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將數據綁定到dropdownlist控件,這是我的gridview asp.net的edittemplate,但數據源在代碼后面

[英]Binding data to dropdownlist control which is an edittemplate for my gridview asp.net but the datasource is in code behind

所以我有一個gridview:

<asp:GridView ID="gvExamSched" runat="server" AutoGenerateColumns="False" CellPadding="4" DataSourceID="SqlDataSource1" ForeColor="#333333" GridLines="None" PageSize="30" Width="1030px" AllowSorting="True" AllowPaging="True" OnRowDataBound="gvExamSched_RowDataBound">
                    <AlternatingRowStyle BackColor="White" />
                    <Columns>
                        <asp:BoundField DataField="ID" HeaderText="ID" SortExpression="ID" ItemStyle-Width="10%" ReadOnly="true"/>
                        <asp:BoundField DataField="FIRST_NAME" HeaderText="FIRST_NAME" SortExpression="FIRST_NAME" ReadOnly="true" />
                        <asp:BoundField DataField="MIDDLE_NAME" HeaderText="MIDDLE_NAME" SortExpression="MIDDLE_NAME" ReadOnly="true"/>
                        <asp:BoundField DataField="LAST_NAME" HeaderText="LAST_NAME" SortExpression="LAST_NAME" ReadOnly="true"/>
                        <asp:BoundField DataField="EXTN" HeaderText="EXTN" SortExpression="EXTN" ReadOnly="true"/>
                        <asp:BoundField DataField="OR #" HeaderText="OR #" SortExpression="OR #" />
                        <asp:BoundField DataField="DATE" HeaderText="DATE" SortExpression="DATE" ItemStyle-Width="15%" />
                        <asp:TemplateField HeaderText="TIME_FROM" SortExpression="TIME_FROM">
                            <EditItemTemplate>
                                <asp:DropDownList ID="ddlTimeFrom" runat="server" Width="80px"></asp:DropDownList>
                            </EditItemTemplate>
                            <ItemTemplate>
                                <asp:Label ID="Label1" runat="server" Text='<%# Bind("TIME_FROM") %>'></asp:Label>
                            </ItemTemplate>
                        </asp:TemplateField>
                        <asp:BoundField DataField="TIME_TO" HeaderText="TIME_TO" SortExpression="TIME_TO" />
                        <asp:BoundField DataField="ROOM" HeaderText="ROOM" SortExpression="ROOM" />
                        <asp:CommandField ShowEditButton="True" />
                    </Columns>
                    <EditRowStyle BackColor="#7C6F57" />
                    <FooterStyle BackColor="#1C5E55" Font-Bold="True" ForeColor="White" />
                    <HeaderStyle BackColor="#1C5E55" Font-Bold="True" ForeColor="White" />
                    <PagerStyle BackColor="#666666" ForeColor="White" HorizontalAlign="Center" />
                    <RowStyle BackColor="#E3EAEB" />
                    <SelectedRowStyle BackColor="#C5BBAF" Font-Bold="True" ForeColor="#333333" />
                    <SortedAscendingCellStyle BackColor="#F8FAFA" />
                    <SortedAscendingHeaderStyle BackColor="#246B61" />
                    <SortedDescendingCellStyle BackColor="#D4DFE1" />
                    <SortedDescendingHeaderStyle BackColor="#15524A" />
                </asp:GridView>

現在dropdownlist(ddlTimeFrom)它的數據來自代碼behin(c#),這是:

private void BindTime()
    {
        DateTime StartTime = DateTime.ParseExact("00:00", "HH:mm", null);
        DateTime EndTime = DateTime.ParseExact("23:55", "HH:mm", null);
        TimeSpan Interval = new TimeSpan(0,5,0);
        ddlTimeFrom.Items.Clear();
        ddlTimeTo.Items.Clear();

        while (StartTime <= EndTime)
        {
            ddlTimeFrom.Items.Add(StartTime.ToShortTimeString());
            ddlTimeTo.Items.Add(StartTime.ToShortTimeString());
            StartTime = StartTime.Add(Interval);
        }
        ddlTimeFrom.Items.Insert(0, new ListItem("--Select--", "0"));
        ddlTimeTo.Items.Insert(0, new ListItem("--Select--", "0"));
    }

起初我沒有使用gridview所以我傾向於在page_load中為下拉列表中的項目調用BindTime()但是現在我需要使用gridview編輯它但我不知道怎么樣......它甚至可能嗎? 如果它不是那么我猜我只需要每次手動放置物品......提前謝謝!

處理GridView RowEditing事件並在那里執行自定義邏輯。 有關詳細信息,請參閱此內容: Gridview行編輯 - 動態綁定到DropDownList

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