI; 
using System.Web.UI.HtmlControls; 
using System.Web.UI.WebControls; 
using System.Web.UI.WebControls.WebParts; 
using System.Xml.Linq; 
using System.Data.SqlClient; 
 
public partial class Dynamic_controls : System.Web.UI.Page 
{ 
    SqlConnection con; 
    SqlCommand com; 
  protected void Page_Load(object sender, EventArgs e) 
    {        
        
    } 
protected void ddlist_SelectedIndexChanged(object sender, EventArgs e) 
    { 
        Createnewaccount();  
    } 

9. Create new methods for Different controls by using the main method(i.e., Createnewaccount)

private void Createnewaccount ()
         {
             CreateDynamicTextBoxes ();
             CreateDynamicTextBoxes1 ();
             CreateDynamicCheckBoxes ();
             CreateDynamicCheckBoxes1 ();
             CreateDynamicRadioButtons1 ();
             BindDropDownLists ();
         }

10. Create all types of dynamic controls

 protected void CreateDynamicTextBoxes ( )
        {
           
            int c = 1 ;
            TextBox [ ] textBoxArr = new TextBox [ c ] ;/ / array of textboxes
            for (int i = 0 ; i < c ; i + + )
            {
                 
                textBoxArr [ i ] = new TextBox ( ) ;
                textBoxArr [ i ] . ID = " txtBox " + i.ToString ( ) ;
                PH_Name.Controls.Add ( textBoxArr [ i ] ) ;
                RequiredFieldValidator reqfldVal = new RequiredFieldValidator ( ) ;
                reqfldVal.ID = " RequiredValidator " + i ;
                reqfldVal.ControlToValidate = " txtBox " + i ;
                reqfldVal.ErrorMessage = " Not Empty " ;
                reqfldVal.SetFocusOnError = true ;
                PH_Name.Controls.Add ( reqfldVal ) ;
            }
        }
        protected void CreateDynamicTextBoxes1 ( )
        {
            int c = 1 ;
            TextBox [ ] textBoxArr1 = new TextBox [ c ] ;/ / array of textboxes
            for (int i = 0 ; i < c ; i + + )
            {
      
                textBoxArr1 [ i ] = new TextBox ( ) ;
                textBoxArr1 [ i ] . ID = " txtBox1 " + i.ToString ( ) ;
                PH_pwd.Controls.Add ( textBoxArr1 [ i ] ) ;
                RequiredFieldValidator reqfldVal1 = new RequiredFieldValidator ( ) ;
                reqfldVal1.ID = " RequiredValidator1 " + i ;
                reqfldVal1.ControlToValidate = " txtBox1 " + i ;
                reqfldVal1.ErrorMessage = " Not Empty " ;
                reqfldVal1.SetFocusOnError = true ;
                PH_pwd.Controls.Add ( reqfldVal1 ) ;
                 
            }
        }
        private void BindDropDownLists ( )
        {
            SqlDataSource sqlDS = new SqlDataSource ( ) ;
            sqlDS.ConnectionString = ConfigurationManager.ConnectionStrings [ " SAMPLE_2 " ] . ToString ( ) ;
            sqlDS.SelectCommand = " Select CountryID , COUNTRY_NAME from countrynames " ;
            PH_country.Controls.Add ( sqlDS ) ;
            DropDownList ddl = new DropDownList ( ) ;
            ddl.ID = " ddlrank " ;
            ddl.DataSource = sqlDS ;
            ddl.DataTextField = " COUNTRY_NAME " ;
            ddl.DataValueField = " CountryID " ;
            PH_country.Controls.Add ( ddI ) ;
            foreach ( Control ctl in PH_country.Controls )
            {
                if ( ctl is DropDownList )
                {
                    ( ctl as DropDownList ) . DataBind ( ) ;
                }
            }
        }
        protected void CreateDynamicCheckBoxes ( )
        {
                   
                CheckBox chk ;
                chk = new CheckBox ( ) ;
                chk.ID = " chkhobbies " ;
                chk.Text = " savings " ;
                chk.AutoPostBack = false ;
                PH_trans.Controls.Add ( chk ) ;
             
        }
        protected void CreateDynamicCheckBoxes1 ( )
        {
           
            int c = 1 ;
            CheckBox [ ] chk = new CheckBox [ c ] ;
            for (int i = 0 ; i < c ; i + + )
            {
                chk [ i ] = new CheckBox ( ) ;
                chk [ i ] . ID = " chkhobbies1 " + i.ToString ( ) ;
                chk [ i ] . Text = " Current" ;
                chk [ i ] . AutoPostBack = false ;
                PH_trans.Controls.Add ( chk [ i ] ) ;
            }
        }
        protected void CreateDynamicRadioButtons ( )
        {
                Male = new RadioButton RadioButton ( ) ;
                Female = new RadioButton RadioButton ( ) ;
                male = new RadioButton ( ) ;
                female = new RadioButton ( ) ;
                male.Text = " Male " ;
                female.Text = " Female " ;
                male.Checked = false ;
                female.Checked = false ;
                male.GroupName = " unknown " ;
                female.GroupName = " unknown " ;
                male.ID = " malegender " ;
                female.ID = " unknown " ;
                male.AutoPostBack = false ;
                female.AutoPostBack = false ;
                PH_gender.Controls.Add ( male ) ;
                PH_gender.Controls.Add (female ) ;
        }
        protected void CreateDynamicRadioButtons1 ( )
        {
            RadioButtonList radio = new RadioButtonList ( ) ;
            radio.ID = " rblRow " ;
            radio.Items.Add ( new ListItem ( " Male " ) ) ;
            radio.Items.Add ( new ListItem ( " Female " ) ) ;
            PH_gender.Controls.Add ( radio ) ;
             
        }
        protected void CreateDynamicPanel ( )
        {
           
            int c = 1 ;
            TextPanel panel = new Panel ( ) ;
            for (int i = 0 ; i < c ; i + + )
            {
                TextPanel.ID = " txtPanel " + i.ToString ( ) ;
                PlaceHolder1.Controls.Add ( TextPanel ) ;
            }
        }

11. Add the following code to store the data in database

protected void btn_submit_Click ( object sender , EventArgs e )
        {
            for (int i = 0 ; i < 1 ; i + + )
            {
                 
                txtvalue string = " txtBox " + i.ToString ( ) ;
                txtvalue1 string = " txtBox1 " + i.ToString ( ) ;
                ddlvalue string = " ddlrank " ;
                chkvalue string = " chkhobbies " ;
                chkvalue1 string = " chkhobbies1 " + i.ToString ( ) ;
                rbvalue string = " rblRow " ;
                 
                TextBox txt = ( TextBox ) PlaceHolder1.FindControl ( txtvalue ) ;
                TextBox txt1 = ( TextBox ) PlaceHolder1.FindControl ( txtvalue1 ) ;
                DropDownList Dddl = ( DropDownList ) PlaceHolder1.FindControl ( ddlvalue ) ;
                CheckBox Dchk = ( CheckBox ) PlaceHolder1.FindControl ( chkvalue ) ;
                CheckBox Dchk1 = ( CheckBox ) PlaceHolder1.FindControl ( chkvalue1 ) ;
                RadioButtonList Drd = ( RadioButtonList ) PlaceHolder1.FindControl ( rbvalue ) ;
                if ( txt ! = null )
                {
                    try
                    {
                        string strText = txt.Text ;
                        strText1 string = txt1.Text ;
                        strddl string = Dddl.SelectedItem.Text ;
                        strchk string = Dchk.Text ;
                        strchk1 string = Dchk1.Text ;
                        strrdb string = Drd.Text ;
                        / / Store value in database textbox Cell
                        con = new SqlConnection ( ConfigurationManager.ConnectionStrings [ " SAMPLE_2 " ] . ToString ( ) ) ;
                        con.Open ( ) ;
                        com = new SqlCommand ( " insert into Dynamic_Form ( UserName , LastName , DropdownlistValue , Chksavings , Chkcurrent , Radiovalue ) values ​​( ' " + strText + " ' , ' " + strText1 + " ' , ' " + strddl + " ' , ' " strchk + + " ' , ' " + strchk1 + " ' , ' " + strrdb + " ' ) " , con ) ;
                        com.ExecuteNonQuery ( ) ;
                        con.Close ( ) ;
                        lbl_error.Text = " Account Successfully Created " ;
                         
                    }
                    catch ( Exception ex )
                    {
                        throw ex ;
                        / / lbl_error.Text = " There is a problem while creating Account " ;
                         
                    }
                }
            }
        }

Now, run your program and see the result :

ASP.NET MVC 4 web application allows users to log in from an external provider, such as Facebook, Twitter, Microsoft or Google and then integrate into your web application. Some OAuth/OpenId providers like Facebook, Google allow to access email. This article explains how to save the email in your database.

