Question

我有以下定义：

public class Menu
{
    [DisplayName("Control")]
    public int Control { get; set; }

像这样使用它：

  @Html.TextBoxFor(x => x.Control, new { id = "control" })

我可以指定订单的范围吗？我希望订单成为一个数字在0到999之间。

我也可以让创建的文本框只有三个空格字符？

Answer 1

Is it possible for me to specify a range for the order? I would like the order to be a number between 0 and 999.

使用RangeAttribute

[DisplayName("Control")]
[Range(0, 99, ErrorMessage = "{0} must be between {1} and {2}")]
public int Control { get; set; }

关于第二个问题

Also is it possible for me to make the textbox that gets created just have space for three characters?

使用StringLengthAttribute

[StringLength(3, ErrorMessage="{0} must be {1} characters"]
[DisplayName("Control")]
[Range(0, 99, ErrorMessage = "{0} must be between {1} and {2}")]
public int Control { get; set; }

如果需要，您还可以指定minumun chars长度

[StringLength(10, minimumLength=5, ErrorMessage="{0} must be between {1} and {2} characters"]
public int Control { get; set; }

Answer 2

您可以使用此范围

 public class Menu
    {
        [DisplayName("Control")]
        [Range(0, 999)]
        public int Control { get; set; }
    }

只有三个空间使用此

@Html.TextBoxFor(x => x.Control, new { id = "control",maxlength="3" })

Answer 3

在这种情况下，尝试使用范围注释。

public class Menu
{
    [DisplayName("Control")]
    [Range(0, 999, ErrorMessage = "Control should be between 0 and 999")]
    public int Control { get; set; }
}

是的，以及文本框的长度

@Html.TextBoxFor(x => x.Control, new { id = "control", maxlength="3" })

如何将验证添加到我的MVC字段？

3 个答案: