开拓者输入口罩

时间:2020-05-01 11:11:48

标签: c# blazor

我想知道是否可以通过继承InputBase并最好使用Regex来使用Blazor进行屏蔽输入?如果仅使用C#无法实现,那么JavaScript就可以了。我知道Syncfusion具有付费功能,但是我更喜欢免费的东西。任何GitHub存储库或指南/提示都很好!

2 个答案:

答案 0 :(得分:4)

我最终使用了以下代码(根据Ali Borjian的建议),并继承了InputBase:

@inject IJSRuntime JSRuntime
@inherits InputBase<string>
<input id="@guid"  @attributes="AdditionalAttributes" class="@CssClass" value="@CurrentValue" @oninput="EventCallback.Factory.CreateBinder<string>(this, __value => CurrentValueAsString = __value, CurrentValueAsString)" /> 
@code {
    Guid guid { get; set; }
    protected override void OnInitialized()
    {
        guid = Guid.NewGuid();
    }
    protected override async Task OnAfterRenderAsync(bool firstRender)
    {
        if (firstRender)
        {
            await JSRuntime.InvokeVoidAsync("mask",guid.ToString(), AdditionalAttributes["data-mask"].ToString());
        }
    }
    protected override bool TryParseValueFromString(string value, out string result, out string validationErrorMessage)
    {
        result = value;
        validationErrorMessage = null;
        return true;
    }
}

用法:

<EditForm Model="user" OnValidSubmit="Submit">

        <div class="form-group">
            <label>First Name:</label>
            <InputText @bind-Value="user.Name" class="form-control" placeholder="First Name" />
        </div>

        <div class="form-group">
            <label>French Phone no:</label>
            <InputMask @bind-Value="user.Telephone" class="form-control" data-mask="00.00.00.00.00" placeholder="Phone No" />
        </div>
        <button type="submit" class="btn btn-primary">OK</button>
        <ValidationSummary />
        <DataAnnotationsValidator />
    </EditForm>

@code{

    private User user = new User();

    private void Submit()
    {
    }
}

在JS中:

window.mask = (id,mask) => {
        var customMask = IMask(
            document.getElementById(id), {
            mask: mask
        });
    };

还有我们的课程(带有数据注释正则表达式):

   public class User
    {
        [Required]
        public string Name { get; set; }
        [Required]
        [RegularExpression(@"^[0][1-9]([.][0-9][0-9]){4}", ErrorMessage="Incorrect phone number !")]
        public string Telephone { get; set; }

    }

答案 1 :(得分:1)

您可以使用其他javascript掩码插件,但我建议使用imask(https://github.com/uNmAnNeR/imaskjs

现在闪闪发光,请按照以下步骤操作:
1:在_Host.cshtml中,添加对imask库的引用

< script src="https://unpkg.com/imask">< /script >


2:添加一个JavaScript文件来处理您的掩码,并将其引用添加到_Host.cshtml

< script src="~/script/customMasks.js">< /script >


3:在customMasks.js中,您可以使用不同的掩码,例如电话号码的掩码:

    window.masks = () => {

    var phoneMask = IMask(
        document.getElementById('phone-mask'), {
        mask: '+{7}(000)000-00-00'
    });

    ... (other masks)

   };


4:现在您需要在要屏蔽输入的每个页面中调用window.masks函数,

 protected override async Task OnAfterRenderAsync(bool firstRender)
 {
  if (firstRender)
   {
     await JSRuntime.InvokeVoidAsync("mask");
   }
}


5:一切准备就绪,现在您可以像这样掩盖您的输入了:

 <input type="text" id="phone-mask" />