Bug? TreeView initial focus

[Informatix]

When the TreeView is displayed for the first time, the focus is given to the second visible item. Why? The only way to get rid of it is by clicking on another item. By code, I did not find a way to move it or clear it.

Two examples that shows the bug: jTreeViewExtended and TreeView Learning Tool

 

[Erel]

Looks like a bug in JavaFX fixed for Java 9: https://bugs.openjdk.java.net/browse/JDK-8088194

Edit: I tested it with Java 9 and it is not fixed.

 

[Erel]

You can use this code to explicitly set the focus:

Sub AppStart (Form1 As Form, Args() As String)
   MainForm = Form1
   MainForm.RootPane.LoadLayout("1") 'Load the layout file.
   MainForm.Show
   For i = 1 To 10
     Dim ti As TreeItem
     ti.Initialize("", "Item " & i)
     TreeView1.Root.Children.Add(ti)
   Next
   CallSubDelayed3(Me, "SetFocus", TreeView1, 0)
End Sub

Private Sub SetFocus(tv As TreeView, index As Int)
   Dim jo As JavaObject = tv
   jo.RunMethodJO("getFocusModel", Null).RunMethod("focus", Array(index))
End Sub

 

[Informatix]

You can use this code to explicitly set the focus:

Sub AppStart (Form1 As Form, Args() As String)
   MainForm = Form1
   MainForm.RootPane.LoadLayout("1") 'Load the layout file.
   MainForm.Show
   For i = 1 To 10
     Dim ti As TreeItem
     ti.Initialize("", "Item " & i)
     TreeView1.Root.Children.Add(ti)
   Next
   CallSubDelayed3(Me, "SetFocus", TreeView1, 0)
End Sub

Private Sub SetFocus(tv As TreeView, index As Int)
   Dim jo As JavaObject = tv
   jo.RunMethodJO("getFocusModel", Null).RunMethod("focus", Array(index))
End Sub

I tried this function but I didn't call it with CallSubDelayed. Without it, that does not work. Thanks for this solution.

 

[Informatix]

Looks like a bug in JavaFX fixed for Java 9: https://bugs.openjdk.java.net/browse/JDK-8088194

Edit: I tested it with Java 9 and it is not fixed.

It's the same bug indeed.