Messagebox woth confirm options

Greetings

I am in need of a message box (for an ASP.Net app) that allows the the user to choose from one or two options. After allowing the user to select, the application must be able to detect what button was clicked and execute appropriate coding.

Any ideas?


allanmark
allanmarkAsked:
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nisarkhanConnect With a Mentor Commented:
are a number of ways you can do this. I'll give you a few options.

1. Use the ASP.NET AJAX ModalPopup Control from the AJAX Control Toolkit.

http://asp.net/AJAX/AjaxControlToolkit/Samples/ModalPopup/ModalPopup.aspx 

 2. Use Javascript.


<head runat="server">    
<title>Untitled Page</title>    
<script language="javascript" type="text/javascript">        
function confirmation()      
 {          
 var result = confirm('Record already exists, Do you really want to add?');          
 if (result)          
 {              
 return true;            
}            
else            
{                
return false;            
}        
}    
</script>
</head>

Then in your code-behind file add the following:
Button1.Attributes.Add("onclick", "return confirmation();");

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nisarkhanCommented:
<html><head><title>href confirm</title>
<script type="text/javascript">
function linkRef(yurl ){
var linkref = yurl;
if(confirm("do you really want to go here?")){
window.location.href=linkref;
}
}
</script>
</head>
<body>
<a href="#" onClick="linkRef('http://www.yahoo.com' )">Yahoo.com</a>
</body>
</html>
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nisarkhanCommented:
or

using the default JavaScript confirm dialog you are stuck with "OK" and "Cancel"

The easiest way to do what you want is to call a function.

Button1.Attributes.Add("onClick", "myFunction();")

And then create your function on your page...

HTML Code:
<script type="text/javascript">
function myFunction() {
  if confirm('Do you want to mark this form as complete?\nThis is line 2.') {
    //put the stuff to do for OK here
  }
  else {
    //Put the stuff for Cancel here
  }
}
</script>To get a line break you can use the \n escape character. (Also in the example above.)
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allanmarkAuthor Commented:
What if you don't want to launch the messagebox from a button click? ie you want to call it from behind code (eg when the total num records exceeds a limit) - and you wanttoi eb able to store the value of the button clicked??

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ZvonkoConnect With a Mentor Systems architectCommented:
You cannot interact from code behind to browser user. The HypertTextTransferProtocol allows you to send to one browser request only one web server reponse. Outside that request-response calls you cannot do anything, not even with AJAX. You cannot send NOTHING from server to browser outside that request-response calls. You cannot send not even two or more responses to one request, onely one reposnse to one request.

Also the web server execution has to finish it processing to flush the browser text response. So you cannot stop in the middle of your server processing to wait for browser response.



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rajupsConnect With a Mentor Commented:
Hi,
You can use the "RegisterStartupScript" to call the Java Script function from the code behind which will inturn do the required validation.

All the Best,
Raju P. S
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allanmarkAuthor Commented:
Tried the following:

    protected void Page_Load(object sender, EventArgs e)
    {
        string jScriptValidator;
        jScriptValidator = "<script> function ReqFieldValidator()" +
                    " { if (document.forms[0].TextBox1.value == '') \n";
        jScriptValidator += "{ alert('TextBox cannot be empty') \n ";
        jScriptValidator += "return false; \n";
        jScriptValidator += "} \n";
        jScriptValidator += " return true \n";
        jScriptValidator += " } </script>";
//        ClientScript.RegisterClientScriptBlock(GetType(), "regJSval", jScriptValidator);  
        ClientScript.RegisterStartupScript(GetType(), "regJSval", jScriptValidator);       //
        Button1.Attributes.Add("onclick", "return ReqFieldValidator()");        
    }

In the code above the JS function is attached to the button click event -- thsi works fine. I tried the RegisterCLeintScriptBlock --. thought it would execute the function immediately!! WHAT DID I DO WRONG??
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rajupsConnect With a Mentor Commented:
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