String to Integer Conversion Error when reading file

[wk89]

Hello all,

This programs attempts to read a textfile, spilt the strings delimited by ';', and change the BG color of the DataGridView accordingly.
I have a conversion error when executing this code. But I'm not sure where the error lies.
Please assist.





Function loadCellColor()
Dim i As Integer = 0 'Counter for Rows

Dim ID As Integer 'Store row ID value
Dim colIndex As Integer 'Store Column
Dim colorString As String 'Store Color Code

Dim FileToString As String = "" 'grab 1 line from file
Dim split As String() 'divide line via ";" delimiter
Dim filePath As String = "..\..\..\config\cellColor.txt"
Dim filenum As Integer

filenum = FreeFile()

'Read from File
Try
FileOpen(filenum, filePath, OpenMode.Input)
'Read Line by Line
While Not EOF(filenum)
FileToString = LineInput(filenum)
split = Regex.Split(FileToString, ";")
ID = Convert.ToInt32(split(0)) 'Store row ID value
colIndex = Convert.ToInt32(split(1)) 'Store Column
colorString = split(2) 'Store Color Code

System.Windows.Forms.MessageBox.Show(ID.ToString & " Column= " & colIndex.ToString & " color=" & colorString)

For i = 0 To ProjectsDataGridView.RowCount - 1
'Look for Matching Row ID
If ProjectsDataGridView.Rows(i).Cells(0).Value = ID Then

'Highlight the Cell
ProjectsDataGridView.Rows(i).Cells(colIndex).Style.BackColor = Color.FromArgb(CInt(colorString))
'Found the Cell, break loop and read next line
Exit For

End If
Next

End While

FileClose(filenum)
Catch ex As Exception
MessageBox.Show("File Error Occurred!" + vbCrLf + ex.ToString)
End Try

Return Nothing

End Function

The textfile looks like this:

79;6;-16711808

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