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.NET Forum / Windows Forms / WinForm General / September 2006Setting value of datagridviewcheckboxcell
I have a datagridview with a datagridviewcheckboxcolumn. The datagridview is bound to a custom collection. The DGV, itself, is loading fine, but I cannot seem to figure out how to programmatically set whether or not the checkbox is checked. I've tried the following: row.Cells("colName").Value = true ctype(row.Cells("colName"), DataGridViewCheckBoxCell).Value = True I've tried changing the value in the DataBindingComplete event. I've tried unbinding the grid and just setting the value as I'm adding rows to the row collection. Nothing seems to work. I can watch it step right over the line of code in the debugger and the value doesn't change at all...it just stays at Nothing. Any help would be much appreciated! Diane I've got some more information on the issue. I can set the checkbox to checked if I set the DataPropertyName for the checkbox column. This doesn't work for me, though. I *want* this to be an unbound column and to control the value at runtime. Plus, how on earth would you use this in an unbound datagrid if the column has to be bound? >I have a datagridview with a datagridviewcheckboxcolumn. The datagridview >is bound to a custom collection. The DGV, itself, is loading fine, but I [quoted text clipped - 13 lines] > Any help would be much appreciated! > Diane For anyone who is having a similar problem, I figured it out: I was setting VirtualMode to true. When I set it to false, my code below worked fine. Apparently you can't edit the value of columns in VirtualMode? > I've got some more information on the issue. I can set the checkbox to > checked if I set the DataPropertyName for the checkbox column. This [quoted text clipped - 19 lines] >> Any help would be much appreciated! >> Diane Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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