DataGrid 的常用操作

一、DataGrid 的 ItemDataBound事件中怎么获取某列的 HeaderText，如下：
protected void dg_ItemDataBound(object sender, DataGridItemEventArgs e) { if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.EditItem || e.Item.ItemType == ListItemType.AlternatingItem) { DataRowView drv = (DataRowView)e.Item.DataItem; for (int i = 0; i < drv.Row.Table.Columns.Count; i++) { string headerText = drv.Row.Table.Columns[i].ColumnName; } } }

二、ItemDataBound事件中添加序号列，如下：
protected void dg_ItemDataBound(object sender, DataGridItemEventArgs e) { if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.EditItem || e.Item.ItemType == ListItemType.AlternatingItem) { int index = e.Item.ItemIndex + 1; e.Item.Cells[1].Text = index.ToString(); } }

三、DataGrid中动态添加模板列：
实现方式一(缺少HeaderText文字)：
DataRowView drv = (DataRowView)e.Item.DataItem; DataRow dr = drv.Row; int testid = Convert.ToInt32(dr["testid"].ToString()); LinkButton linkbut = new LinkButton(); linkbut.ID = "lbDelete"; linkbut.CommandArgument = testid.ToString(); linkbut.CommandName = "Deleted"; linkbut.OnClientClick = "return confirm('您确定删除记录吗？');"; linkbut.Text = "删除"; TableCell tc = new TableCell(); e.Item.Cells.Add(tc); tc.Controls.Add(linkbut);
实现方式二：
TemplateColumn columnOperator = new TemplateColumn(); columnOperator.HeaderText = "操作"; columnOperator.ItemTemplate = new CLinkButton(); dg.Columns.Add(columnOperator); public class CLinkButton : ITemplate { #region ITemplate 成员 public void InstantiateIn(Control container) { LinkButton linkbut = new LinkButton(); linkbut.ID = "lbDelete"; linkbut.CommandName = "Deleted"; linkbut.OnClientClick = "return confirm('您确定删除记录吗？');"; linkbut.Text = "删除"; container.Controls.Add(linkbut); } #endregion }