regular expression help

Hi

I have a string that contains a long list of stock codes separated by commas. What i need to do is this:

1. Count the no of stock codes in the list
2. For every 10 stock codes in the list, create a new string containing just those 10 codes. If there were 33 codes in the initial string there would be 3 strings containing 10 codes and 1 string containing 3 codes.
3. Create an array containing the new strings

I can think of many ridiculously convoluted ways of doing this but i would be interested to see a efficient way of doing this.

Thanks in advance
andrea

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Using Split can be resolved the problem

        Dim content As String = "Stock1,Stock2,Stock3,Stock4,Stock5,Stock6,Stock7,Stock8,Stock9,Stock10,"
        content += "Stock11,Stock12,Stock13,Stock14,Stock15,Stock16,Stock17,Stock18,Stock19,Stock20,"
        content += "Stock21,Stock22,Stock23,Stock24,Stock25,Stock26,Stock27,Stock28,Stock29,Stock30,"
        content += "Stock31,Stock32,Stock33"
 
        Dim fields As String() = content.Split(","c)
 
        ' Count the no of stock codes in the list
        Dim count As Integer = fields.Length
 
        'For every 10 stock codes in the list, create a new string containing just those 10 codes. 
        'If there were 33 codes in the initial string there would be 3 strings containing 10 codes 
        'and 1 string containing 3 codes.
        Dim subStringCount As Double = Math.Ceiling(count / 10) - 1
        Dim subString(subStringCount) As String
 
        For i As Integer = 0 To count - 1
            Dim index = Math.Ceiling((i + 1) / 10) - 1
            subString(index) += fields(i) + ","c
        Next
 
        'Create an array containing the new strings
        Dim subArray(subStringCount) As Array
        For i As Integer = 0 To subStringCount
            subArray(i) = subString(i).TrimEnd(","c).Split(","c)
        Next

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Dim content As String = "Stock1,Stock2,Stock3,Stock4,Stock5,Stock6,Stock7,Stock8,Stock9,Stock10," content += "Stock11,Stock12,Stock13,Stock14,Stock15,Stock16,Stock17,Stock18,Stock19,Stock20," content += "Stock21,Stock22,Stock23,Stock24,Stock25,Stock26,Stock27,Stock28,Stock29,Stock30," content += "Stock31,Stock32,Stock33" ' Count the no of stock codes in the list Dim count As Integer = content.Split(","c).Length 'For every 10 stock codes in the list, create a new string containing just those 10 codes. 'If there were 33 codes in the initial string there would be 3 strings containing 10 codes 'and 1 string containing 3 codes. 'Create an array containing the new strings Dim lResult As New ArrayList Dim lPattern As String = "([\w-_]+,[\w-_]+,[\w-_]+,[\w-_]+,[\w-_]+,[\w-_]+,[\w-_]+,[\w-_]+\,[\w-_]+,[\w-_]+,)" For Each item As String In Regex.Split(content, lPattern) If Not String.IsNullOrEmpty(item) Then lResult.Add(item.TrimEnd(","c)) Next

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regular expression help

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