asp.net – Telerik RadGrid具有不同类型的编辑控件

问题：
在项目创建的处理程序中,为什么有4个单元格？我必须填写单元格[2]和单元格[3]以显示值.我将AutoGenerateColumns设置为false,我只有两个GridTemplateColumn定义.

为什么item.RowIndex会被两个人包含并最多二十个？当我有10行.

有一个更好的方法吗？

这是我如何声明网格：

<telerik:RadGrid runat="server" ID="Grid1" Width="100%" Height="500px" GridLines="None" AutoGenerateColumns="false"
        OnItemCreated="OnGridItemCreated"
        OnNeedDataSource="OnGridNeedDataSource">
        <ItemStyle Wrap="true" />
        <AlternatingItemStyle Wrap="true" />
        <ClientSettings>                    
            <Selecting AllowRowSelect="false" />
            <Scrolling AllowScroll="true" UseStaticHeaders="true" />
            <Resizing AllowColumnResize="true" ClipCellContentOnResize="true" ResizeGridOnColumnResize="true" EnableRealTimeResize="true" />
        </ClientSettings>
        <MasterTableView>
            <NoRecordsTemplate>
                <asp:Label ID="lblNorec1" runat="server" Text="No records"></asp:Label>
            </NoRecordsTemplate>
            <Columns>
                <telerik:GridTemplateColumn UniqueName="FieldDisplayName" HeaderText="Field Name">
                    <ItemTemplate>
                    </ItemTemplate>
                </telerik:GridTemplateColumn>
                <telerik:GridTemplateColumn UniqueName="FieldValue" HeaderText="Value">
                    <ItemTemplate>
                    </ItemTemplate>
                </telerik:GridTemplateColumn>
            </Columns>
        </MasterTableView>
    </telerik:RadGrid>

/

/ grid needs datasource
    protected void OnGridNeedDataSource(object source,GridNeedDataSourceEventArgs e)
    {
        // create a DataSource
        DataSet ds = new DataSet();
        DataTable dt = new DataTable();
        dt.Columns.Add(new DataColumn("Field_Display_Name"));
        dt.Columns.Add(new DataColumn("Field_Value"));

    for (int i = 0; i < 10; ++i)
    {
        DataRow dr = dt.NewRow();
        dr["Field_Display_Name"] = "Item Id" + i.ToString();
        dr["Field_Value"] = "Value" + i.ToString();
        dt.Rows.Add(dr);
    }

    ds.Tables.Add(dt);
    Grid1.DataSource = ds;
}

// grid item is created
protected void OnGridItemCreated(object sender,GridItemEventArgs e)
{
    if (e.Item is GridDataItem)
    {
        GridDataItem item = (GridDataItem)e.Item;

       // fill in cells 2 and 3. Why are there 4?

        Label lbl = new Label();
        lbl.Text = "Field " +  item.RowIndex;
        item.Cells[2].Controls.Add(lbl);

        switch (item.RowIndex)
        {
            case 2:
            case 8:
                RadTextBox txt = new RadTextBox();
                txt.ID = "RadTextBox1";
                txt.Text = "hello " + item.RowIndex;
                item.Cells[3].Controls.Add(txt);
                break;
            case 4:
            case 10:
                RadDatePicker dp = new RadDatePicker();
                dp.ID = "RadDatePicker1";
                dp.SelectedDate = DateTime.Now;
                item.Cells[3].Controls.Add(dp);
                break;
            case 6:
            case 12:
                CheckBox cb = new CheckBox();
                item.Cells[3].Controls.Add(cb);
                break;
            default:
                Label lbl2 = new Label();
                lbl2.Text = "Value " +  item.RowIndex;
                item.Cells[3].Controls.Add(lbl2);
                break;
        }
    }
}

alt text http://img193.imageshack.us/img193/1254/customgrid.png