setting value on ClinetClick and reading changed value on OnClik[Server Side]

K V Sekhar

Hi all, I have a TextBox and Button. The Button have two events 'OnClentClick'(javascript) and 'OnClick'(server side). OnClientClick of button i could able to set the value to textbox and i could see the value in TextBox. But when OnClick of Button i could not able to read the changed value of TextBox. Its giving value which i assigned at design time. But i could see the new value in textbox. Why? whats the reason. How to read that changed value on OnClick(Server Side]. Please suggest me how to do that. Thanks in advance.

Abhijit Jana

Can you please show us the code ?

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K V Sekhar

Here is the sample code.

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>GridView Export</title>
<script type="text/javascript" language="javascript">
function ChangeText()
{
var tBox = document.getElementById("TextBox1");
tBox.value = "New Text";
alert(tBox.value);
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="TextBox1" runat="server" Text="Old Text"></asp:TextBox>
<asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" OnClientClick="javascript:ChangeText();" />
</div>
</form>
</body>
</html>

the code behid page: Firm1.aspx.cs:

protected void Button1_Click(object sender, EventArgs e)
{
Response.write("New Text"+TextBox1.Text); //out put: "Old Text"[Given at design time]
}

please suggest me where i did wrong.

Pranay Rana

Beacuse field value set by javascript it not available in server side code but you can access value by classical asp pattern string txtvalue = request.form("fieldname")