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How to change the particular cell background color at run time in WinForms DataGrid?
1 min read
WinForms DataGrid (SfDataGrid) provides the support to customize the background color of a single cell at runtime. You can achieve this by maintaining a Dictionary with RowColumnIndex of the cell as Key and the background color as value. Based on the value in the dictionary, QueryCellStyle event set the background color of the cell.
Dictionary<RowColumnIndex, Color> colorDict = new Dictionary<RowColumnIndex, Color>();
this.sfDataGrid.QueryCellStyle += sfDataGrid_QueryCellStyle;
void sfDataGrid_QueryCellStyle(object sender, Syncfusion.WinForms.DataGrid.Events.QueryCellStyleEventArgs e)
{
var rowColumnIndex = new RowColumnIndex(e.RowIndex,e.ColumnIndex);
if (colorDict.ContainsKey(rowColumnIndex))
e.Style.BackColor = colorDict[rowColumnIndex];
}
private void button1_Click(object sender, System.EventArgs e)
{
SetCellBackgroundColor(new RowColumnIndex(1, 0), Color.Red);
}
void SetCellBackgroundColor(RowColumnIndex rowColumnIndex, Color color)
{
if (!colorDict.ContainsKey(rowColumnIndex))
colorDict.Add(rowColumnIndex, color);
else
colorDict[rowColumnIndex] = color;
//Refresh the particular cell
sfDataGrid.TableControl.Invalidate(this.sfDataGrid.TableControl.GetCellRectangle(rowColumnIndex.RowIndex, rowColumnIndex.ColumnIndex, false));
}
