VB.net 按对象名称对 Arraylist 排序
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VB.net Sort Arraylist By Objects Name
提问by ArcSet
Trying to sort a arraylist by Objects name
尝试按对象名称对数组列表进行排序
Dim ObjList as new arraylist
Dim TextBox1 as new textbox
Textbox1.name = "CCC"
Dim TextBox2 as new textbox
Textbox1.name = "AAA"
Dim TextBox3 as new textbox
Textbox1.name = "BBB"
ObjList.add(TextBox1)
ObjList.add(TextBox2)
ObjList.add(TextBox3)
ObjList.sort()
Sort creates a error. How would I sort the TextBoxs by Name so it looks like AAA BBB CCC
排序会产生错误。我将如何按名称对文本框进行排序，使其看起来像 AAA BBB CCC
Thank you
谢谢
回答by sloth
You have to create an IComparerand pass it to the Sortmethod:
Class TextBoxComparer
Implements IComparer
Public Function Compare(x As Object, y As Object) As Integer Implements IComparer.Compare
Return String.Compare(x.Name, y.Name)
End Function
End Class
...
ObjList.Sort(New TextBoxComparer())
Or, if you can switch to List(Of TextBox), an anonymous function (that matches the Comparison(Of T)delegate) will also do:
或者，如果您可以切换到List(Of TextBox)，匿名函数（匹配比较（Of T）委托）也将执行以下操作：
Dim ObjList As New List(Of TextBox)
...
ObjList.Sort(Function(x, y) String.Compare(x.Name, y.Name))
