asp.net - 循环遍历复选框列表

Question

我正在构建一个复选框列表:

<asp:CheckBoxList ID="CheckBoxes" DataTextField="Value" DataValueField="Key" runat="server"></asp:CheckBoxList>

并尝试获取所选项目的值:

List<Guid> things = new List<Guid>();
foreach (ListItem item in this.CheckBoxes.Items)
{
    if (item.Selected)
        things.Add(item.Value);
    }
}

我收到错误

"The best overloaded method match for 'System.Collections.Generic.List.Add(System.Guid)' has some invalid arguments "

Answer 1

“事物”列表不包含 Guid 值。您应该将 item.value 转换为 Guid 值:

List<Guid> things = new List<Guid>();
foreach (ListItem item in this.CheckBoxes.Items)
{
  if (item.Selected)
    things.Add(new Guid(item.Value));
}