Change datatype of column in datagridview to type double

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Hy guys
Thank you for reading and kindly helping me
I wanna edit the value of record in my datagridview.
I use PostgreSQL, and the type of the column of the table is double, so I have change the data type in my datagridview as type double
But I still don't have the clue as type string.

Any idea?

What I have tried:

For i As Integer = 0 To dgv_hasillab.Rows.Count - 1
                  dgv_datapasien.Columns(1).ValueType = GetType(Double)
              Next

Posted 25-Oct-18 22:15pm

Member 12544512

Updated 26-Oct-18 21:57pm

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Ahmad Sakr · Answer 1 · 2018-10-26T21:58:00

Hello,
Add this row in the definition of grid

AddHandler dgv_datapasien.CellFormatting, AddressOf dgv_datapasien_CellFormatting

and then this sub

Private Sub dgv_datapasien_CellFormatting(ByVal sender As Object, ByVal e As DataGridViewCellFormattingEventArgs)
        If e.ColumnIndex = 1 AndAlso e.RowIndex <> Me.dgv_datapasien.NewRowIndex Then
            Dim d As Double = Double.Parse(e.Value.ToString())
            e.Value = d.ToString("N2")
        End If
    End Sub