title: DataGridView Cell Backcolor not set
body: <p>I have a DataGridView with four columns. The first three are returned back as an array: red, green and blue. All values are between 0 and 255. I've programmatically added a column called "Colour". I'd like the backcolor of this column to reflect the RGB content. 
  I can see the rgb data correctly, and using the debugger, the backcolor is being set correctly against the property. I can also set the column's backcolor and it displays correctly. I've tried setting the "Red" cell's backcolor and this doesn't work either.</p>
  
  <p>The below code results in a completely white column. </p>
  
  <p>Here's my code:</p>
  
  <pre><code>        DataGridViewColumn DGC = new DataGridViewColumn();
          DGC.Name = "Colour";
          DGC.CellTemplate = new DataGridViewTextBoxCell();
          dgPallette.Columns.Add(DGC);
          foreach (DataGridViewRow DGR in dgPallette.Rows)
          {
              Color cellColor = Color.FromArgb(
                  int.Parse(DGR.Cells["Red"].Value.ToString()), 
                  int.Parse(DGR.Cells["Green"].Value.ToString()), 
                  int.Parse(DGR.Cells["Blue"].Value.ToString()));
              DGR.Cells["Colour"].Style.BackColor = cellColor;
          }
  </code></pre>
  
  <p>Any ideas?</p>
  
  <p>Thanks in advance
  Jim</p>