remove empty string from array vb.net

Question

I am trying to get each sentence from my rtextbox into an array. However, when I use .split method, it gives me empty spaces as part of the array.

How can I either remove the empty ones or not have them come into the array in the first place?

Dim senArray() = RTextBox.Text.Split(New String() {"."}, StringSplitOptions.RemoveEmptyEntries)

Thank you!

Can you give an example of the output? Do you have actual entries that are blank, or do you have spaces at the the start of some sentences? — valverij
– valverij, Commented Nov 7, 2014 at 15:47
when i try linq Where expression, it gives me the following error: Variable cannot be initialized with non-array type 'System.Collections.Generic.IEnumerable(Of String)' — Dman
– Dman, Commented Nov 7, 2014 at 15:49

James Thorpe · Accepted Answer · 2014-11-07 16:07:17Z

9

You can use a linq Where expression to remove the whitespace entries:

Dim senArray() = RTextBox.Text.Split(
                     New String() {"."}, StringSplitOptions.RemoveEmptyEntries
                 ).Where(
                     Function(s) Not String.IsNullOrWhitespace(s)
                 ).ToArray()

edited Nov 7, 2014 at 16:07

answered Nov 7, 2014 at 15:44

James Thorpe

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2 Comments

john k Over a year ago

Where is not a member of System.array :(

James Thorpe Over a year ago

@johnktejik Indeed - it's an extension method made available via System.Linq - you'd need to include that using to make it available.

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