1.显示序号(通用)
#region 序号
public void BindCustomDrawRowIndicator(DevExpress.XtraGrid.Views.Grid.GridView view)
{
view.IndicatorWidth = CalcIndicatorDefaultWidth(view);
view.CustomDrawRowIndicator += (s, e) =>
{
if (e.RowHandle >= 0)
{
e.Info.DisplayText = (e.RowHandle + 1).ToString();
view.Appearance.FocusedRow.BackColor = Color.Empty;
view.Appearance.SelectedRow.BackColor = Color.Empty;
//view.OptionsSelection.EnableAppearanceFocusedCell = true;
//view.OptionsSelection.EnableAppearanceFocusedRow = true;
}
};
view.TopRowChanged += (s, e) =>
{
int width = CalcIndicatorBestWidth(view);
if ((view.IndicatorWidth - 4 < width || view.IndicatorWidth + 4 > width) && view.IndicatorWidth != width)
{
view.IndicatorWidth = width;
view.Appearance.FocusedRow.BackColor = Color.Empty;
view.Appearance.SelectedRow.BackColor = Color.Empty;
//view.OptionsSelection.EnableAppearanceFocusedCell = true;
//view.OptionsSelection.EnableAppearanceFocusedRow = true;
}
};
}
/// <summary>
/// 计算行头宽度
/// </summary>
/// <param name="sender"></param>
/// <returns></returns>
int CalcIndicatorBestWidth(DevExpress.XtraGrid.Views.Grid.GridView view)
{
Graphics graphics = new Control().CreateGraphics();
SizeF sizeF = new SizeF();
int count = view.TopRowIndex + ((DevExpress.XtraGrid.Views.Grid.ViewInfo.GridViewInfo)view.GetViewInfo()).RowsInfo.Count;
if (count == 0)
{
count = 30;
}
sizeF = graphics.MeasureString(count.ToString(), view.Appearance.Row.Font);
return Convert.ToInt32(sizeF.Width) + 20;
}
/// <summary>
/// 计算默认的宽度
/// </summary>
/// <param name="view"></param>
/// <returns></returns>
int CalcIndicatorDefaultWidth(DevExpress.XtraGrid.Views.Grid.GridView view)
{
var grid = view.GridControl;
Graphics graphics = new Control().CreateGraphics();
SizeF sizeF = new SizeF();
int rowHeight = 22;//22是Row的估计高度
if (view.RowHeight > 0)
{
rowHeight = view.RowHeight;
}
int count = grid != null ? grid.Height / rowHeight : 30;
sizeF = graphics.MeasureString(count.ToString(), view.Appearance.Row.Font);
return Convert.ToInt32(sizeF.Width) + 20;
}
#endregion参考
关于DevExpress GridView行头显示行号且根据行号宽度动态自适应显示_涛神-Dev 的博客-CSDN博客_devexpress 行号
调用
2.显示序号
在MainView中添加一个CustomDrawRowIndicator事件，在事件处理器中添加以下代码
if (e.Info.IsRowIndicator && e.RowHandle >= 0)
{
e.Info.DisplayText = e.RowHandle.ToString();
}
修改InDicatorWidth属性 可以修改其宽度
3.是否显示
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