My question is a little bit tricky. at least I think. Maybe not, anyway. I want to know if there’s any way to know if the user is leaving the page. Whatever if he clicks “Previous button”, closing the window or ckicking on a link on my website. If my memory’s still good, I think it’s possible with JavaScript.
I like to call a JavaScript function from c#. Can any one can give me code snippet.
In case of Page_Load, Init and other page events, what is the use of these (object sender, EventArgs e) parameters?
I recently started using ScriptManager. I have an ASP.NET DropDownList control that I’m populating via JavaScript. However, I’m using Event Validation. So I run into the error below if I don’t use the “RegisterForEventValidation” call here for my dropdown. How do I know what value(s) to set in the second argument (where I have “value”)? I am populating my dropdown via JavaScript, so I won’t know what values are there from my code behind. I’m guessing that Render is called during an AJAX partial rendering postback, correct? Or is it not, so this is called regardless of whether I’m doing a full page postback or not. I guess I’m wanting to hear not only the answer to my question, but if you can share your experiences with me about the error below. I love input, just like Johnny #5.
I have configured log4Net EventLogAppender for Asp.Net 2.0. However it does not log anything. I have following in my Web.Config.
Do the same best practis rules regarding subscribing/unsubscribing to events apply in asp.net?
I’m trying to trigger a button event in a gridview. I created a gridview with the following code:
I have a form which inserts data in DB on Submit button click but the problem is when client click the button multiple times its sends multiple create requests means multiple button click events for the same time of same data, which must not be.
This following code handle button click event. When the user click first time it sets the lable as “First Time”, and when the user click second time it sets the lable as “Second Time”. But it doesn’t work properly. When I first click it, it sets the lable as “First time”, which is correct, but when I click second time, nothing happend.
This is a bit of a Visual Studio question. I feel with all the helpful Intellisense there should be something to assist but I can’t seem to find it.