CODEWITHSUNDEEP
c#.netwinformsdatagridviewcustom-controls
Booser
Booser

Reputation: 596

DataGridView custom cell should use normal ForeColor when selected

I made some custom DataGridViewTextBoxCell instances. In most of them I set custom ForeColor values and that works fine. But when the SelectionMode is FullRowSelect it overrides my ForeColor values for this cell.

I tried to set it in the Draw event when the cell is selcted but it does not work.

My cell is definde as follows.

public class CustomCell : DataGridViewTextBoxCell
{
    protected override object GetFormattedValue(object value, int rowIndex, ref DataGridViewCellStyle cellStyle, TypeConverter valueTypeConverter, TypeConverter formattedValueTypeConverter, DataGridViewDataErrorContexts context)
    {
        if (string.IsNullOrEmpty(value.ToString()))
        {
            return base.GetFormattedValue(value, rowIndex, ref cellStyle, valueTypeConverter, formattedValueTypeConverter, context);
        }

        if (value.ToString().Contains("test"))
        {
            cellStyle.ForeColor = Color.Blue;
        }
        return base.GetFormattedValue(value, rowIndex, ref cellStyle, valueTypeConverter, formattedValueTypeConverter, context);
    }
}

I don't want to change the selection mode but I want to show this cell with its right ForeColor but the selection BackColor.

How could the solution to this look like?

Upvotes: 1

Views: 43

Answers (1)

Reza Aghaei
Reza Aghaei

Reputation: 125277

You can override Paint method of cell and set cellStyle.SelectionForeColor to the same color of ForeColor:

protected override void Paint(Graphics graphics, Rectangle clipBounds,
    Rectangle cellBounds, int rowIndex, DataGridViewElementStates cellState,
    object value, object formattedValue,
    string errorText, DataGridViewCellStyle cellStyle,
    DataGridViewAdvancedBorderStyle advancedBorderStyle,
    DataGridViewPaintParts paintParts)
{
    if (string.Format("{0}", formattedValue) == "something")
    {
        cellStyle.ForeColor = Color.Red;
        cellStyle.SelectionForeColor = cellStyle.ForeColor;
    }
    base.Paint(graphics, clipBounds, cellBounds, rowIndex, cellState, value,
        formattedValue, errorText, cellStyle, advancedBorderStyle, paintParts);
}

Note: You can do the same using CellFormatting or CellPainting event of DataGridView without creating a custom cell.

Upvotes: 1

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