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Thursday, May 22, 2008

Thursday, May 22, 2008 10:29:08 AM (Eastern Standard Time, UTC-05:00) ( ASP.NET | User Controls )

This is a simple login user control used to demonstrate how to expose (get and set) the properties associated with the control. Here is a working demo.

** LoginUserControl.ascx **

<script language="VB" runat="server">

  Public BackColor As String = "white"

  Public Property Login As String
    Get
      Return txtLogin.Text
    End Get
    Set
      txtLogin.Text = Value
    End Set
  End Property

  Public Property Password As String
    Get
      Return txtPassword.Text
    End Get
    Set
      txtPassword.Text = Value
    End Set
  End Property
  
  Public Property Status As String
  Get
      Return lblStatus.Text
  End Get
  Set
      lblStatus.Text = Value
  End Set
  End Property

</script>

<table style="background-color:<%=BackColor%>;font: 10pt verdana;border-width:1;border-style:solid;border-color:black;" cellspacing=15>
  <tr>
    <td><b>Login: </b></td>
    <td><ASP:TextBox id="txtLogin" runat="server"/></td>
  </tr>
  <tr>
    <td><b>Password: </b></td>
    <td><ASP:TextBox id="txtPassword" TextMode="Password" runat="server"/></td>
  </tr>
  <tr>
    <td></td>
    <td><ASP:Button Text="Submit" runat="server"/></td>
  </tr>
  <tr>
    <td></td>
    <td><asp:Label id="lblStatus" runat="server"/></td>
  </tr>  
</table>

** LoginControl.aspx **

<%@ Register TagPrefix="MyUserControl" TagName="Login" Src="LoginUserControl.ascx" %>

<html>

<script language="VB" runat="server">
    Sub Page_Load(ByVal Sender As Object, ByVal E As EventArgs)
        If (Page.IsPostBack) Then
            MyLabel.Text &= "The UserId is " & MyLogin.Login & "<br>"
            MyLabel.Text &= "The Password is " & MyLogin.Password & "<br>"
            MyLogin.Status = "Hello world"
        End If
    End Sub
</script>

<body style="font: 10pt verdana">
  <h3>A Login User Control</h3>

  <form runat="server">
    <MyUserControl:Login id="MyLogin" UserId="John Doe" Password="Secret" BackColor="beige" runat="server"/>
  </form>
  <asp:Label id="MyLabel" runat="server"/>
</body>
</html>

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