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show value in label on textbox change event

Posted By:      Posted Date: September 06, 2010    Points: 0   Category :ASP.Net
I want to show value in label on textbox change event , means when user enter text in text box then this value should display in label  . I am using this:<asp:UpdatePanel ID="UpdatePanel1" runat="server">    <ContentTemplate>     <asp:TextBox ID="TextBox5" runat="server" ontextchanged="TextBox5_TextChanged" AutoPostBack="true"></asp:TextBox>    </ContentTemplate>    </asp:UpdatePanel>========================================================protected void TextBox5_TextChanged(object sender, EventArgs e)     {         ViewState["xyz"] = Convert.ToInt32(TextBox4.Text) - Convert.ToInt32(TextBox5.Text);         ViewState["xyz1"] = Convert.ToInt32(ViewState["xyz"].ToString()) * 100;         lbldiff.Text = ViewState["xyz"].ToString();         lblprofit.Text = ViewState["xyz1"].ToString();     }protected void TextBox5_TextChanged(object sender, EventArgs e)    {        ViewState["xyz"] = Convert.ToInt32(TextBox4.Text) - Convert.ToInt32(TextBox5.Text);        ViewState["xyz1

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