I have changed a DataGridViewCheckBoxCell to contain a string at the right of the

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Asked: June 13, 20262026-06-13T23:12:05+00:00 2026-06-13T23:12:05+00:00

I have changed a DataGridViewCheckBoxCell to contain a string at the right of the

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I have changed a DataGridViewCheckBoxCell to contain a string at the right of the CheckBox that reflects the CheckBox value. When it’s true, the string is “Value1”; when it’s false the string should change to “Value2”.

The string value is changing only after the DataGridViewCheckBoxCell loses focus. I want the string value to change right after the CheckBox value changes. How can I do that?

For reference, this is my personalized DataGridViewCheckBoxCell class:

public class MyDGVCheckBoxCell : DataGridViewCheckBoxCell
{
    public static string TRUE_VALUE = "Excitada";
    public static string FALSE_VALUE = "Monitorada";

    public MyDGVCheckBoxCell(bool isExcitada)
    {
        FalseValue = FALSE_VALUE;
        TrueValue = TRUE_VALUE;
        Value = isExcitada ? TRUE_VALUE : FALSE_VALUE;
    }

    protected override void Paint(Graphics graphics, Rectangle clipBounds, Rectangle cellBounds, int rowIndex, DataGridViewElementStates elementState, object value, object formattedValue, string errorText, DataGridViewCellStyle cellStyle, DataGridViewAdvancedBorderStyle advancedBorderStyle, DataGridViewPaintParts paintParts)
    {
        base.Paint(graphics, clipBounds, cellBounds, rowIndex, elementState, value, formattedValue, errorText, cellStyle, advancedBorderStyle, paintParts);

        Rectangle contentBounds = this.GetContentBounds(rowIndex);

        Point stringLocation = new Point();

        stringLocation.Y = cellBounds.Y + 4;
        stringLocation.X = cellBounds.X + contentBounds.Right + 1;

        graphics.DrawString(this.Value.ToString(), Control.DefaultFont, System.Drawing.Brushes.Black, stringLocation);
    }
}