Before implementing, first lets consider following points:
1. User name is different from Email.
2. Email might be different for different providers.
3. Email is optional(some external provider like twitter doesn’t allow to access email).

Getting Started:
1. Create a new ASP.NET MVC 4 --> Internet Application Project
2. Open App_Start --> AuthConfig.cs, uncomment the external services which you want to use and pass proper parameters. In this article, we will use Facebook,Twitter and Google providers.

OAuthWebSecurity.RegisterTwitterClient(
        consumerKey: "xxxx",
        consumerSecret: "xxxxxxxx");
    OAuthWebSecurity.RegisterFacebookClient(
        appId: "yyyy",
        appSecret: "yyyyyyyy");
    OAuthWebSecurity.RegisterGoogleClient();

3. In Account Model, add Email property in RegisterExternalLoginModel class:

public class RegisterExternalLoginModel
   {
       [Required]
       [Display(Name = "User name")]
       public string UserName { get; set; }
       public string ExternalLoginData { get; set; }
       public string Email { get; set; }
   }

4. To add Email field in OAuthMembership table, add following class:

[Table("webpages_OAuthMembership")]
   public class OAuthMembership
   {
       [Key, Column(Order = 0), StringLength(30)]
       public string Provider { get; set; }
       [Key, Column(Order = 1), StringLength(100)]
       public string ProviderUserId { get; set; }
       public int UserId { get; set; }
       [StringLength(100)]
       public string Email { get; set; }
   }

5. add OAuthMembership in Userscontext

public class UsersContext : DbContext
    {
        public UsersContext()
            : base("DefaultConnection")
        {
        }
        public DbSet<UserProfile> UserProfiles { get; set; }
        public DbSet<OAuthMembership> OAuthMemberships { get; set; }
    }

It will create the required structure in database when you run the application and open register page first time.

Controller Changes:
In AccountController, To set email from the external provider, replace the following lines in ExternalLoginCallback method :

// User is new, ask for their desired membership name
string loginData = OAuthWebSecurity.SerializeProviderUserId(result.Provider, result.ProviderUserId);
ViewBag.ProviderDisplayName = OAuthWebSecurity.GetOAuthClientData(result.Provider).DisplayName;ViewBag.ReturnUrl = returnUrl;
return View("ExternalLoginConfirmation", new RegisterExternalLoginModel { UserName = result.UserName, ExternalLoginData = loginData });

with the following lines:

// User is new, ask for their desired membership name
               string loginData = OAuthWebSecurity.SerializeProviderUserId(result.Provider, result.ProviderUserId);
               ViewBag.ProviderDisplayName = OAuthWebSecurity.GetOAuthClientData(result.Provider).DisplayName;
               ViewBag.ReturnUrl = returnUrl;
               var model = new RegisterExternalLoginModel { UserName = result.UserName, ExternalLoginData = loginData };
               switch (result.Provider) {
                   case "facebook":
                   case "google":
                       {
                           model.Email = result.UserName;
                           model.UserName = "";
                           break;
                       }
                   case "twitter":
                       {
                           model.Email = "";
                           model.UserName = result.UserName;
                           break;
                       }
                   default:
                       break;
               }
               return View("ExternalLoginConfirmation", model);

Facebook and Google provide email as user name, so email is assigned for these providers.

In ExternalLoginConfirmation view, add following Email in form:

@Html.HiddenFor(m => m.Email)

It will post Email also when form is submitted. In ExternalLoginConfirmation method, To save email for new user,replace the following lines:

// Insert name into the profile table
            db.UserProfiles.Add(new UserProfile { UserName = model.UserName });
            db.SaveChanges();
            OAuthWebSecurity.CreateOrUpdateAccount(provider, providerUserId, model.UserName);
            OAuthWebSecurity.Login(provider, providerUserId, createPersistentCookie: false);
            return RedirectToLocal(returnUrl);

with these lines:

// Insert name into the profile table
                       user = new UserProfile { UserName = model.UserName };
                       db.UserProfiles.Add(user);
                       db.SaveChanges();
                       OAuthWebSecurity.CreateOrUpdateAccount(provider, providerUserId, model.UserName);                                           
                       if (!String.IsNullOrEmpty(model.Email)) {
                           var oauthItem = db.OAuthMemberships.FirstOrDefault(x => x.Provider == provider && x.ProviderUserId == providerUserId && x.UserId == user.UserId);
                           if (oauthItem != null) {
                               oauthItem.Email = model.Email;
                               db.SaveChanges();
                           }
                       }
                       OAuthWebSecurity.Login(provider, providerUserId, createPersistentCookie: false);
                       return RedirectToLocal(returnUrl);

This will save email in database for new user. Now if same user wants to add other external provider then in ExternalLoginCallback method, replace following line

OAuthWebSecurity.CreateOrUpdateAccount(result.Provider, result.ProviderUserId, User.Identity.Name);

with following lines:

OAuthWebSecurity.CreateOrUpdateAccount(result.Provider, result.ProviderUserId, User.Identity.Name);
               if (result.Provider == "facebook" || result.Provider == "google")
               {
                   using (UsersContext db = new UsersContext())
                   {
                       UserProfile user = db.UserProfiles.FirstOrDefault(u => u.UserName.ToLower() == User.Identity.Name);                     
                       if (user != null)
                       {                         
                               var oauthItem = db.OAuthMemberships.FirstOrDefault(x => x.Provider == result.Provider && x.ProviderUserId == result.ProviderUserId && x.UserId == user.UserId);
                               if (oauthItem != null)
                               {
                                   oauthItem.Email = result.UserName;
                                   db.SaveChanges();
                               }                         
                       }
                   }
               }

That's the tutorial How To Save Email from External Login in ASP.NET MVC 4.0 with SimpleMembership. If you're looking for best Windows ASP.NET hosting, ASP.NET MVC 4.0 hosting, cloud hosting, and SharePoint hosting, please feel free to visit http://ASPHostPortal.com. Come to the website to know more details.

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Entity Framework is actively developed by the Entity Framework team which is assigned to the Microsoft Open Tech Hub and in collaboration with a community of open source developers. Together we are dedicated to creating the best possible data access experience for .NET developers.
The Entity Framework version 6 Release Candidate is now available to developers for immediate download. The open source object-relational mapper is designed to enable .NET developers to work with relational data using domain-specific objects. Entity Framework allows programmers to create a model by writing code or using boxes and lines in the EF Designer. Both of these approaches can be used to target an existing database or create a new database.

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Cookies is a small piece of information stored on the client machine. This file is located on client machines "C:\Document and Settings\Currently_Login user\Cookie" path.  Its is used to store user preference information like Username, Password,City and PhoneNo etc on client machines that you created in ASP.NET.
Cookies could be stolen by hackers to gain access to a victim's web account. Even cookies are not software and they cannot be programmed like normal executable applications. Cookies cannot carry viruses and cannot install malware on the host computer. However, they can be used by spyware to track user's browsing activities.

How to create a cookie?
There are many ways to create cookies, I am going to outline some of them below:
Example 1:
HttpCookie userInfo = new HttpCookie("userInfo");
userInfo["UserName"] = "Annathurai";
userInfo["UserColor"] = "Black";
userInfo.Expires.Add(new TimeSpan(0, 1, 0));
Response.Cookies.Add(userInfo);

Example 2:
Response.Cookies["userName"].Value = "Annathurai";
Response.Cookies["userColor"].Value = "Black";

How to delete cookie?
Now look at the code given below which will delete cookies.
Example 1:
string User_Name = string.Empty;
string User_Color = string.Empty;
User_Name = Request.Cookies["userName"].Value;
User_Color = Request.Cookies["userColor"].Value;

Example 2:
string User_name = string.Empty;
string User_color = string.Empty;
HttpCookie reqCookies = Request.Cookies["userInfo"];
if (reqCookies != null)
{
User_name = reqCookies["UserName"].ToString();
User_color = reqCookies["UserColor"].ToString();
}

When we make request from client to web server, the web server process the request and give the lot of information with big pockets  which will have Header information, Metadata, cookies etc., Then repose object can do all the things with browser.

Cookie's common property:

• Domain => Which is used to associate cookies to domain.
• Secure  => We can enable secure cookie to set true(HTTPs).
• Value    => We can manipulate individual cookie.
• Values  => We can manipulate cookies with key/value pair.
• Expires => Which is used to set expire date for the cookies.

Advantages of Cookie:

• Its clear text so user can able to read it.
• We can store user preference information on the client machine.
• Its easy way to maintain.
• Fast accessing.
• Disadvantages of Cookie
• If user clear cookie information we can't get it back.
• No security.
• Each request will have cookie information with page.

How to clear the cookie information?
we can clear cookie information from client machine on cookie folder

To set expires to cookie object
userInfo.Expires = DateTime.Now.AddHours(1);
It will clear the cookie with one hour duration.


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