How to change the particular cell background color at run time in Windows Forms DataGrid?

About the sample

This example illustrates to change the particular cell background color at run time in Windows Forms DataGrid.

WinForms DataGrid (SfDataGrid) provides the support to customize the background color of a single cell at run time. 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));
 }

Requirements to run the demo

Visual Studio 2015 and above versions