I have a user control dropdownlist, and its intended that when a user selects any item from dropdownlist , then accordingly image is displayed on the same form.

My problem is, when i select once from dropdownlist then , the page is going through the page_load and after clicking again the second time, it again walks through page_load and diretly displayes image

My question is, is it possible to avoid the page_load in any way ? & to load when i select the item first time from the dropdownlist ??

please help me to resolve this...

10 Years
Discussion Span
Last Post by tuse

If you want the code inside the Page_load to execute just the first time the page loads and prevent it from executing subsequently, put this part of code inside an if not IsPostBack block

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

 If Not IsPostBack Then

' Code here that needs to be executed only on first page_load

End If
End Sub

IsPostBack is a Boolean property of a page when is set (=true) when a page is first loaded. Thus, the first time that the page loads the IsPostBack is false and for subsequent PostBacks, it is true.

Read more here: http://dotnet.tekyt.info/?p=30

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