学期验证
用MaskedEditExtender 做学期验证
格式像2008-2009 只能是数字,且后面的年份大于前面的年份
用下面的语句总是格式不对,大侠帮我看看,后面的年份大于前面的年份没懂得写
<asp:TextBox ID="txtname" runat="server"></asp:TextBox>
<cc1:MaskedEditExtender ID="MaskedEditExtender1" runat="server" TargetControlID="txtname"
OnFocusCssClass="MaskedEditFocus" Mask="9999-9999"
OnInvalidCssClass="MaskedEditError" MaskType="number"></cc1:MaskedEditExtender>
<cc1:MaskedEditValidator ID="MaskedEditValidator1" runat="server" ControlExtender="MaskedEditExtender1" ControlToValidate="txtname" IsValidEmpty="False"
EmptyValueMessage="不允许为空"
InvalidValueMessage="格式不对" TooltipMessage="输入学期" Display="Dynamic"></cc1:MaskedEditValidator>