13 Comments

• Thanks for the tip.
  
  But where is ViewState["IsUserControlPostBack"] set to some value?
  

• No, it won't. The IsPostBack property for a UserControl returns the same value as the IsPostBack property for the page. If you're getting true every time, you must be doing something unusual.
  

• You should do a little testing on your assumption of IsPostBack always equaling true inside of a UserControl. I'm working on a user control right now and put in Response.Write(Page.IsPostBack) and Response.Write(IsPostBack), and on a get request they both output "False".
  

• Umm, IsPostBack can be false in a UserControl. Are you sure you're not doing something else wrong?
  

• Hi there,
  
  Page.IsPostBack is not always true inside a control. What's the catch?
  
  Thanks
  

• I could Not follow. Where are you adding the value for the ViewState["IsUserControlPostBack"]
  

• But wouldn't Page.IsPostBack achieve this?
  

• As far as I know, the IsPostback property works the same inside a Web User Control as it would be working inside a page.
  Could you provide an example where it doesn't?
  

• This is simply false. IsPostBack returns the proper value inside a user control. Maybe you are misguided? Is there some other issue that you or not seeing?
  
  Please don't spread false information.
  

• The IsPostBack property will *NOT* always return true in a UserControl - it returns the same value as the Page.IsPostBack property.
  

• When dynamically adding a usercontrol to a postedback page ,the this.ispostback property of usercontrol will always be true...this is what been asked i suppose...
  its true bcoz it returns the same value as the Page.IsPostBack property.
  
  Question is how will u know that usrecontrol is loaded first time (on the same page) or not?
  

• just use session to persist your flag whether its postbak or not....
  

• simply use Session to persist a flag for whether its is Postbak or not ...