Looping through datagrid and prompting user with a OK/Cancel or Yes/No message box

I'm am looping through a datagrid, and depending on some logic, I want to prompt the user within the loop if they want to continue or not.  So, I need to have a message box embedded in my loop that has an OK/Cancel or Yes/No prompt.  What do I need to do to get this working?

This would be written in c# ASP.NET

Below in my code, the part where it verified for the "W", I put code where I need this to work, it reads:

if msgbox("WARNING: Form <form #> is already attached to this risk. Would you like to attach again?) = yes then
     Session["WordingAttached"] = "false";
else
     Session["WordingAttached"] = "true";
end if

So, I need the code modified above to work....

Thanks...

foreach(DataGridItem dgAttachedItem in dgAttachedWordings.Items)
{
if (dgAttachedItem.Cells[1].Text == dgItem.Cells[1].Text)
{
 
//wording duplicate rules
if (dgAttachedItem.Cells[3].Text == "T" || dgItem.Cells[4].Text == "T")
{
MsgBox("Form " + dgAttachedItem.Cells[1].Text + " is already attached to the risk. Duplicate attachment of this form not allowed.");
Session["WordingAttached"] = "true";
}
else if (dgAttachedItem.Cells[3].Text == "A" || dgItem.Cells[4].Text == "A")
{
Session["WordingAttached"] = "false";
}
else if (dgAttachedItem.Cells[3].Text == "W" || dgItem.Cells[4].Text == "W")
{
	if msgbox("WARNING: Form <form #> is already attached to this risk. Would you like to attach again?) = yes then
	
		Session["WordingAttached"] = "false";
		
	else
	
		Session["WordingAttached"] = "true";
	end if
	
}
else
{
Session["WordingAttached"] = "true";
}
 
break;
}
else
{
Session["WordingAttached"] = "false";
}
 
}

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LVL 2
michael1174Asked:
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TSmoothConnect With a Mentor Commented:
The MsgBox method can't be used with ASP.NET because ASP.NET code is executed on the server and thus it would just pop the message box with prompt up on the server which no one usually sees and it would just sit there waiting for a response.

Due to the disconnected/stateless nature of the web, you may want to re-think what you are trying to accomplish and if there's a smarter way to achieve the same result. If you wanted to continue with an approach like this, you would need to store the index of the datagrid row you are working on in your loop as a session variable and then make your looping function capable of starting at the given start index and continuing. Your prompt for the user would need to come back in the form of some html code.
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