Top "Postback" questions

A postback is a technique in web development in which a page sends an HTTP POST back to the same form on the server.

ASP.Net: User controls added to placeholder dynamically cannot retrieve values

I am adding some user controls dynamically to a PlaceHolder server control. My user control consists of some labels and …

asp.net postback user-controls
How to determine which button caused postback

I have 2 button controls. When I click one i'm trying to determine which one caused a postback in the page …

asp.net .net vb.net postback
jquery needs to rebind events on partial page postback

How can I rebind my events (jquery) when I perform a partial page postback? I am wiring everything up using: $(…

javascript jquery binding postback
ASP.NET : How can i maintain objects between postbacks?

How can i maintain objects between ASP.NET page post backs ? I have an ASP.NET web page.when i …

asp.net postback
IsPostBack always returns false

I've encountered a weird problem. Everytime I refresh the page, IsPostBack is false. To make sure nothing in my contents …

asp.net postback session-state asp.net-4.0 ispostback
ASP.NET Ajax CalendarExtender will not update SelectedDate value

For some reason, any CalendarExtenders on an ASP.NET site that is being worked on will not be updated. I …

asp.net ajax postback calendarextender
Gridview disappears on postback when paging is enabled

I have a gridview that has its DataSourceID property set to a custom ObjectDataSource object. When AllowPaging is set to …

asp.net gridview postback paging objectdatasource
Prevent closing of ModalPopup on postback

I'm using the ModalPopupExtender control from the AJAX toolkit. This control extends a panel which contains a CreateUserWizard control. However, …

asp.net ajax postback modalpopupextender createuserwizard
ASP.NET / DataItem of DataList is null after Postback

After postback (click on a button) in my ASP.NET form, all the DataItem of my form are null. Why? …

asp.net null postback datalist dataitem
Trigger asp.net link button click on enter key press

I have 2 asp text boxes that I have attached jQuery to trigger linkbutton server side click if enter key is …

jquery asp.net click postback linkbutton