How to display “yes” or “no” message box in asp.net?

Question

I want to display a message to the user to select yes or no . According to the clicked button(Yes or no), the value should be passed to a query as a parameter . How can I do this. This is what I have done so far.

  <script type="text/javascript"> function confirm() { var confirmValue = document.createElement("INPUT"); confirmValue.type = "hidden"; confirmValue.name = "confirmValue"; if (confirm("Do you want to finalize? If you click yes, you will not be able to update and application will be passed to the MBD Coordinator")) { confirmValue.value = "YES"; } else { confirmValue.value = "NO"; } document.forms[0].appendChild(confirmValue); } </script> 

 <asp:Button ID="btnFinish" runat="server" Text="Finish" BorderStyle="Solid" BorderColor="#9B0423" Font-Bold="true" Width="100px" Height="30px" ForeColor="#9B0423" Style="margin-right:20px;" OnClick="btnFinish_Click" OnClientClick = "confirm()"/> 

This is the C# code

string confirmValue = Request.Form["confirmValue"];
if (confirmValue == "Yes")
{
      string value = "YES";
}
else
{
      string value = "NO";
}                  

But in this I don't get a message to select any option.

Answer 1

Change the name of the function from "confirm" to something else. You are overriding the default confirm function in JavaScript.