如何过滤Telerik的RadGrid的GridTemplateColumns

Question

我有两个GridTemplateColumn在我的RadGrid.默认过滤对我不起作用,我想更改它.

GridTemplateColumns如下所示:

<telerik:GridTemplateColumn FilterControlAltText="Filter Online column" HeaderText="Online"
    UniqueName="Online">
    <ItemTemplate>
        <asp:CheckBox ID="chkOnline" runat="server" Checked='<%# CheckForOnline(Eval("ID")) %>'
            Enabled="False" />
    </ItemTemplate>
    <HeaderStyle HorizontalAlign="Center" VerticalAlign="Middle" />
    <ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" Width="100px" />
</telerik:GridTemplateColumn>

另一个:

<telerik:GridTemplateColumn FilterControlAltText="Filter FileSize column" HeaderText="FileSize"
    UniqueName="FileSize" Visible="False">
    <ItemTemplate>
        <asp:Label ID="lblFileSize" runat="server" Text='<%# Eval("FileSize") %>'></asp:Label>
    </ItemTemplate>
    <HeaderStyle HorizontalAlign="Center" VerticalAlign="Middle" />
    <ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" />
</telerik:GridTemplateColumn>
<telerik:GridTemplateColumn FilterControlAltText="Filter FileSizeChange column" HeaderText="FileSize"
    UniqueName="FileSizeChange">
    <ItemTemplate>
        <asp:Label ID="lblFileSizeChange" runat="server" Text='<%# ChangeFileSize(Eval("FileSize")) %>'></asp:Label>
    </ItemTemplate>
    <HeaderStyle HorizontalAlign="Center" VerticalAlign="Middle" />
    <ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" />
</telerik:GridTemplateColumn>

如您所见,FileSize TemplateColumn已禁用,而我正在使用FileSizeChange.

FileSize字符串就像(213435) - >这个数字显示了我们的字节数.FileSizeChange就像(231 MB)/

如何为s Online和FileSizeChange GridTemplateColumns 编写过滤？

Answer 1

要在模板列上使用过滤,您需要设置DataField并将数据字段添加到DataKeyNames

例如:

<telerik:RadGrid ID="RadGrid1" runat="server" AutoGenerateColumns="false" AllowFilteringByColumn="True">
    <MasterTableView DataKeyNames="ID">
        <Columns> 
            <telerik:GridTemplateColumn DataField="ID" FilterControlAltText="Filter Online column" HeaderText="Online" UniqueName="Online">
                <ItemTemplate>
                    <asp:CheckBox ID="chkOnline" runat="server" Checked='<%# CheckForOnline(Eval("ID")) %>' Enabled="False" />
                </ItemTemplate>
                <HeaderStyle HorizontalAlign="Center" VerticalAlign="Middle" />
                <ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" Width="100px" />
            </telerik:GridTemplateColumn>
...
etc, etc