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ASP.Net » Development » Code Behind 
Code behind with namespace

<%@ Page language="vb" src="Codebehind.vb" 
   Inherits="aspnetian.CodeBehind" %>
<html>
<head></head>
<body>
   <form runat="server">
      <h1>Code-behind demonstration</h1>
      <p>
         <asp:label id="message" runat="server">
         Enter your name to sign in:
         </asp:label>         
      </p>
      <p>
         <table id="SignInTable" cellpadding="5"
            cellspacing="1" bgcolor="Silver" runat="server">
            <tr>
         <td align="right">Name:</td>
               <td align="left">
                  <asp:textbox id="SignInBox" width="200" runat="server"/>
               </td>
            </tr>
            <tr>
               <td colspan="2" align="middle">
                  <asp:button id="SignInButton" runat="server" text="Sign in"/>
               </td>
            </tr>
         </table>
      </p>
   </form>
</body>
</html>

<%--

Imports System
Imports System.Web
Imports System.Web.UI
Imports System.Web.UI.WebControls
Imports System.Web.UI.HtmlControls
Namespace aspnetian

Public Class CodeBehind : Inherits System.Web.UI.Page
   Protected Message As Label 
   Protected SignInTable As HtmlTable 
   Protected WithEvents SignInButton As Button 
   Protected SignInBox As TextBox

   Protected Sub Page_Load(sender As Object, e As EventArgs)
      If Page.IsPostBack Then
         Message.Text = "Time is: " & DateTime.Now() "<br>" & Message.Text
      End If
   End Sub

   Protected Sub SignInButton_Click(obj As Object, e As EventArgs Handles SignInButton.Click
      Message.Text = "Congratulations, " & SignInBox.Text & _
         "!!! You have successfully signed in."
      SignInTable.Visible = false
   End Sub

End Class
End Namespace
--%>
           
       
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1. Define and use namespace in code behind
2. Call function in code behind
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4. Code Behind In action
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