只是验证Web表单并获得以下错误 外翻工作正常,直到第34行,当我编译和得到这个错误。有没有在我的IDE 我已经运行调试,并不能产生或看到任何无效编译错误没有相关的源行
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Student Registration Form</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h3>Student Form</h3>
<table>
<tr>
<td>First Name</td>
<td>
<asp:TextBox ID="txtFirstName" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="rfvFirstName" runat="server" ErrorMessage="Enter your First Name" ControlToValidate="txtFirstName" ValidationGroup="Submit"></asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td>Last Name</td>
<td>
<asp:TextBox ID="txtLastName" runat="server"></asp:TextBox></td>
<asp:RequiredFieldValidator ID="rfvTxtLastName" runat="server" ErrorMessage="please enter your surname" ControlToValidate=" txtLastName" ValidationGroup="submit"></asp:RequiredFieldValidator>
</tr>
<tr>
<td>Email</td>
<td>
<asp:TextBox ID="txtEmail" runat="server"></asp:TextBox></td>
<asp:RegularExpressionValidator ID="revtxtEmail" runat="server" ErrorMessage="invalid Email Format" ControlToValidate="txtEmail" ValidationGroup="submit" ValidationExpression="^([\w\.\-]+)@([\w\-]+)((\.(\w){2,3})+)$"></asp:RegularExpressionValidator>
</tr>
<tr>
<td>Subjects Available</td>
<td>
<asp:ListBox ID="ltbSubjectsAvailable" runat="server"></asp:ListBox>
</td>
</tr>
<tr>
<td>Subjects Selected</td>
<td>
<asp:ListBox ID="ltbSubjectsSelected" runat="server"></asp:ListBox></td>
</tr>
<tr>
<td>Password</td>
<td>
<asp:TextBox ID="txtPassword" TextMode="Password" runat="server"></asp:TextBox></td>
<asp:RequiredFieldValidator ID="rfvTxtPassword" runat="server" ErrorMessage="Please enter password" ControlToValidate="txtPassword" ValidationGroup="Submit"></asp:RequiredFieldValidator>
</tr>
<tr>
<td>Confirm Password</td>
<td>
<asp:TextBox ID="txtPasswordChange" TextMode="Password" runat="server"></asp:TextBox></td>
<asp:CompareValidator ID="cpvChangePassword" runat="server" ErrorMessage="Passwords do not match" ControlToValidate=" textPasswordChange" ControlToCompare="txtPassword"></asp:CompareValidator>
</tr>
<tr>
<td>
<asp:Button ID="btnSubmit" runat="server" ValidationGroup="Submit" Text="Button" /></td>
</tr>
</table>
</div>
</form>
</body>
</html>
把实际的错误文本的问题,而不是一个截图 - 使其成为一个痛苦的复制/粘贴。除了错误消息告诉你修复错误的方法之一。在谷歌的错误消息 – user1666620
第一结果http://stackoverflow.com/questions/31868803/error-invalid-option-6-for-langversion-must-be-iso-1-iso-2-3-4-5或者 - 德发 – user1666620