动态添加gridview编辑功能

if (dt != null)
{
gvshow = new GridView();
gvshow.Width = Unit.Pixel(1200);
gvshow.Height = 20;

gvshow.AutoGenerateColumns = false;
// gvshow.RowEditing+=new GridViewEditEventHandler(gvshow_RowEditing);
gvshow.RowCancelingEdit+=new GridViewCancelEditEventHandler(gvshow_RowCancelingEdit);
gvshow.RowEditing += new GridViewEditEventHandler(gvshow_RowEditing);

gvshow.RowDeleting += new GridViewDeleteEventHandler(gvshow_RowDeleting);
gvshow.DataSource = dt;

for (int i = 0; i < dt.Columns.Count; i++)
{

// TemplateColumn tc1 = new TemplateColumn();
//tc1.HeaderTemplate = new GridView(ListItemType.Header, dt.Columns[i].ColumnName.ToString());
//tc1.EditItemTemplate = new GridViewEditEventHandler(gvshow_RowEditing);
//tc1.HeaderText = dt.Columns[i].Caption.ToString();

BoundField bc = new BoundField();
bc.DataField = dt.Columns[i].ColumnName.ToString();
bc.HeaderText = dt.Columns[i].Caption.ToString();
gvshow.Columns.Add(bc);
}



CommandField cf = new CommandField();
cf.ButtonType = ButtonType.Link;
cf.ShowEditButton = true;
cf.CausesValidation = false;
gvshow.Columns.Add(cf);

CommandField cf2 = new CommandField();
cf2.ButtonType = ButtonType.Link;
cf2.ShowDeleteButton = true;
cf2.CausesValidation = false;

gvshow.Columns.Add(cf2);

gvshow.DataBind();
this.PhDataTable.Controls.Add(gvshow);
}