Private Sub AddColumn()
    Dim myTable As New DataTable()
    
    ' Add a new DataColumn to the DataTable.
    Dim myColumn As New DataColumn("myTextBoxColumn")
    myColumn.DataType = System.Type.GetType("System.String")
    myColumn.DefaultValue = "default string"
    myTable.Columns.Add(myColumn)
    ' Get the CurrencyManager for the DataTable.
    Dim cm As CurrencyManager = CType(Me.BindingContext(myTable), CurrencyManager)
    ' Use the CurrencyManager to get the PropertyDescriptor for the new column.
    Dim pd As PropertyDescriptor = cm.GetItemProperties()("myTextBoxColumn")
    Dim myColumnTextColumn As DataGridTextBoxColumn
    ' Create the DataGridTextBoxColumn with the PropertyDescriptor.
    myColumnTextColumn = New DataGridTextBoxColumn(pd)
    ' Add the new DataGridColumn to the GridColumnsCollection.
    dataGrid1.DataSource = myTable
    dataGrid1.TableStyles.Add(New DataGridTableStyle())
    dataGrid1.TableStyles(0).GridColumnStyles.Add(myColumnTextColumn)
End Sub

Private Sub AddColumn(myTable As DataTable)
    ' Add a new DataColumn to the DataTable.
    Dim myColumn As New DataColumn("myTextBoxColumn")
    myColumn.DataType = GetType(String)
    myColumn.DefaultValue = "default string"
    myTable.Columns.Add(myColumn)
    ' Get the ListManager for the DataTable.
    Dim cm As CurrencyManager = CType(Me.BindingContext(myTable), CurrencyManager)
    ' Use the ListManager to get the PropertyDescriptor for the new column.
    Dim pd As PropertyDescriptor = cm.GetItemProperties()("myTextBoxColumn")
    ' Create a new DataTimeFormat object.
    Dim fmt As New DateTimeFormatInfo()
    ' Insert code to set format.
    Dim myColumnTextColumn As DataGridTextBoxColumn
    ' Create the DataGridTextBoxColumn with the PropertyDescriptor and Format.
    myColumnTextColumn = New DataGridTextBoxColumn(pd, fmt.SortableDateTimePattern)
    ' Add the new DataGridColumnStyle to the GridColumnsCollection.
    dataGrid1.TableStyles(0).GridColumnStyles.Add(myColumnTextColumn)
End Sub

Private Sub MyAddCustomDataTableStyle()
   ' Get the currency manager for 'myDataSet'.
   Dim myCurrencyManger As CurrencyManager = CType(Me.BindingContext(myDataSet), CurrencyManager)
   
   Dim myTableStyle As New DataGridTableStyle()
   myTableStyle.MappingName = "Customers"
   
   Dim proprtyDescriptorName As PropertyDescriptor = myCurrencyManger.GetItemProperties()("CustName")
   
   Dim myCustomerNameStyle As DataGridTextBoxColumn = New DataGridTextBoxColumn(proprtyDescriptorName)
   
   myCustomerNameStyle.MappingName = "custName"
   myCustomerNameStyle.HeaderText = "Customer Name"
   myTableStyle.GridColumnStyles.Add(myCustomerNameStyle)
   
   ' Add style for 'Date' column.
   Dim myDateDescriptor As PropertyDescriptor = myCurrencyManger.GetItemProperties()("Date")
   ' 'G' is for MM/dd/yyyy HH:mm:ss date format.
   Dim myDateStyle As DataGridTextBoxColumn = New DataGridTextBoxColumn(myDateDescriptor, "G")
   
   myDateStyle.MappingName = "Date"
   myDateStyle.HeaderText = "Date"
   myDateStyle.Width = 150
   myTableStyle.GridColumnStyles.Add(myDateStyle)
   
   ' Add DataGridTableStyle instances to GridTableStylesCollection.
   myDataGrid.TableStyles.Add(myTableStyle)
End Sub