请问，怎么实现list(of class) 的搜索功能

请教，如何实现list(of class) 的搜索功能？

VB.NET code

public class a public id as integerend classpublic b as new list(of a)dim a1 as new aa1.id=1dim a2 as new aa2.id=2

怎么才能实例 List 的搜索功能？



或者如何将对象存储在DataTable的列中?

[解决办法]
Public Class a
Implements IEquatable(Of a)

Public id As Integer

Public Function Equals1(other As a) As Boolean Implements System.IEquatable(Of a).Equals
Return id = other.id
End Function

End Class

dim x as new a
x.id=2
dim index=b.indexof(x)
这样就能找到a了
[解决办法]

探讨

回楼上，比如我要查询出id=2的实例

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