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Page.IsPostBack and Not page.IsPostBack

Posted Date: 22 May 2006 Posted By:: Lakshmi priya Member Level: Bronze Member Rank: 0 Points: 2 Responses: 7

hi !

i want the exact and a clear difference between Page.IsPostBack and Not page.IsPostBack.
what is the purpose of using these? where it is being used?
can anyone help me with a small example.

regards,
LakshmiPriya

Responses

#54581 Author: HimaBindu Vejella Member Level: Gold Member Rank: 0 Date: 22/May/2006 Rating: Points: 2
Submitting the form to it self is post back If(!IsPostBack) is used to avoid page refresh or Page Post Back http://himabinduvejella.blogspot.com http://sysntaxhelp.com/asp.net http://groups.google.com/group/mugh

#54590 Author: bhaskar1021 Member Level: Gold Member Rank: 0 Date: 22/May/2006 Rating: Points: 2
hai lakshmi this is in vb.net if u r using the datagird , the not postback means it vl not postback the page that means it vl not have any chnages in the datagrid if the postback means the page is postback when any changes made in datagrid If (Not Page.IsPostBack) Then binddata() else binddata() end if

#54598 Author: sandeep Avh Member Level: Gold Member Rank: 0 Date: 22/May/2006 Rating: Points: 2
when u run application the code that u want calculate first time then do inside not poast back.and code that u want to ececute each time when click on button or event do in postback Ex: 1)when u see grid and data that do not want change each time set inside not post back.it display in first time not cheng any time 2)when u change time on label each time set inside postback

#54603 Author: suresh chakravarthy Member Level: Bronze Member Rank: 0 Date: 22/May/2006 Rating: Points: 2
this concept not come in vb.net this is in asp.net(WEB Application) In asp.net each time page events fires before firing any event for example U click any button it not directly fire the button click event.before firing button event it fires page events .So each time page refresh so what are value we had we lost and what ever we done losttime samething done each time .but this is not important for us to compile each time same commands.to rectify this problem we use "postback " page.ispostback=false means not do same thing each time do only firsttime page.ispostback=true means do same thing each time when page is refreshed thank q suresh chakravarthy

#54747 Author: rrr Member Level: Gold Member Rank: 0 Date: 23/May/2006 Rating: Points: 2
if page.ispostback means page postback ayete if not page.ispostback means page postback kakapote these two we are used in asp .net

#118331 Author: revathiraj Member Level: Bronze Member Rank: 0 Date: 11/Apr/2007 Rating: Points: 2
Hi.... Ispostback means in the time of page load its property is false so in the time of button submission or clicking only its property is true and the page can display !ispostback means its property default true so in the time of page load the fresh page display automatically.. regards revathiraj

#118334 Author: revathiraj Member Level: Bronze Member Rank: 0 Date: 11/Apr/2007 Rating: Points: 2
Hi.... Ispostback means in the time of page load its property is false so in the time of button submission or clicking only its property is true and the page can display !ispostback means its property default true so in the time of page load the fresh page display automatically.. regards revathiraj

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