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]]

"Academia" <ac************@a-znet.comschrieb:

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"

--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://dotnet.mvps.org/dotnet/faqs/>

[Academia]

Thanks for the info
"Herfried K. Wagner [MVP]" <hi***************@gmx.atwrote in message
news:eT**************@TK2MSFTNGP03.phx.gbl...

"Academia" <ac************@a-znet.comschrieb:

>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"

--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://dotnet.mvps.org/dotnet/faqs/>