How to Show ToolTip with Image and Text in WinForms DataGrid?

This sample illustrates that how to show ToolTip with image and text in WinForms DataGrid (SfDataGrid).

By default, the Tooltip for grid cells will be loaded with CellValue text. To add image in tooltip with existing text, the ToolTipOpening event can be used. In that event, the ToolTipInfo for the items can be updated with image.

//Event subscription
this.sfDataGrid1.ToolTipOpening += SfDataGrid1_ToolTipOpening;

//Event customization
private void SfDataGrid1_ToolTipOpening(object sender, ToolTipOpeningEventArgs e)
{
    var record = e.Record as OrderInfo;

    e.ToolTipInfo.Items.AddRange(new ToolTipItem[] { toolTipItem1, toolTipItem2 });

    var recordIndex = this.sfDataGrid1.TableControl.ResolveToRowIndex(record);

    if (e.RowIndex == recordIndex)
    {
        if (record.CustomerID == "FRANS")
        {
            e.ToolTipInfo.Items[1].Text = "FRANS";                        
            e.ToolTipInfo.Items[0].Image = Image.FromFile(@"../../Images/FRANS.png");
        }
    }
}