C# to VB.net Invoke error

Question

Hey all I am trying to figure out how to get the code below to work in VB.net. I already converted it from C# to VB.net:

Dim dt As New DataTable()
Dim dr As DataRow

dt.Columns.Add("Name")
dt.Columns.Add("Number")

For Each item As KeyValuePair(Of String, String) In vCardReader.dicNumName
    dr = dt.NewRow()
    dr(0) = item.Value
    dr(1) = item.Key
    dt.Rows.Add(dr)
Next

Me.Invoke(New MethodInvoker(
 Sub()
          contactNameNumList.DataSource = dt
          contactNameNumList.AllowUserToResizeRows = False
          contactNameNumList.AllowUserToResizeColumns = False
          contactNameNumList.AllowUserToOrderColumns = False
          contactNameNumList.CellBorderStyle = DataGridViewCellBorderStyle.None
          contactNameNumList.Columns(0).Width = 30
          contactNameNumList.Columns(1).Width = contactNameNumList.Width / 2 - 25
          contactNameNumList.Columns(2).Width = contactNameNumList.Width / 2 - 25
End Sub))

However, when I run the program, the error I get for the above code is this:

Object reference not set to an instance of an object.

How can I correct this error?

Answer 1

How can I correct this error?

The short answer make sure your objects are initialized. I'll assume contactNameNumList is a DataGridView and dt is a DataTable . If you created either or both of these in code make sure you used the New keyword or initialized them with real data.