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Used to get or set the state of the cell at the column passed. This assumes that the passed cell is a CheckBox cell. Use the CellType property to set a cell to a CheckBox cell. DesktopCheckBox.VisualStates is an Enum of the DesktopCheckBox class.
The CellCheckBoxStateAt method enables you to get or set the value of a tri-state Checkbox cell. Any cell of type TypeCheckbox box can store one of three values: Checked, Unchecked, and Indeterminate.
To set up a cell as TypeCheckbox, use code such as this in the Opening event:
The Indeterminate state places a minus sign in the checkbox (macOS) or filled in checkbox (Windows and Linux).