Label control and their properties in ASP.NET, AssociatedControlID example

January 26, 2014 0 Comments

Introduction

The label control is used to display the text that the user control edit. The Label control exists within the System.Web.UI.WebControls namespace. Here is the class hierarchy of the Label class:
System.Object
    System.Web.UI.Control
       System.Web.UI. WebControls.WebControl
           System.Web.UI.WebControls.Label

Public Properties of the Label Class

AssociatedControlID : Obtains or sets the identifier for a server control the Label control is associated with.
Text : Obtains or sets the text content of the Label control.

Lets take an simple example

<%@ Page Language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">

    protected void Button1_Click(object sender, EventArgs e)
    {
        Label2.Text = "Associated Control Id Example";
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
     <div>
        <asp:Label ID="Label1" runat="server" Text="<u>U</u>serName" AccessKey="U" 
             AssociatedControlID="TextBox1"></asp:Label>
    &nbsp;<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
        <br />
        <br />
        <asp:Button ID="Button1" runat="server" Text="Check Data" 
             onclick="Button1_Click" />
        <br />
        <asp:Label ID="Label2" runat="server"></asp:Label>
    </div>
    </form>
</body>
</html>

Code Generating the following Output

Label control and their properties in ASP.NET, AssociatedControlID example

Jacob Lefore

Some say he’s half man half fish, others say he’s more of a seventy/thirty split. Either way he’s a fishy bastard. Google

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