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POChecking for duplicates in DataGridView
 

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  1. POChecking for duplicates in DataGridView
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    <p>I have an If and a nested-If that rejects rows with columns that have a value greater than 0. The nested-If is supposed to check for doubles and add up the duplicate values I need but it's not. I'm not sure what I'm missing here.</p> <pre><code> Dim rowValue As String Dim cellValue As String() If System.IO.File.Exists("shortlist.csv") Then Using streamReader As System.IO.StreamReader = New StreamReader("shortlist.csv") 'Defines columns rowValue = streamReader.ReadLine() cellValue = rowValue.Split(",") With dgv.Columns .Add(cellValue(0).ToString, cellValue(0).ToString) .Add(cellValue(3).ToString, cellValue(3).ToString) .Add(cellValue(5).ToString, cellValue(5).ToString) .Add(cellValue(6).ToString, cellValue(6).ToString) .Add(cellValue(8).ToString, cellValue(8).ToString) End With ' Reading content While streamReader.Peek() &lt;&gt; -1 Dim cnt As Integer = 0 rowValue = streamReader.ReadLine() cellValue = rowValue.Split(",") If (cellValue(6) &gt; 0) Then 'comparing works. need to tinnker with loop. If (cellValue(0).ToString &lt;&gt; dgv.Rows(cnt).Cells("Phone Number").Value) Then dgv.Rows.Add(cellValue(0).ToString, cellValue(3).ToString, cellValue(5).ToString, cellValue(6).ToString, cellValue(8).ToString) Else dgv.Rows(cnt).Cells(3).Value = (cellValue(6) + Integer.Parse(dgv.Rows(cnt).Cells(3).Value)) dgv.Rows(cnt).Cells(4).Value = (cellValue(8) + Integer.Parse(dgv.Rows(cnt).Cells(4).Value)) cnt += 1 End If End If End While End Using Else MsgBox("No File is Selected") End If </code></pre> <p>The .CSV file I'm working with has several columns, the first being a phone number. As I read every rows phone number and I come across a duplicate phone number I want to add the values from two columns to their unique rows.</p>
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    1. PTQuestion
    1. USGoodBoyNYC
    1. USGoodBoyNYC
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      1. VTUpMod
    1. COCould you please give more of your code (where does cellValue() code from?) and explain a little more clearly what you are trying to achieve? Also, you don't explain what is expected from your code or what is actually happening instead.
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      1. USDavid Hall
    2. COcellValue() is a string array that has the current row from a .CSV file I'm trying to sort.
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      1. USGoodBoyNYC
    3. COHave you considered that `.Cells("Phone Number").Value` will return an `object`? So in order to compare it with `ToString` value you should prefer `.Cells("Phone Number").Value.ToString()`.
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      1. USNeverHopeless
 

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