Problem of set focus on the cell during the validation.

I am having a table with 5 columns.
I can change the value of the 2nd cell in 2 ways.
one by 1. editing the 2nd cell
or by 2. clicking the button avilable in the 1st cell.(the button editor will set the value to the 2nd cell of selected row)
In both cases, i have to validate the value in the 2nd cell.
If the value is not meeting some criteria, i am pop uping a msg box, contain approprite message.
and the cursor should be focused on the 2nd cell until the value will be corrected.
i done for the case 1.
but for the case 2, i couldn't keep the cursor on the 2nd cell when the value got changed by the button editor of cell 1, and if the value is wrong
The 1st cell 2nd cell are having it own Renderer and Editor
even i tried a lot, but i not yet achieved it.
pls. guide me to get a perfect result.

Thnks for u'r reply.
the 1st part what i mentioned is done by the same way in those example by the sun site only.
But in the 2nd part, when i set the value to text field by the button editor,
the editor of the textField(2nd cell), is not got called.
If i made to call editor also, i am unable to keep the cursor on 2nd cell

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hi Carles Costa,
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If you need further help then you need to create a [Short, Self Contained, Compilable and Executable, Example Program (SSCCE)|http://homepage1.nifty.com/algafield/sscce.html], that demonstrates the incorrect behaviour.
Don't forget to use the Code Formatting Tags so the posted code retains its original formatting. That is done by selecting the code and then clicking on the "Code" button above the question input area.

Problem of set focus on the cell during the validation.

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