Question about Generics

[Academia]

Public Class Some(Of t)

Inherits System.Windows.Forms.UserControl

....

DirectCast(ListBox1.Items(ListBox1.SelectedIndex), t).xyz = TextBox1.Text

....

TextBox1.Text = DirectCast(ListBox1.SelectedItem, t).xyz



At edit time the above statements produce an error that xyz is not a member
of t.

It works OK if instead of genetics I use, in place of t, an actual type that
has an xyz property.



How should I do this with generics?



thanks

 

[Herfried K. Wagner [MVP]]

Public Class Some(Of t)

Inherits System.Windows.Forms.UserControl
...
DirectCast(ListBox1.Items(ListBox1.SelectedIndex), t).xyz = TextBox1.Text

Defining and Using Generics in Visual Basic 2005
<URL:http://msdn2.microsoft.com/en-us/library/ms379608(vs.80).aspx#vb2005_generics_topic4>
-> "Constraints"

 

[Academia]

Thanks for the info

Defining and Using Generics in Visual Basic 2005
<URL:http://msdn2.microsoft.com/en-us/library/ms379608(vs.80).aspx#vb2005_generics_topic4>
-> "Constraints"