引入css及js

<asp:TextBox ID="tb_startTime" runat="server" CssClass="Wdate" οnclick="WdatePicker({dateFmt:'yyyy-MM-dd',readOnly:true,maxDate:'#F{$dp.$D(\'tb_endTime\')}'})" />-

<asp:TextBox ID="tb_endTime" runat="server" CssClass="Wdate" οnclick="WdatePicker({dateFmt:'yyyy-MM-dd',readOnly:true,minDate:'#F{$dp.$D(\'tb_startTime\')}'})"></asp:TextBox>

下载地址

链接：https://pan.baidu.com/s/1VBQ5k17cxWv4qVsfJpTPZQ 密码：8w28