我正在使用 FileHelpers 写出固定长度的文件。
public class MyFileLayout
{
[FieldFixedLength(2)]
private string prefix;
[FieldFixedLength(12)]
private string customerName;
public string CustomerName
{
set
{
this.customerName= value;
**Here I require to get the customerName's FieldFixedLength attribute value**
}
}
}
如上所示,我想在属性的 set 方法中访问自定义属性值。
我如何实现这一目标?
您可以使用反射来做到这一点。
using System;
using System.Reflection;
[AttributeUsage(AttributeTargets.Property)]
public class FieldFixedLengthAttribute : Attribute
{
public int Length { get; set; }
}
public class Person
{
[FieldFixedLength(Length = 2)]
public string fileprefix { get; set; }
[FieldFixedLength(Length = 12)]
public string customerName { get; set; }
}
public class Test
{
public static void Main()
{
foreach (var prop in typeof(Person).GetProperties())
{
var attrs = (FieldFixedLengthAttribute[])prop.GetCustomAttributes
(typeof(FieldFixedLengthAttribute), false);
foreach (var attr in attrs)
{
Console.WriteLine("{0}: {1}", prop.Name, attr.Length);
}
}
}
}
更多信息请引用this