ID单击更新时，GridView不更新

Question

这是我的更新gridview的代码

单击更新时，它不会更新并返回其先前的值，但是删除选项可以正常工作

        Id = ((Label)GridView1.Rows[e.RowIndex].FindControl("lblDealerId")).Text;
        Name = ((TextBox)GridView1.Rows[e.RowIndex].FindControl("txtDealer_Name")).Text;
        Address = ((TextBox)GridView1.Rows[e.RowIndex].FindControl("txtDealer_Address")).Text;
        City = ((TextBox)GridView1.Rows[e.RowIndex].FindControl("txtCity")).Text;
        Pincode = ((TextBox)GridView1.Rows[e.RowIndex].FindControl("txtDealer_Pincode")).Text;

        string cs = ConfigurationManager.ConnectionStrings["dbcs"].ConnectionString;
        SqlConnection con = new SqlConnection(cs);

        SqlCommand cmd = new SqlCommand("sp_update_dealer", con);
        cmd.CommandType = CommandType.StoredProcedure;

        cmd.Parameters.Add("@dealer_id", SqlDbType.NVarChar).Value = Id;
        cmd.Parameters.Add("@dealer_name", SqlDbType.NVarChar).Value = Name;
        cmd.Parameters.Add("@dealer_address", SqlDbType.NVarChar).Value = Address;
        cmd.Parameters.Add("@dealer_city", SqlDbType.NVarChar).Value = City;
        cmd.Parameters.Add("@dealer_pincode", SqlDbType.NVarChar).Value = Pincode;

        //GridView1.EditIndex = -1;
        cmd.Connection = con;
        con.Open();
        cmd.ExecuteNonQuery();
        con.Close();

Answer 1

您的标签lblDealerId也应放在EditTemplate ：

<EditItemTemplate>
    <asp:Label ID="lblDealerId" runat="server" Text='<%# Eval("Id") %>'></asp:Label>
    //.. some other TexBoxes
</EditItemTemplate>