TextBoxOnTextChanged.aspx
<%@ 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 TextBox1_TextChanged(object sender, System.EventArgs e)
{
TextBox2.Text = TextBox1.Text;
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>How to use OnTextChanged event in TextBox</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h2 style="color:Red">TextBox Example: OnTextChanged</h2>
<asp:Label
ID="Label1"
runat="server"
Text="Email"
>
</asp:Label>
<asp:TextBox
ID="TextBox1"
runat="server"
AutoPostBack="true"
OnTextChanged="TextBox1_TextChanged"
>
</asp:TextBox>
<br /><br />
<asp:Label
ID="Label2"
runat="server"
Text="Confirm Email"
>
</asp:Label>
<asp:TextBox
ID="TextBox2"
runat="server"
BackColor="LightGoldenrodYellow"
ForeColor="Crimson"
>
</asp:TextBox>
</div>
</form>
</body>
</html>
Click Here!
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