MVC驗證 - 非必填字段在提交表單前被強制填寫

Question

我認爲在提交表單之前需要填寫以下字段。

VIEW：

<div class="col-md-4"> 
    @Html.EditorFor(model => model.BusinessPhone, new { htmlAttributes = new { @class = "form-control boldgray", @placeholder = "Business Phone" } }) 
</div> 

<div class="col-md-4"> 
    @Html.EditorFor(model => model.MobilePhone, new { htmlAttributes = new { @class = "form-control boldgray", @placeholder = "Mobile/Alternative" } }) 
</div> 

MODEL：

[DisplayName("Home Phone")] 
[Required] 
public int HomePhone { get; set; } 

[DisplayName("Business Phone")] 
public int BusinessPhone { get; set; } 

[DisplayName("Mobile Phone")] 

這些字段標在我的數據庫爲 「允許空值」，並沒有[必需]數據標註在我的模型。爲什麼在提交表格之前需要他們？

Answer 1

也許嘗試使用可爲空的電話號碼？

如：

[DisplayName("Business Phone")] 
     public int? BusinessPhone { get; set; }