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Pop up not refreshed

Posted By:      Posted Date: September 14, 2010    Points: 0   Category :ASP.Net
Hello guys, I'm a newbie in asp.net and need help...OK, here is my case...I have a webpage and there is a button that open a pop up (call it 'Pop-up A') use JavaScript window.showModalDialog("..."). And in Pop-up A there is a button to open another Pop-up (Call it 'Pop-up B). There is a gridview in Pop-up B, the gridView's datasource is from database table Subject. There is a menu to update or insert new row to table Subject. When the first time I call the Pop-up B, the gridView is updated based on DB. But if I insert new row for this table Subject (from the web application of course), and I go to the Pop-up B, the gridView isn't refreshed. To close this Pop-up B, I use JS window.close() method.Description :1) First visit to Pop-up B the gridView (table Subject) = {A, B , C, D}2) I add new row from this application, so data in table Subject are {A, B, C, D, E}3) I Go to Pop-up B again the data still the same {A, B,C, D}. It's not updated.When I debug the program, I realised that the first time I visit Pop-up B, it goes into Page_Load method. But the secong time (after I changed the data), it doesn't go into Page_Load method, so the datasource and databind() don't run..:: CODE : JS to open Pop-up Bfunction OpenPopSubject()    {        var Return;        Return = window.

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