本文实例展示了DevExpress实现GridView当无数据行时提示消息的方法，具体步骤如下：
主要功能代码部分如下：
/// <summary>
/// 设置当没有数据行的提示信息『CustomDrawEmptyForeground』
/// </summary>
/// <param name="gridView">GridView</param>
/// <param name="e">CustomDrawEventArgs</param>
/// <param name="noRecordMsg">提示信息</param>
public static void DrawNoRowCountMessage(this GridView gridView, CustomDrawEventArgs e, string noRecordMsg)
{
if (gridView == null)
throw new ArgumentNullException("gridView");
if (gridView.RowCount == 0)
{
if (!string.IsNullOrEmpty(noRecordMsg))
{
Font _font = new Font("宋体", 10, FontStyle.Bold);
Rectangle _r = new Rectangle(e.Bounds.Left + 5, e.Bounds.Top + 5, e.Bounds.Width - 5, e.Bounds.Height - 5);
e.Graphics.DrawString(noRecordMsg, _font, Brushes.Black, _r);
}
}
}
代码使用方法如下：
private void gvLampTotal_CustomDrawEmptyForeground(object sender, DevExpress.XtraGrid.Views.Base.CustomDrawEventArgs e)
{
gvLampTotal.DrawNoRowCountMessage(e, "暂无符合的数据！");
}
代码运行效果如下：
