Question

如果我有以下内容：

[Range(0,120)]
public int QtyOnHand { get; set; }

如何添加错误消息以说明所需范围？

Answer 1

RangeAttribute有ErrorMessage您可以设置：

[Range (0, 120, ErrorMessage = "Quantity on hand must be between {1} and {2}.")]
public int QtyOnHand { get; set; }

使用{1}和{2}，您不必在数字更改时不断更改字符串。 {0}用于该字段的名称。这可以伴随DisplayNameAttribute这样：

[DisplayName ("Quantity on Hand")]
[Range (0, 120, ErrorMessage = "{0} must be between {1} and {2}.")]
public int QtyOnHand { get; set; }

Answer 2

[Range(0,120,ErrorMessage="The quantity on hand must be between 0 and 120")]

Answer 3

[Range(0, 120,ErrorMessage="The Qty Available must be between 0 and 120.")]

确保为客户端验证启用了不显眼的javascript。