How to: Custom Paint Sort Glyphs Within Column Headers

  • 2 minutes to read

This example demonstrates how to fill the "Category_Name" column header with the Coral color.

using DevExpress.Utils;
using DevExpress.Utils.Drawing;
using DevExpress.XtraGrid;
using DevExpress.XtraGrid.Views.Grid;

private void Form3_Load1(object sender, EventArgs e) {
    CustomDrawColumnHeader(gridControl1, gridView1);
}

public static void CustomDrawColumnHeader(GridControl gridControl, GridView gridView) {
    // Handle this event to paint columns headers manually
    gridView.CustomDrawColumnHeader += (s, e) => {
        if (e.Column == null || e.Column.FieldName != "Category_Name")
            return;
        // Fill column headers with the specified colors.
        e.Cache.FillRectangle(Color.Coral, e.Bounds);
        e.Appearance.DrawString(e.Cache, e.Info.Caption, e.Info.CaptionRect);
        // Draw the filter and sort buttons.
        foreach (DrawElementInfo info in e.Info.InnerElements) {
            if (!info.Visible) continue;
            ObjectPainter.DrawObject(e.Cache, info.ElementPainter, info.ElementInfo);
        }
        e.Handled = true;
    };
}