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i am trying to implement custom datagridview header but it is not working properly.
it is not drawing on grid

Please help

What I have tried:

my custom header class

public class ImageTextHeaderCell : DataGridViewColumnHeaderCell
    {
        public readonly Label lblText;
        public readonly PictureBox CntrImage;


        public event EventHandler ImageClick;

        public ImageTextHeaderCell()
        {
            lblText = new Label();
            CntrImage = new PictureBox();
            lblText.Font = Control.DefaultFont;

            

            //lblText.MouseClick += new MouseEventHandler(MouseClick);
            CntrImage.MouseClick += new MouseEventHandler(MouseClick);
            
        }

        private void MouseClick(object sender, MouseEventArgs e)
        {
            //Debug.WriteLine("x:{0}, y:{1}, button:{2}", e.X, e.Y, e.Button);
            //OnClick(new DataGridViewCellEventArgs(ColumnIndex, RowIndex));
            if (ImageClick != null)
            {
                ImageClick(this, EventArgs.Empty);
            }


        }

        public string Text
        {
            get { return lblText.Text; }
            set { lblText.Text = value; }
        }

        public Image ControlImage
        {
            get { return CntrImage.Image; }
            set { CntrImage.Image = value; }
        }

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

            lblText.Location = new Point(cellBounds.Left, cellBounds.Top + 3);
            lblText.Height = cellBounds.Height;
            lblText.Width = cellBounds.Width - 41;

            CntrImage.Location = new Point(lblText.Right + 1, cellBounds.Top + 3);
            lblText.Height = cellBounds.Height;
            
        }
        

    }


and my code on form

DataGridViewTextBoxColumn dataGridViewTextBoxColumn = new DataGridViewTextBoxColumn();
            dataGridViewTextBoxColumn.DefaultHeaderCellType = typeof(ImageTextHeaderCell);
            //dataGridViewTextBoxColumn.HeaderText = "Password";
            ImageTextHeaderCell dataGridViewImageColumnHeaderCell = dataGridViewTextBoxColumn.HeaderCell as ImageTextHeaderCell;
            dataGridViewImageColumnHeaderCell.Text = "hello";
            dataGridViewImageColumnHeaderCell.ControlImage = global::WFAppGrid.Properties.Resources.Star;
            dataGridViewImageColumnHeaderCell.ImageClick += dataGridViewImageColumnHeaderCell_ImageClick;
            
            this.dataGridView1.Columns.Add(dataGridViewTextBoxColumn);
Posted
Comments
RickZeeland 7-Mar-17 14:11pm
   
Maybe using an ImageList could help: http://www.viblend.com/forum/d_postsm57_Display-an-image-in-a-Column-Header.aspx#post57

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