在asp.net中的确认消息？

Question

<script type = "text/javascript">
    function Confirm() {
        var confirm_value = document.createElement("INPUT");
        confirm_value.type = "hidden";
        confirm_value.name = "confirm_value";
        if (confirm("Do you want to save data?")) {
            confirm_value.value = "Yes";
        } else {
            confirm_value.value = "No";
        }
        document.forms[0].appendChild(confirm_value);
    }
</script>

and my code behind code is

protected void btnSave_Click(object sender, EventArgs e)
{
   string confirmValue = null;
   confirmValue = Request.Form["confirm_value"];
   if (confirmValue == "No")
   {
      some code....
   }
   else
   {
     return;
   }
}

What actually gonig is confirmValue storing the values like yes,No,Yes,No .
But for first time it will show confirmation message, I will click on Ok button and some entries will done then I click on save button it will show again message box at this time I will click on Cancel button then it will go into the if condition but confirmvalue is storing First clicked yes and Next time clicked no so it is going into else condition ....

what i have to do please help me b

Answer 1

The cleanest way is to simply use the "OnClientClick" property of the button control like so:

OnClientClick="return confirm('Do you want to save data?');"

If the user clicks "No" then the button event will never fire... You don't need any of that other stuff.