发布网友 发布时间:2022-04-28 13:12
共3个回答
热心网友 时间:2023-10-09 22:37
string id=DropDownList1.SelectedValue.ToString();热心网友 时间:2023-10-09 22:38
<asp:RequiredFieldValidator runat="server" ErrorMessage="RequiredFieldValidator" ControlToValidate="DropDownList1" InitialValue="这个是请选择对应的value">热心网友 时间:2023-10-09 22:38
<asp:RequiredFieldValidator runat="server" ErrorMessage="RequiredFieldValidator" ControlToValidate="DropDownList1" InitialValue="请选择">热心网友 时间:2023-10-09 22:37
string id=DropDownList1.SelectedValue.ToString();热心网友 时间:2023-10-09 22:38
<asp:RequiredFieldValidator runat="server" ErrorMessage="RequiredFieldValidator" ControlToValidate="DropDownList1" InitialValue="这个是请选择对应的value">热心网友 时间:2023-10-09 22:38
<asp:RequiredFieldValidator runat="server" ErrorMessage="RequiredFieldValidator" ControlToValidate="DropDownList1" InitialValue="请选择">