ASP .Net 如何识别 GridView 中的删除按钮？

Question

我有一个带有 ItemTemplate 按钮的 GridView，它使用 RowCommand 函数来执行 SQL。请注意，其中一个具有 CommandName "delete" 来评估按下了哪个按钮。这会导致 GridView 触发 RowDeleting 事件吗？我假设 ASP .Net 认为我创建了一个自定义删除按钮，因此触发了该事件。我不使用该事件，它在尝试触发它时会引发错误，因为它不存在。有没有办法禁用它？

网格视图

        <asp:GridView ID="gv_uebersicht" runat="server" AutoGenerateColumns="False" BackColor="White" BorderColor="#999999" BorderStyle="Solid" BorderWidth="1px" CellPadding="3" ForeColor="Black" GridLines="Vertical" OnRowCommand="gv_uebersicht_RowCommand" OnRowDataBound="gv_uebersicht_RowDataBound" OnRowDeleting="gv_uebersicht_RowDeleting">
            <AlternatingRowStyle BackColor="#CCCCCC" />
            <Columns>
                <asp:BoundField DataField="cockpit_id" HeaderText="cockpitid" />
                <asp:BoundField DataField="lieferant" HeaderText="Lieferant" />
                <asp:BoundField DataField="datei" HeaderText="Dateiname" />
                <asp:BoundField DataField="status" HeaderText="Status" />
                <asp:BoundField DataField="erstellzeit" HeaderText="Erstellzeit" />
                <asp:BoundField DataField="meldung" HeaderText="Meldung" />
                <asp:TemplateField HeaderText="Aktion">
                    <ItemTemplate>
                        <asp:Button ID="btn_delete" runat="server" CommandArgument='<%# Eval("cockpit_id") %>' CommandName='<%# "delete" %>' Text="Löschen" Visible='<%# Eval("status_id").ToString() == "2" || Eval("status_id").ToString() == "14" || Eval("status_id").ToString() == "67" || Eval("status_id").ToString() == "68" || Eval("status_id").ToString() == "999" || Eval("status_id").ToString() == "1" || Eval("status_id").ToString() == "69" %>' />
                        <asp:Button ID="btn_move" runat="server" CommandArgument='<%# Eval("cockpit_id") %>' CommandName='<%# "move" %>' Text="Move" Visible='<%# Eval("status_id").ToString() == "2" || Eval("status_id").ToString() == "14" || Eval("status_id").ToString() == "67" %>' />
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:BoundField DataField="status_id" HeaderText="statusid" />
            </Columns>
            <FooterStyle BackColor="#CCCCCC" />
            <HeaderStyle BackColor="Black" Font-Bold="True" ForeColor="White" />
            <PagerStyle BackColor="#999999" ForeColor="Black" HorizontalAlign="Center" />
            <SelectedRowStyle BackColor="#000099" Font-Bold="True" ForeColor="White" />
            <SortedAscendingCellStyle BackColor="#F1F1F1" />
            <SortedAscendingHeaderStyle BackColor="#808080" />
            <SortedDescendingCellStyle BackColor="#CAC9C9" />
            <SortedDescendingHeaderStyle BackColor="#383838" />
        </asp:GridView>

RowCommand 函数

    protected void gv_uebersicht_RowCommand(object sender, GridViewCommandEventArgs e)
    {
        string commandName = e.CommandName;
        string commandArgument = e.CommandArgument.ToString();

        lbl_msg.Text = "Die Datei " + DatabaseFunctions.GetScalar("SELECT VDB_LS_DATEI FROM VDB_LADESTATUS_COCKPIT WHERE VDB_LS_ID = " + commandArgument) + " wird " + (commandName == "move" ? "gemoved." : "gelöscht.");

        ds.UpdateCommand = @"UPDATE VDB_LADESTATUS_COCKPIT
                            SET VDB_LS_STATUS_ID = 19
                            WHERE VDB_LS_ID = " + commandArgument;
        ds.Update();
        ds.InsertCommand = @"DECLARE
                              V_RC INTEGER;
                            BEGIN
                              V_RC := Val.Loeschen_Freigabe_Funktionen(P_Cockpit_ID => " + commandArgument + @",
                                                                       P_Aktion => '" + commandName + @"');
                            END; ";
        ds.Insert();
        fill_gv_uebersicht();
    }

Answer 1

是的，GridView 触发了RowDeleting 事件，因为按钮的CommandName 是删除。您必须更改您的CommandName 并且必须从您的GridView 控件中删除OnRowDeleting="gv_uebersicht_RowDeleting"。它不会抛出任何错误。