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• # re: LINQ to Objects: VB TextBox Edition

  While that is nice, you can eliminate the additional cast by slightly changing your query using "OfType" in the from clause rather than "Is" in the Where clause:
  
  Dim formBoxes = From formControls In Form.Controls.OfType(Of TextBox)
  Select formControls
  
  For Each oBox In formBoxes
  oBox.Enabled = False
  Next
  
  Notice we don't need to do the additional cast in the iteration because we already took care of strongly typing the results in the OfType method. If you compare the two, your version infers the formBoxes type as IEnumberable(Of Control) where mine infers it as IEnumerable(Of TextBox).

  Left by Jim Wooley at 6/20/2008 11:51 AM
• # re: LINQ to Objects: VB TextBox Edition

  Thanks. I was thinking of doing that but I'm just learning LINQ and I was trying to apply the cast to the oBox definition in the For Each line but it's great to know I can do that in the LINQ statement.

  Left by Matt at 6/20/2008 12:52 PM

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