在Razor视图中按要求制作字段 [英] Making a field as required in Razor view

问题描述

我想在剃刀视图中根据需要创建一个文本框字段.我不能使用验证属性[Required]，因为字段名称是动态生成的.我检查了此答案，它设置了data-val-required字段使用javascript到true.还有其他方法可以执行此操作，因为在运行项目之前我不会知道字段ID?

I want to make a text box field as required in the razor view. I can't use validation attribute [Required] because the field names are generated dynamically. I checked this answer which sets the data-val-required field to true using javascript. Is there any other way to do this as I wont be knowing the field id before running the project?

我尝试了下面的代码，并且现在可以正常工作，除了验证消息未显示在表单提交上.

I tried the code below and it works now, except that the validation message is not displayed on form submission.

@for (int i = 0; i < Model.Controls.Length; i++)
{
            @Html.TextBoxFor(x => x.Controls[i].Value, new { id = obj.VitalName,  data_val_required = "true" })
            @Html.ValidationMessageFor(x => x.Controls[i].Value, "Please fill in the details.")
        </td>
    </tr>
}

推荐答案

在html属性中使用@required = true而不是data_val_required = "true"

Use @required = true inside the html attributes instead of data_val_required = "true"

@Html.TextBoxFor(x => x.Controls[i].Value, new { id = obj.VitalName,  @required = true })

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