How to use same data block in 2 canvas..

Hi,

I have a form where there are multiple windows with different canvas. These windows are displaying, updating the data from same table so i have kept only one datablock.

First window is the main window(window1), whereas the second one(window2) will open on certain conditions.

The problem i am facing is that when i open the form query find window opens after that on find button since i have written app_find.find(Datablock_name); the conditonal window also opens and doesn't close since it also refers to same data block.

If i use two datablocks then although i update the data in the table from window 2 which gets saved into the table also, but message shows up,