如何在 gridview 中只允许一个复选框?

How to allow only one checked box in the gridview?

如果我有一个网格视图包含 checkbox chk_short_day 作为模板字段:

<asp:GridView ID="grv_week_day" runat="server" AutoGenerateColumns="False" 
     CssClass="datatable" OnRowDataBound="grv_week_day_RowDataBound" >
<Columns>
    <asp:TemplateField HeaderStyle-Height="40px" HeaderStyle-Width="200px">
        <HeaderTemplate>
            <h2>week days
            </h2>
        </HeaderTemplate>
        <ItemTemplate>
            <asp:Label ID="lbl_weekday" runat="server" CssClass="title" Text='<%# Bind("WeekDay") %>'></asp:Label>
        </ItemTemplate>
        <HeaderStyle Height="40px" Width="100px"></HeaderStyle>
    </asp:TemplateField>
    <asp:TemplateField HeaderStyle-Height="40px">
        <HeaderTemplate>
            <h2>Attendance Type</h2>
        </HeaderTemplate>
        <ItemTemplate>
            <asp:DropDownList ID="drp_att" runat="server" AutoPostBack="True" Width="200px" Enabled="false"
                CausesValidation="false" OnSelectedIndexChanged="OnSelectedIndexChanged_drp">
            </asp:DropDownList>
        </ItemTemplate>
        <HeaderStyle Height="40px"></HeaderStyle>
    </asp:TemplateField>
    <asp:TemplateField HeaderStyle-Height="40px">
        <HeaderTemplate>
            <h2>From
            </h2>
        </HeaderTemplate>
        <ItemTemplate>
            <asp:Label ID="lbl_From" runat="server"></asp:Label>
        </ItemTemplate>
        <HeaderStyle Height="40px"></HeaderStyle>
    </asp:TemplateField>
    <asp:TemplateField HeaderStyle-Height="40px">
        <HeaderTemplate>
            <h2>To
            </h2>
        </HeaderTemplate>
        <ItemTemplate>
            <asp:Label ID="lbl_To" runat="server"></asp:Label>
        </ItemTemplate>
        <HeaderStyle Height="40px"></HeaderStyle>
    </asp:TemplateField>
    <asp:TemplateField HeaderText="Short Day">
        <ItemTemplate>
            <asp:CheckBox ID="chk_short_day" runat="server" AutoPostBack ="true" OnCheckedChanged="chk_short_day_CheckedChanged"   />
        </ItemTemplate>
    </asp:TemplateField>
</Columns>


如何在gridview中只允许选中一个,如果用户选中其中一个复选框,我想自动取消选中其余的复选框。?

改用单选按钮怎么样?同一组内的单选按钮只能选择一个。

<asp:TemplateField HeaderText="Short Day">
   <ItemTemplate>
       <asp:RadioButton id="rbt_short_day" GroupName="shortDay"/>
   </ItemTemplate>
</asp:TemplateField>