DataGrid经典编辑更新删除代码

private void DataGrid1_EditCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
{
DataGrid1.EditItemIndex=(int)e.Item.ItemIndex;
BindGrid();
}

private void DataGrid1_PageIndexChanged(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e)
{
DataGrid1.CurrentPageIndex=e.NewPageIndex;
BindGrid();
}

private void DataGrid1_DeleteCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
{
SqlCommand cm=new SqlCommand("deleteEmp",mySqlConn);
cm.CommandType=CommandType.StoredProcedure;
cm.Parameters.Add(new SqlParameter("@Empid",SqlDbType.Int,4));
cm.Parameters["@Empid"].Value=DataGrid1.DataKeys[(int)e.Item.ItemIndex];

cm.Connection.Open();
try
{
cm.ExecuteNonQuery();
Label1.Text="删除成功";

}
catch(SqlException)
{
Label1.Text="删除失败";
Label1.Style["color"]="red";
}
cm.Connection.Close();
BindGrid();
}

private void DataGrid1_CancelCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
{
DataGrid1.EditItemIndex=-1;
BindGrid();
}

private void DataGrid1_UpdateCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
{
SqlCommand cm=new SqlCommand("UpdateEmp",mySqlConn);
cm.CommandType=CommandType.StoredProcedure;

cm.Parameters.Add(new SqlParameter("@Email",SqlDbType.VarChar,50));
cm.Parameters.Add(new SqlParameter("@tell",SqlDbType.VarChar,50));
cm.Parameters.Add(new SqlParameter("@jb",SqlDbType.Int,4));
cm.Parameters.Add(new SqlParameter("@Emp_id",SqlDbType.Int,4));
string colvalue=((TextBox)e.Item.Cells[4].Controls[0]).Text;
cm.Parameters["@Email"].Value=colvalue;

colvalue=((TextBox)e.Item.Cells[5].Controls[0]).Text;
cm.Parameters["@jb"].Value=colvalue;
colvalue=((TextBox)e.Item.Cells[6].Controls[0]).Text;
cm.Parameters["@tell"].Value=colvalue;

cm.Parameters["@Emp_id"].Value=DataGrid1.DataKeys[(int)e.Item.ItemIndex];
cm.Connection.Open();
try
{
cm.ExecuteNonQuery();
Label1.Text="编辑成功";
DataGrid1.EditItemIndex=-1;
}
catch(SqlException)
{
Label1.Text="编辑失败";
Label1.Style["color"]="red";
}
cm.Connection.Close();
BindGrid();
}