Question

这是我的cs：

protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
        {
            SqlConnection con = Connection.DBconnection();
            if (e.CommandName == "EditRow")
            {
                GridViewRow gr = (GridViewRow)((Button)e.CommandSource).NamingContainer;               
                Textid.Text = gr.Cells[0].Text;
                Textusername.Text = gr.Cells[1].Text;
                Textclass.Text = gr.Cells[2].Text;
                Textsection.Text = gr.Cells[3].Text;
                Textaddress.Text = gr.Cells[4].Text;
            }
            else if (e.CommandName == "Deleterow")
            {
                GridViewRow gr = (GridViewRow)((Button)e.CommandSource).NamingContainer;      
                SqlCommand com = new SqlCommand("StoredProcedure4", con);
                com.CommandType = CommandType.StoredProcedure;
                com.Parameters.AddWithValue("@ID", gr.Cells[0].Text);
                var id = Int32.Parse(e.CommandArgument.ToString());
                GridView1.DeleteRow(id);
                com.ExecuteNonQuery();

            }
        }

我创建了学生详细信息表单，我想删除gridview中的行。

当我点击删除时，它会显示以下错误：

数据源＆＃39; SqlDataSource1＆＃39;不支持删除。除非指定了DeleteCommand。

我是.net的新手。现在开始，

我可以知道，上述代码中的错误是什么？

谢谢，

Answer 1

    else if (e.CommandName == "Deleterow")
    {
        GridViewRow gr = (GridViewRow)((Button)e.CommandSource).NamingContainer;      
        SqlCommand com = new SqlCommand("StoredProcedure4", con);
        com.CommandType = CommandType.StoredProcedure;
        com.Parameters.AddWithValue("@ID", gr.Cells[0].Text);
        var id = Int32.Parse(e.CommandArgument.ToString());
        //comment or remove below line
        //GridView1.DeleteRow(id);
        com.ExecuteNonQuery();
        //rebind the data after delete
        GridView1.DataBind();
    }

数据源＆＃39; SqlDataSource1＆＃39;不支持删除。在c＃中

1 个答案: