[AttributeUsage(AttributeTargets.Property )]
public class FieldAttribute: Attribute
{
    public FieldAttribute(string field)
    {
        this.field = field;
    }
    private string field;

    public string Field
    {
        get { return field; }

    }
}

我的使用自定义属性的类如下所示

[Serializable()]   
public class DocumentMaster : DomainBase
{

    [Field("DOC_CODE")]
    public string DocumentCode { get; set; }


    [Field("DOC_NAME")]
    public string DocumentName { get; set; }


    [Field("REMARKS")]
    public string Remarks { get; set; }


   }
}

但是当我尝试获取自定义属性的值时,它返回null对象

Type typeOfT = typeof(T);
T obj = Activator.CreateInstance<T>();

PropertyInfo[] propInfo = typeOfT.GetProperties();

foreach (PropertyInfo property in propInfo)
{

     object[] colName = roperty.GetCustomAttributes(typeof(FieldAttributes),false);
     /// colName has no values.
}

我错过了什么？

解决方法

var field = (FieldAttribute) Attribute.GetCustomAttribute(
          property,typeof (FieldAttribute),false);
if(field != null) {
    Console.WriteLine(field.Field);
}

• 上一篇：c# – 将DataTable转换为通用列表？下一篇：c# – 编译器如何使用’yield retu