VB.net Sort Arraylist By Objects Name

Question

Trying to sort a arraylist by Objects name

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

Thank you

You've set Textbox1.Name three times - in case that is actually what you meant I have left it to you to edit your post. Also, what version of Visual Studio are you using. — Andrew Morton
– Andrew Morton, Commented Nov 28, 2012 at 16:20

sloth · Accepted Answer · 2012-11-28 15:11:46Z

7

You have to create an IComparer and pass it to the Sort method:

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:

Dim ObjList As New List(Of TextBox)

...

ObjList.Sort(Function(x, y) String.Compare(x.Name, y.Name))

edited Nov 28, 2012 at 15:11

answered Nov 28, 2012 at 15:05

sloth

101k21 gold badges182 silver badges224 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

VB.net Sort Arraylist By Objects Name

1 Answer 1

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related