Multiple font colors in one cell

Cory Rainbeau

May 02, 2012 14:38

What is the best solution, in terms of performance, for allowing the font text in a cell to have multiple colors, if possible?

0

• 

  Dapfor Team

  May 02, 2012 18:41

  Hi,

  You should implement Grid.PaintCell event handler. An example:

   

  grid.PaintCell += delegate(object sender, PaintCellEventArgs e)
  {
      //Do default drawing without text
      e.Parts &= e.Parts ^ PaintPart.Text;
      e.PaintAll();
      e.Handled = true;
  
      if(!string.IsNullOrEmpty(e.Text))
      {
          SolidBrush[] brushes = new SolidBrush[] { 
              new SolidBrush(Color.Red),
              new SolidBrush(Color.Green),
              new SolidBrush(Color.Blue),
              new SolidBrush(Color.Purple) };
  
          float x = 0;
          string text = e.Text;
          for (int i = 0; i < text.Length; i++)
          {
              // draw text in whatever color
              string character = text[i].ToString();
              e.Graphics.DrawString(character, 
                                    e.Font, 
                                    brushes[i % brushes.Length], 
                                    e.Cell.VirtualBounds.X + x, 
                                    e.Cell.VirtualBounds.Y);
         
              // measure text and advance x
              x += (e.Graphics.MeasureString(character, e.Font)).Width;
          }    
      }
  };

   

  Best regards,

  Dapfor

  
  
  
  MultipleFontColorsInCell.png

  0
• 

  Cory Rainbeau

  May 02, 2012 19:42

  Thank you.

  0

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