C# RadGrid中的组合框

在插入/更新网格时，我很难在RadGrid中添加组合框。因此，当我的网格进入编辑模式时，我希望显示一个组合框

这是我的aspx页面：

<telerik:radgrid id="radManageMembers" runat="server" cssclass="GridView" width="96%"
    autogeneratecolumns="true" onUpdateCommand="radManageMembers_UpdateCommand" Skin="WebBlue"
    onNeedDataSource="radManageMembers_NeedDataSource" OnDeleteCommand="radManageMembers_DeleteCommand"
    OnInsertCommand="radManageMembers_InsertCommand" OnItemCreated="radManageMembers_ItemCreated" OnItemCommand="radManageMembers_ItemCommand">
    <MasterTableView EditMode="InPlace" AutoGenerateColumns="false"
        TableLayout="Fixed" DataKeyNames="MemberID" CommandItemDisplay="TopAndBottom" Skin="WebBlue">
        <Columns>

            <telerik:GridBoundColumn DataField="MemberID" Display="false">
            </telerik:GridBoundColumn>

            <telerik:GridButtonColumn UniqueName="DeleteColumn" CommandName="Delete" ButtonType="PushButton" Text="Delete">
            </telerik:GridButtonColumn>

            <telerik:GridBoundColumn DataField="MemberName" UniqueName="MemberName" HeaderText="MemberName">
            </telerik:GridBoundColumn>
            <telerik:GridBoundColumn DataField="FirstName" UniqueName="FirstName" HeaderText="FirstName">
            </telerik:GridBoundColumn>
            <telerik:GridBoundColumn DataField="LastName" UniqueName="LastName" HeaderText="LastName" >
            </telerik:GridBoundColumn>                
            <telerik:GridBoundColumn DataField="Title" UniqueName="Title" HeaderText="Title">
            </telerik:GridBoundColumn>
            <telerik:GridBoundColumn DataField="AdditionalNumber" UniqueName="AdditionalNumber" HeaderText="AdditionalNumber">
            </telerik:GridBoundColumn>
            <telerik:GridBoundColumn DataField="Telephone" UniqueName="Telephone" HeaderText="Telephone">
            </telerik:GridBoundColumn>
            <telerik:GridBoundColumn DataField="IDNumber" UniqueName="IDNumber" HeaderText="IDNumber">
            </telerik:GridBoundColumn>
            <telerik:GridBoundColumn DataField="BusinessName" UniqueName="BusinessName" HeaderText="BusinessName">
            </telerik:GridBoundColumn>
            <telerik:GridBoundColumn DataField="Email" UniqueName="Email" HeaderText="Email">
            </telerik:GridBoundColumn>
            <telerik:GridBoundColumn DataField="LanguageCode" UniqueName="LanguageCode" HeaderText="LanguageCode">
            </telerik:GridBoundColumn>     

            <telerik:GridEditCommandColumn ButtonType="PushButton" UniqueName="EditCommandColumn">
                <HeaderStyle Width="85px"></HeaderStyle>
            </telerik:GridEditCommandColumn>

        </Columns>
            <EditFormSettings CaptionFormatString="Edit details for employee with ID {0}" CaptionDataField="EmployeeID">
            <FormTableItemStyle Width="100%" Height="29px"></FormTableItemStyle>
            <FormTableStyle GridLines="None" CellSpacing="0" CellPadding="2"></FormTableStyle>
            <FormStyle Width="100%"></FormStyle>
            <EditColumn ButtonType="ImageButton">
            </EditColumn>
        </EditFormSettings>
    </MasterTableView>
    <ClientSettings>
        <ClientEvents OnRowDblClick="RowDblClick"></ClientEvents>
    </ClientSettings>

我看了一下这里的例子-

但是这个组合框并没有从数据库中填充不同的值，在组合框中似乎存在重复项，我发现这些重复项毫无意义

我很乐意看看是否有其他方法来解决这个问题，或者是解决这个问题的正确方法

编辑

---

ComboBox的值来自数据库，所有值都是唯一的。

在代码中，您没有添加ComboBox。因此，请在EditItemTemplate中添加combobox，并尝试使用以下代码访问combobox

protected void grid1_ItemDataBound(object sender, Telerik.Web.UI.GridItemEventArgs e)
    {
       if (e.Item is GridEditableItem && e.Item.IsInEditMode)
       {
            GridEditableItem item = (GridEditableItem)e.Item;
            RadComboBox combo = ((RadComboBox)item.FindControl("RadComboBoxValore"));
            combo.DataSource = SqlDataSource2;
            combo.DataValueField = "EmployeeID";
            combo.DataTextField = "EmployeeID";
            combo.DataBind();   
        }
    }

---

或者添加GridDropDownColumn

你看过Telerik网站吗？这里有很多很棒的例子。我很惊讶你没有看到Gridview中的ComboBox示例，他们已经在他们的网站上发布了这些示例。我已经看过了，还有一些非常酷的示例。但是我没有遇到一个适合这个要求的例子，除非我是隔墙看的。组合框在哪里？？绑定组合框的代码在哪里？

protected void grid1_ItemDataBound(object sender, Telerik.Web.UI.GridItemEventArgs e)
    {
       if (e.Item is GridEditableItem && e.Item.IsInEditMode)
       {
            GridEditableItem item = (GridEditableItem)e.Item;
            RadComboBox combo = ((RadComboBox)item.FindControl("RadComboBoxValore"));
            combo.DataSource = SqlDataSource2;
            combo.DataValueField = "EmployeeID";
            combo.DataTextField = "EmployeeID";
            combo.DataBind();   
        }
    }