打开表单标签无法识别

Question

我使用webmatrix 3创建ASP.NET网页，其中一个页面有一个表单开始和结束标记，但每当我启动此页面时，我在浏览器中收到服务器错误告诉我，结束</form>标签没有开始标记，但我仔细检查了，IDE（webmatrix 3）没有显示任何错误。我相信我错过了一些东西，但这里是代码。注意：这不是整个文件，只是html <form>部分。

<form method="post" action="">
        <fieldset style="margin-right: 210px">
            <legend><strong>Fill in the form to register an employee.</strong></legend>
                <table style=" border: 0px;">
                    <tr>
                    <td style="text-align: right; border: 0px;"></td>
                    <td style="border: 0px;"></td>
                  </tr>
                    <tr>
                    <td style="text-align: right; border: 0px;"><label for="employee_ssn">Employee's SSN: </label></td>
                    <td style="border: 0px;"><input type="text" size="50px" name="employee_ssn" value=""></td>
                  </tr>
                    <tr>
                    <td style="text-align: right; border: 0px;"><label for="first_name">First Name: </label></td>
                    <td style="border: 0px;"><input type="text" size="50px" name="first_name" value=""></td>
                  </tr>
                    <tr>
                    <td style="text-align: right; border: 0px;"><label for="middle_name">Middle Name: </label></td>
                    <td style="border: 0px;"><input type="text" size="50px" name="middle_name" value=""></td>
                  </tr>
                    <tr>
                    <td style="text-align: right; border: 0px;"><label for="last_name">Last Name: </label></td>
                    <td style="border: 0px;"><input type="text" size="50px" name="last_name" value=""></td>
                  </tr>
                    <tr>
                    <td style="text-align: right; border: 0px;"><label for="dob">Date Of Birth: </label></td>
                    <td style="border: 0px;"><input type="date" size="50px" name="dob" value=""></td>
                  </tr>
                    <tr>
                    <td style="text-align: right; border: 0px;"><label for="gender">Gender: </label></td>
                    <td style="border: 0px;"><input type="radio" name="sex" value="male">Male<br>
                                             <input type="radio" name="sex" value="female">Female</td>
                  </tr>

                    <tr>
                    <td style="text-align: right; border: 0px;"><label for="blood_type">Blood Type: </label></td>
                    <td style="border: 0px;"><select name="blood_type">
                        <option value="AB+">AB+</option>
                        <option value="AB-">AB-</option>
                        <option value="A+">A+</option>
                        <option value="A-">A-</option>
                        <option value="B+">B+</option>
                        <option value="B-">B-</option>
                        <option value="O">O</option>
                    </select></td>
                  </tr>
                    <tr>
                    <td style="text-align: right; border: 0px;"><label for="phone">Telephone Number: </label></td>
                    <td style="border: 0px;"><input type="text" size="50px" name="phone" value=""></td>
                  </tr>
                    <tr>
                    <td style="text-align: right; border: 0px;"><label for="mobile">Mobile Number: </label></td>
                    <td style="border: 0px;"><input type="text" size="50px" name="mobile" value=""></td>
                  </tr>
                    <tr>
                    <td style="text-align: right; border: 0px;"><label for="address">Address: </label></td>
                    <td style="border: 0px;"><input type="text" size="50px" name="address" value=""></td>
                  </tr>
                    <tr>
                    <td style="text-align: right; border: 0px;"><label for="email">e-mail Address: </label></td>
                    <td style="border: 0px;"><input type="text" size="50px" name="email" value=""></td>
                  </tr>
                    <tr>
                    <td style="text-align: right; border: 0px;"><label for="job">Occupation: </label></td>
                    <td style="border: 0px;"><input type="text" size="50px" name="job" value=""></td>
                  </tr>
                    <tr>
                    <td style="text-align: right; border: 0px;"><label for="spec_degree">Specialization Degree: </label></td>
                    <td style="border: 0px;"><input type="text" size="50px" name="spec_degree" value=""></td>
                  </tr>
                    <tr>
                    <td style="text-align: right; border: 0px;"><label for="depatment">Department: </label></td>
                    <td style="border: 0px;"><input type="text" size="50px" name="depatment" value=""></td>
                  </tr>
                    <tr>
                    <td style="text-align: right; border: 0px;"><label for="nationality">Nationality: </label></td>
                    <td style="border: 0px;"><input type="text" size="50px" name="nationality" value=""></td>
                  </tr>
                    </tr>
                    <tr>
                    <td style="text-align: right; border: 0px;"><label for="working_hours">Working Hours: </label></td>
                    <td style="border: 0px;"><input type="text" size="50px" name="working_hours" value=""></td>
                  </tr>
                    <tr>
                    <td style="text-align: right; border: 0px;"><label for="emergency_contact">Emergency Contact: </label></td>
                    <td style="border: 0px;"><input type="text" size="50px" name="emergency_contact" value=""></td>
                  </tr>
                    <tr>
                    <td style="text-align: right; border: 0px;"><label for="pwd">Password: </label></td>
                    <td style="border: 0px;"><input type="password" size="50px" name="pwd" value=""></td>
                  </tr>
                    <tr>
                    <td style="text-align: right; border: 0px;"><label for="confirm_pwd">Confirm Password: </label></td>
                    <td style="border: 0px;"><input type="password" size="50px" name="confirm_pwd" value=""></td>
                  </tr>
                    <tr>
                    <td style="text-align: right; border: 0px;"><label for="notes">Notes: </label></td>
                    <td style="border: 0px;"><textarea name="notes"></textarea></td>
                  </tr>
                    <tr>
                    <td style="border: 0px;">&nbsp;&nbsp;&nbsp;&nbsp;<input type="submit" value=" Register"/></td>
                    </tr>

                </table>
        </fieldset>
    </form>