I have created a radiobutton list followed by one button. I can select one of the item from the radiobutton list and then click the button to execute something. And I want the page to pop up a window if the button is clicked without selecting any of the options from the radiobutton list. My codebehide is like this:
protected void ButtonPP_Click(object sender, EventArgs e)
{
if (radioBtnPP.SelectedIndex < 0)
{
String csname1 = "PopupScript";
Type cstype = this.GetType();
// Get a ClientScriptManager reference from the Page class.
ClientScriptManager cs = Page.ClientScript;
// Check to see if the startup script is already registered.
if (!cs.IsStartupScriptRegistered(cstype, csname1))
{
StringBuilder cstext1 = new StringBuilder();
cstext1.Append("<script type=text/javascript> alert('Please Select Criteria!') </");
cstext1.Append("script>");
cs.RegisterStartupScript(cstype, csname1, cstext1.ToString());
}
}
}
and my html part is:
<asp:RadioButtonList class ="radioBtn" ID="radioBtnACO" runat="server">
<asp:ListItem Text="All Dim" />
<asp:ListItem Text="Select Dim" />
</asp:RadioButtonList>
<asp:Button id ="ButtonPP" class ="buttonRight" runat="server" Text="Run PP" OnClick="ButtonPP_Click" />
This works fine. However, now I don't want to refresh the whole page when i click the button, so I use updatepanel. And I changed my html code to the following:
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="ControlUpdatePanel" runat="server" Visible="True">
<ContentTemplate>
<asp:RadioButtonList class ="radioBtn" ID="radioBtnACO" runat="server">
<asp:ListItem Text="All Dim" />
<asp:ListItem Text="Select Dim" />
</asp:RadioButtonList>
<asp:Button id ="ButtonPP" class ="buttonRight" runat="server" Text="Run PP" OnClick="ButtonPP_Click" />
</ContentTemplate>
</asp:UpdatePanel>
But now my code doesn't work anymore... If I don't select any option from the radiobutton list and just click the button, no window would pop up :( I am sure my codebehind is still executed but seems like it just doesn't passed to my .aspx page...
Anyone please help me out? I don't know what to do now... Millions of thanks!