Run Java Script from C# Code Behind no Button

Question

I have an asp web application and need to call a JavaScript confirm function from within a C# if statement. I am a very very weak on JavaScript so be gentle. Here is my JavaScript I have placed on the ASPX page:

function Confirm() 
{
    var result = window.confirm('Are you sure?');
    if (result == true)
       return true;
    else
       return false;
}

here is the C# code when I want to call this script. What I am trying to accomplish is check 2 values on my aspx page the first is a CaseID and the second in the value of a checkbox. If the code runs I want to show the confirmation box and if they click yes then redirect to another page.

else if (rec.Count != 0 && rec.Select(s=> s.IsClosed).First().Value == true && chkOverRide.Checked == false)
{
     //if the case is closed and not overridded redirects to edit page
     ScriptManager.RegisterStartupScript(
           this,
           GetType(),
           "key",
           "confirm('Are you sure you want to continue?');",
           true);
      Response.Redirect("~\\Forms\\EditRecord.aspx?CaseId="+ rec.Select(s => s.CaseNum).First(), false);
      return false;
}

I have tried this but nothing happens I do not get a confirmation box the code just falls thru and runs the redirect. Thanks

Answer 1

As I worked thru this problem I found I had some issues that were causing my failures. The first issue was I was using a C# redirect which was causing a post back so my JavaScript code never showed the JavaScript box. I had to rethink the process and ended up using JavaScript to do the redirect. Here is what the new JavaScript looks like.

function Confirm(caseId) {
            var result = window.confirm('This case already exists and completed. Please reopen it for further updates?');
            if (result == true)
                window.location = '\EditRecord.aspx?CaseNum='+caseId;
            else
                return false;
        }

And the C# Method now looks like this:

else if (rec.Count != 0 && rec.Select(s=> s.IsClosed).First().Value == true && chkOverRide.Checked == false)
            {//if the case is closed and not overridded redirects to edit page
                ScriptManager.RegisterStartupScript(this,GetType(),"key", "Confirm('" + CaseNumber + "');", true);

Method now works as expected.