“asp.net”;比较验证器“;验证
我正在尝试使用比较验证器验证asp.net中的“asp.net”;比较验证器“;验证,asp.net,textbox,comparevalidator,Asp.net,Textbox,Comparevalidator,我正在尝试使用比较验证器验证asp.net中的fromdate&todate文本框 我的剧本是: <table><tr><td> <asp:ScriptManager ID="ScriptManager1" runat="server"> </asp:ScriptManager> <asp:Label ID="Label1" runat="server" Text="Fromdate:"> <
fromdate
&todate
文本框
我的剧本是:
<table><tr><td>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:Label ID="Label1" runat="server" Text="Fromdate:"> </asp:Label>
<asp:TextBox ID="fromdatetxt" runat="server" Height="21px" Width="103px" ></asp:TextBox>
<ajaxToolkit:CalendarExtender ID="fromdatetxt_CalendarExtender" runat="server"
Enabled="True" TargetControlID="fromdatetxt">
</ajaxToolkit:CalendarExtender>
</td>
<td>
<asp:Label ID="Label2" runat="server" Text="Todate:"></asp:Label>
<asp:TextBox ID="todatetxt" runat="server" Height="21px" Width="105px" ></asp:TextBox>
<ajaxToolkit:CalendarExtender ID="todatetxt_CalendarExtender" runat="server"
Enabled="True" TargetControlID="todatetxt">
</ajaxToolkit:CalendarExtender>
</td>
<asp:CompareValidator ID="CompareValidatorDate" runat="server" ControlToCompare="todatetxt"
ControlToValidate="fromdatetxt" Display="None" ErrorMessage="From date cannot be greaterthan To date"
operator = "LessThanEqual" Type="Date" ValidationGroup="DateValidation"></asp:CompareValidator>
<td>
<asp:Button ID="Button1" runat="server" Text="Submit" onclick="Button1_Click" ValidationGroup="DateValidation" />
<asp:ValidationSummary ID="ValidationSummaryDate" ShowMessageBox="true" ShowSummary="False"
ValidationGroup="DateValidation" runat="server" /></td></tr></table>
</asp:Panel>
这很好用!但我只有在单击按钮时才会收到消息框。但我想在我单击日历控件中的Todate
中的日期时获得消息框,并且文本框必须清除。请帮助我。在验证器中添加Display=“Dynamic”
<asp:CompareValidator ID="CompareValidatorDate" runat="server" ControlToCompare="todatetxt"
ControlToValidate="fromdatetxt" Display="Dynamic" ErrorMessage="From date cannot be greaterthan To date"
Operator="LessThanEqual" Type="Date" ValidationGroup="DateValidation"></asp:CompareValidator>
您可以使用javascript的“Page\u ClientValidate”功能和CalendarExtender的“OnClientDateSelectionChanged”事件解决问题 您不需要更改您的CompareValidator,即
<asp:CompareValidator ID="CompareValidatorDate" runat="server" ControlToCompare="todatetxt"
ControlToValidate="fromdatetxt" Display="None" ErrorMessage="From date cannot be greater than To date"
Operator="LessThanEqual" Type="Date" ValidationGroup="DateValidation"></asp:CompareValidator>
您需要将OnClientDateSelectionChanged事件添加到您的CalendarExtender中
<ajaxtoolkit:CalendarExtender id="todatetxt_CalendarExtender" runat="server" enabled="True"
targetcontrolid="todatetxt" OnClientDateSelectionChanged="validate" >
“验证”这里是一个javascript函数。在该函数中,您需要使用javascript的“Page\u ClientValidate”方法作为
var validate = function () {
var isValid = Page_ClientValidate("DateValidation"); //parameter is the validation group
if (!isValid) {
$("#<%= todatetxt.ClientID %>").val(''); //jquery to clear the textbox
}
}
var validate=函数(){
var isValid=Page_ClientValidate(“DateValidation”);//参数是验证组
如果(!isValid){
$(“#”).val(“”)//jquery清除文本框
}
}
您可以根据自己的方便修改“验证”功能
我希望这有帮助
问候,
萨马尔谢谢你的回答!但请帮助我如何清除弹出消息后的文本框!没问题。很高兴我能帮忙。:)