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Why check box is not working fine in WinForms GridControl?

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Cell value type

The Boolean CellValueType, the check box selection will not work properly. The check mark will be enabled only after 2 clicks with the following code,


gridControl1[rowIndex, CheckBoxColumnIndex].CellValueType = typeof(bool);



gridControl1(rowIndex, CheckBoxColumnIndex).CellValueType = GetType(Boolean)



This issue can be resolved by handling the intermediate option through the CheckBoxOptions property. Pass flateLook value as true to draw the flat checkbox, otherwise false.


gridControl1[rowIndex, CheckBoxColumnIndex].CheckBoxOptions = new GridCheckBoxCellInfo("true", "false", "indeterminate", true);



gridControl1(rowIndex, CheckBoxColumnIndex).CheckBoxOptions = New GridCheckBoxCellInfo("true", "false", "indeterminate", True)



C#: CheckBox_C#

VB: CheckBox_VB

Reference link:


I hope you enjoyed learning on why the check box is not working fine when the CellValueType is set to bool in WinForms GridControl.

You can refer to our WinForms Grid feature tour page to know about its other groundbreaking feature representations. You can also explore our documentation to understand how to present and manipulate data.

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