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.NET error - Join of row.ItemArray in DataTable

Posted on 2009-07-08
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Last Modified: 2013-11-26
I have some data in a DataTable.  I want to write it to a tab delimited file.

In the following code I am getting this error on the Join command:
System.ArgumentException: Argument 'SourceArray' cannot be converted to type 'String'.

I am using VS 2008 and .NET 2.0.  Thanks for any ideas.
Dim row As DataRow
Using sOut As New StreamWriter(tabFileName)
       For Each row In dt.Rows
               sOut.WriteLine(Join(row.ItemArray, vbTab))
        Next
End Using

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Question by:MisterT25
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VBRocks earned 500 total points
ID: 24808904
That's because not all columns are Strings.

You'll have to do it like this:

        Dim delimiter As String = String.Empty
        For Each row As DataRow In dt.Rows

            delimiter = String.Empty
            For i As Integer = 0 To dt.Columns.Count - 1

                sOut.Write(delimiter & row.Item(i).ToString())

                delimiter = vbTab

            Next

            sOut.WriteLine("")

        Next

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Author Closing Comment

by:MisterT25
ID: 31601336
VBrocks,

Thanks for your quick response.  I get the idea.

Thanks again
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