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remove blank line from a variable in .net visual basic

Posted on 2012-09-05
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Last Modified: 2012-09-05
I create an array and write it to a text file, but it will awalys have a blank line at the end.  How can I fix this?

Dim strNames As String = Nothing
        For Each Names In arrNameList
            strNames = +Names & vbCrLf
        Next
        File.WriteAllText("c:\temp\serials.txt", strNames)
        Process.Start("notepad.exe", "c:\temp\serials.txt")
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Question by:chadmanvb
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4 Comments
 
LVL 86

Expert Comment

by:Mike Tomlinson
ID: 38369073
You can just do:

    Dim strNames As String = String.Join(vbCrLf, arrNameList)
    File.WriteAllText("c:\temp\serials.txt", strNames)
    Process.Start("notepad.exe", "c:\temp\serials.txt")
0
 

Author Comment

by:chadmanvb
ID: 38369162
Idle,
That does not seem to work with an arraylist.  Here is the code to create the array

Dim arrNameList As New ArrayList


If ColumnNumber = 0 Then
                                        arrNameList.Add(ds.Tables(0).Rows(RowNumber)(ColumnNumber).ToString())
                End If

Should I be using something else?
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LVL 86

Accepted Solution

by:
Mike Tomlinson earned 2000 total points
ID: 38369183
Gotcha...you initially said "array" so I assumed:

    Dim arrNameList() As String

Use a List(Of String) instead:

    Dim arrNameList As New List(Of String)

Then call ToArray() on it:

    Dim strNames As String = String.Join(vbCrLf, arrNameList.ToArray)
0
 

Author Closing Comment

by:chadmanvb
ID: 38369212
Perfect!  Thanks so much!  Chad
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