c# - Keep page contents while post back -

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when ever postback page blanked, have seen pages, page not being blank while post back

can give me idea how can done

thank you

   private void page_load()     {        if (ispostback)         {              // postback          }       else           {               // not postback          }           }

refer link

http://msdn.microsoft.com/en-us/library/system.web.ui.page.ispostback.aspx


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