Datagridview Check Box

Why not use a RadioButton instead?

I never thought about it ..let me check it for a while and i msg you back..
thank you for your reply...

How do i represent a radio button in a datagridview ?...there no choise to change a checkbox column to a radio button column.

Try these links

http://msdn.microsoft.com/en-us/library/aa730882(VS.80).aspx

http://social.msdn.microsoft.com/Forums/en-US/winformsdatacontrols/thread/c139af5b-53ff-49e0-9968-a0b2b6e8bcff

i think it a litle trick for me and not for my level...(it is not vb.net)
How about this..
i need only one check box to be checked
In a total of Rows.Count if >1 checkboxes are checked then message and reject last changes?
This Will Be accomplished by clicking the save button..
I have a code for that is this a good way?

You might be able to do that by attaching to the EditorControlShowing event handler, checking the state of a module-level state flag, and set the CheckBox.Enabled = False for all other CheckBoxes.

It is working ...i just add the
If CheckboxCount =0 then....
because always i need one to be checked..
thank you CodeCruiser

Thanks Also the LearnedOne for his answers

Code Cruiser ....just a correction....i change the "Value" with "FormattedValue"
to prevent the DBNULL TO BOOLEAN CONVERSION

That is a good step. You could also use the IsDBNull function to make sure its not null.

i 've done it both ....and both works properly....
see u in another question...thank you very much