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GWT Window Cache problem

 
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Hello,
This is my situation. I have a GWT page which has a list grid and 2 buttons called Add and Modify

I have a public method inside my entrypoint class which returns a Vlayout which has form components, and when i click on the Add or Modify i populate the GWT window with this Vlayout

The difference is on Add i have to show the Vlayout with empty form components and when i click on Modify i have to pre populate the form components with values from the database.

When i click on Add first, the window shows up fine. When i click on modify after that the Vlayout is not drawn again it just gets it from cache and displays with empty form items.

Same happes vice versa, when i click Modify first the vlayout with form items prepopulated is shown, when i click on Add or Select another row in listgrid and click modify it still shows the vlayout with form items for the old record which i clicked on initially.

Please help me with this problem
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