Displaying negative values in a DataGridView object using .DefaultCellStyle.Format

Greetings Experts,

I have a DataGridView object on my form that is linked to a dataTable populated based on a variable SQL query.  I use the DefaultCellStyle.Format and Alignment properties based on the datatype of the column to adjust the display style for the end user.  

DataGridView1.Columns.Item("InvoiceAmt").Width = 90
DataGridView1.Columns.Item("InvoiceAmt").DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleRight
DataGridView1.Columns.Item("InvoiceAmt").DefaultCellStyle.Format = "c" 'currency

My problem comes with the way that negative values are displayed with the .DefaultCellStyle.Format value set to "c" for currency.  For some reason, it places negative values within parenthesis, i.e. ($2250.45) instead of -$2250.45

Is there a way I can fix this to properly display the information?  Any suggestions and help are appreciated.  Thank you in advance.

gwosgoodIT MgrAsked:
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This is because of default en-Us NumberFormatInfo.

Assign number format info to column:
Dim nfi As New NumberFormatInfo
nfi.CurrencySymbol = Application.CurrentCulture.NumberFormat.CurrencySymbol
nfi.CurrencyNegativePattern = 1
DataGridView1.Columns("InvoiceAmt").DefaultCellStyle.FormatProvider = nfi
DataGridView1.Columns("InvoiceAmt").DefaultCellStyle.Format = "C"

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gwosgoodIT MgrAuthor Commented:
I accept the solution because it does exactly what I asked for, but I really have no idea why.  Ill need to do a bit more research before I can fully understand the solution.

I appreciate your quick response, thank you very much.
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