Datagridview Column accept decimals?

Question

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How do i allow decimals in the below code?

VB

ElseIf (e.ColumnIndex = 9) Then   ' Checking numeric value for Column 9 only
            Dim value As String = DataGridView1.Rows(e.RowIndex).Cells(e.ColumnIndex).Value.ToString()
            For Each c As Char In value
                If Not Char.IsDigit(c) Then
                    MessageBox.Show("Please enter a numeric value.", "Input Error", MessageBoxButtons.OK, MessageBoxIcon.Error)
                    DataGridView1.Rows(e.RowIndex).Cells(e.ColumnIndex).Value = String.Empty
                    Exit Sub
                End If
            Next

Posted 16-Sep-13 4:54am

PythonProgrammer

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[no name] 16-Sep-13 10:57am

You change it to allow people to type in a "."

PythonProgrammer 16-Sep-13 11:00am

yes but how do i do that

[no name] 16-Sep-13 11:01am

What do you mean "how"? You write some code.

PythonProgrammer 16-Sep-13 11:02am

I know that but what do i change char to

[no name] 16-Sep-13 11:06am

I wouldn't have any idea what it is that you think that means. A . can be a char too.

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hypermellow · Accepted Answer · 2013-09-16T05:25:00

My VB is a bit rusty, but something like this should do it:

VB

ElseIf (e.ColumnIndex = 9) Then   ' Checking numeric value for Column 9 only
            Dim value As String = DataGridView1.Rows(e.RowIndex).Cells(e.ColumnIndex).Value.ToString()
            Dim dTmp As Decimal
            If Not Decimal.TryParse(value,dTmp) Then MessageBox.Show("Please enter a numeric value.", "Input Error", MessageBoxButtons.OK, MessageBoxIcon.Error)