Question

GridView行更新事件不会更新数据库，但也不会引发错误，它什么都不做

我使用的是Visual Studio 2015和SQL Server 2014，我编写了代码以在项目的另一种表单上执行所需的代码，因此我决定将现有代码复制并粘贴到新页面上，但是我开始遇到错误，已经令人惊讶，因为它的副本和原始文件工作正常，但我修复了这些问题，但更新按钮仍然没有更改数据库

protected void GridView2_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
    // Finding the controls from Gridview for the row which is going to update 
    Label id =(Label)GridView1.Rows[e.RowIndex].FindControl("lbl_ID") as Label;
    TextBox Plate = (TextBox)GridView1.Rows[e.RowIndex].FindControl("txt_Plate") as TextBox;
    TextBox Make = (TextBox)GridView1.Rows[e.RowIndex].FindControl("txt_Make") as TextBox;
    TextBox Model = (TextBox)GridView1.Rows[e.RowIndex].FindControl("txt_Model") as TextBox;
    TextBox Description = (TextBox)GridView1.Rows[e.RowIndex].FindControl("txt_Description") as TextBox;
    TextBox Route = (TextBox)GridView1.Rows[e.RowIndex].FindControl("txt_Route") as TextBox;

    string ID = id.Text;
    string plate = Plate.Text;
    string make = Make.Text;
    string model = Model.Text;
    string Desc = Description.Text;
    string route = Route.Text;

    SqlConnection con = new SqlConnection("Data Source = SHIREDOCKS\\SQLEXPRESS; Initial Catalog = JerichoCarPark; Integrated Security = True");

    con.Open();

    // updating the record  
    SqlCommand cmd = new SqlCommand("VehicleUpdate", con);
    cmd.CommandType = CommandType.StoredProcedure;

    cmd.Parameters.AddWithValue("VehicleID", ID);
    cmd.Parameters.AddWithValue("VehiclePlateNo", plate);
    cmd.Parameters.AddWithValue("VehicleMake", make);
    cmd.Parameters.AddWithValue("VehicleModel", model);
    cmd.Parameters.AddWithValue("VehicleDescription", Desc);
    cmd.Parameters.AddWithValue("JTARoute",route);

    cmd.ExecuteNonQuery();

    con.Close();

    // Setting the EditIndex property to -1 to cancel the Edit mode in Gridview  
    GridView1.EditIndex = -1;

    // Call ShowData method for displaying updated data  
    ShowData();
}

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" BackColor="#CCCCCC" BorderColor="Yellow" BorderStyle="Solid" BorderWidth="5px" CellPadding="6" Font-Names="Kozuka Gothic Pro B" style="z-index: 3; left: 322px; top: 112px; position: absolute; height: 470px; width: 1167px" OnRowCancelingEdit="GridView2_RowCancelingEdit" OnRowDeleting="GridView2_RowDeleting" OnRowEditing="GridView2_RowEditing" OnRowUpdating="GridView2_RowUpdating">
             <AlternatingRowStyle BackColor="#99CCFF" />
                <Columns>
                    <asp:TemplateField>
                        <ItemTemplate>
                             <asp:Button ID="btn_Edit" runat="server" CommandName="Edit" Text="Edit" BackColor="#3366FF"  Font-Names="Century Gothic" ForeColor="White" Font-Size="Medium"  BorderStyle="Solid" CausesValidation="True" UseSubmitBehavior="False" />
                             </ItemTemplate>
                        <EditItemTemplate>

                            <asp:Button ID="btn_Update" runat="server" CommandName="Update" Text="Update" BackColor="#3366FF"  Font-Names="Century Gothic" ForeColor="White" BorderStyle="Solid" UseSubmitBehavior="False"/>
                            <br></br>
                            <asp:Button ID="btn_Cancel" runat="server" CommandName="Cancel" Text="Cancel" BackColor="#3366FF"  Font-Names="Century Gothic" ForeColor="White" BorderStyle="Solid" UseSubmitBehavior="False" />
                            <br></br>
                            <asp:Button ID="btn_Delete" runat="server" CommandName="Delete" Text="Delete" BackColor="#3366FF"  Font-Names="Century Gothic" ForeColor="White" BorderStyle="Solid" UseSubmitBehavior="False" />
                        </EditItemTemplate>
                    </asp:TemplateField>

存储过程：

ALTER PROCEDURE [dbo].[VehicleUpdate]
    @VehicleID VARCHAR(50) = '',
    @VehiclePlateNo VARCHAR(6) = '',
    @VehicleMake VARCHAR(20) = '',
    @VehicleModel VARCHAR(50) = '',
    @VehicleDescription VARCHAR(225) = '',
    @JTARoute VARCHAR(20) = ''
AS
BEGIN
    UPDATE Vehicles
    SET [VehiclePlateNo] = (@VehiclePlateNo),
        [VehicleMake] = (@VehicleMake),
        [VehicleModel] = (@VehicleModel),
        [VehicleDescription] = (@VehicleDescription),
        [JTARoute] = (@JTARoute)
    WHERE [VehicleID] = @VehicleID
END

我希望它像原始页面一样更新数据库，但是它只是重新加载并显示未更新的表

GridView更新命令不更新数据库，但不引发错误

0 个答案: