Question

如何检查validationMessageFor是否为空？

@using (Html.BeginForm("ProfileSetting", "Home", FormMethod.Post, new { @id = "ProfileSetting" }))
    {
        <div class="container">

            <button type="button" id="btn1" class="btn btn-primary btn-lg">Edit</button><br />
            @Html.Label("Username : ")
            @Html.EditorFor(model => model.Username, new { htmlAttributes = new { @class = "details1 form-control", @placeholder = "Example: Bond007", Type = "text", required = "true", disabled = "true" } })
            @Html.ValidationMessageFor(model => model.Username, "", new { @class = "text-danger",  @id = "username" })
            <br />
            @Html.Label("Email : ")
            @Html.EditorFor(model => model.Email, new { htmlAttributes = new { @class = "details2 form-control", Type = "email", required = "true", disabled = "true" } })
            @Html.ValidationMessageFor(model => model.Email, "", new { @class = "text-danger" ,id = "email" })
            <br />
            @Html.Label("Password : ")
            @Html.EditorFor(model => model.Password, new { htmlAttributes = new { @class = "details3 form-control", @placeholder = "Example: Bond23!", Type = "password", required = "true", disabled = "true" } })
            @Html.ValidationMessageFor(model => model.Password, "", new { @class = "text-danger" ,id="password" })
            <br />
            @Html.Label("Date of Birth : ")
            @Html.EditorFor(model => model.DateOfBirth, "{0:dd-MM-yyyy}", new { htmlAttributes = new { @class = "details4 form-control" ,@placeholder="DD-MM-YYYY",Type = "text", required = "true", disabled = "true" } })
            @Html.ValidationMessageFor(model => model.DateOfBirth, "", new { @class = "text-danger", id = "dob" })
            <br />
            @Html.Label("Phone No : ")
            @Html.EditorFor(model => model.PhoneNo, new { htmlAttributes = new { @class = "details5 form-control", Type = "number", @placeholder = "Phone No", required = "true", disabled = "true" } })
            @Html.ValidationMessageFor(model => model.PhoneNo, "", new { @class = "text-danger", id = "phoneno" })
            <br />
            <label id="Successfully_Changed"></label>
            <button type="button" id="btnSave" class="btn btn-primary btn-lg">Save</button>
            <br />
        </div>
    }

在剧本中：

$('#btnSave').click(function () {

                @{
           if (!String.IsNullOrEmpty(@Html.ValidationMessageFor(u=>u.Username).ToString()))
                    {
                        <text>
                        alert($('#ProfileSetting').validate().valid());
                    $.post(
                        "/Home/EditProfile",
                                {
                            Username: $('.details1').val(),
                            Password: $('.details3').val(),
                            DateOfBirth: $('.details4').val(),
                            PhoneNo: $('.details5').val(),
                        }
                    );
                    $('#Successfully_Changed').html("Successfully Changed.");
                    $('#Successfully_Changed').show();
                </text>
                        } }
            });

Answer 1

在其中一条评论中，您提出的问题是：

如果没有隐藏保存按钮并将数据保存在数据库的h字段中并禁用该字段，则对控制器进行ajax调用。

如果你的目标是在进行ajax调用之前检查表单是否有效，那么就可以这样做了：

var form = $( "#formId" );
form.validate();
if (form.valid()){
    // All is good so do your ajax operation.
}

valid()方法：

检查所选表格是否有效或所有选定元素是否有效。

如何在asp mvc中检查是否有任何html.ValidationMessageFor错误？

1 个答案: