I am facing a challenge with implementing JavaScript code within an update panel in my ASP.Net web form application using server-side code. Interestingly, the code I have only seems to work when placed outside of the update panel, and not within it, even with alerts.
<form id="form1" runat="server">
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:Button ID="Button1" runat="server" Text="Server" OnClick="Button1_Click"/><br />
<asp:Button ID="Button2" runat="server" Text="Client" OnClientClick="alert('Hello World(Client)')"/>
</ContentTemplate>
</asp:UpdatePanel>
</div>
</form>
Code Behind
protected void Button1_Click(object sender, EventArgs e)
{
this.ClientScript.RegisterStartupScript(this.GetType(),
"ShowMessage", string.Format("<script type='text/javascript'>alert('{0}')</script>",
"Hello World (Server)"));
}
Upon testing the application, only the Client Click event seems to be functioning while the server-side event is not triggering. Surprisingly, upon removing the update panel and retrying, both events execute properly. Despite extensive research on similar issues, none of the solutions provided seemed to resolve the problem for the specific example mentioned above. Any help in fixing this issue would be greatly appreciated. Thank you.