I tried to reproduce the problem you described, but to no avail. You can find attached the sample page that I used for testing. Please compare it to your actual project and check if there are differences in the setup (you will need a Northwind database attached to run it). I would also suggest examining this screen capture
of the behavior on my end in order to let me know if I am missing something.
If you are creating the docks with their content programmatically, I would recommend doing so on the PreInit or Init event of the page, as shown in the online demo My Portal
. This way you will ensure that the docks and the grids inside are initialized properly.
Note that currently I am guessing what your setup is. If you are still having difficulties, please try modifying the attached sample in order to recreate your scenario or if this is not possible, send a simple, fully runnable project that isolates the problem so that I can inspect it locally and provide a more to the point answer.
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