[DXCategory("Data")]
public event CustomColumnDataEventHandler CustomUnboundColumnData

<DXCategory("Data")>
Public Event CustomUnboundColumnData As CustomColumnDataEventHandler

// Create an unbound column that supports editing.
GridColumn unboundColumn = gridView.Columns.AddField("CustomData");
unboundColumn.UnboundDataType = typeof(string);
unboundColumn.Visible = true;
// Handle the CustomUnboundColumnData event.
Dictionary<int, string> unboundData = new Dictionary<int, string>();
unboundData[1] = "Can live up to 20 years!";
gridView.CustomUnboundColumnData += (sender, e) =>
{
    if(e.Column.FieldName == "CustomData") {
        // Populate columns.
        if(e.IsGetData) {
            if(unboundData.ContainsKey(e.ListSourceRowIndex)) 
                e.Value = unboundData[e.ListSourceRowIndex];
        }
        // Post edits back to the data source.
        if(e.IsSetData && e.Value != null) {
            unboundData[e.ListSourceRowIndex] = e.Value.ToString();
        }
    }
};

' Create an unbound column that supports editing.
Dim unboundColumn As GridColumn = gridView.Columns.AddField("CustomData")
unboundColumn.UnboundDataType = GetType(String)
unboundColumn.Visible = True
' Handle the CustomUnboundColumnData event.
Dim unboundData As New Dictionary(Of Integer, String)()
unboundData(1) = "Can live up to 20 years!"
AddHandler gridView.CustomUnboundColumnData, Sub(sender, e)
    If e.Column.FieldName = "CustomData" Then
        ' Populate columns.
        If e.IsGetData Then
            If unboundData.ContainsKey(e.ListSourceRowIndex) Then
                e.Value = unboundData(e.ListSourceRowIndex)
            End If
        End If
        ' Post edits back to the data source.
        If e.IsSetData AndAlso e.Value IsNot Nothing Then
            unboundData(e.ListSourceRowIndex) = e.Value.ToString()
        End If
    End If
End Sub

view.CustomDrawGroupRow += new RowObjectCustomDrawEventHandler(View_CustomDrawGroupRow);
view.CustomUnboundColumnData += new CustomColumnDataEventHandler(view_CustomUnboundColumnData);
view.KeyDown += new KeyEventHandler(view_KeyDown);

{
    _GridView.CustomUnboundColumnData += _GridView_CustomUnboundColumnData;
}

gridView.Columns.Add(col);
gridView.CustomUnboundColumnData += OnGridViewCustomUnboundColumnData;
col.ColumnEdit = tokenEditRep;

col.Visible = true;
    gridView1.CustomUnboundColumnData+=new DevExpress.XtraGrid.Views.Base.CustomColumnDataEventHandler(gridView1_CustomUnboundColumnData);
}

AddHandler view.CustomDrawGroupRow, New RowObjectCustomDrawEventHandler(AddressOf View_CustomDrawGroupRow)
AddHandler view.CustomUnboundColumnData, New CustomColumnDataEventHandler(AddressOf view_CustomUnboundColumnData)
AddHandler view.KeyDown, New KeyEventHandler(AddressOf view_KeyDown)

Private Sub InitGridView()
    AddHandler _GridView.CustomUnboundColumnData, AddressOf _GridView_CustomUnboundColumnData
End Sub

gridView.Columns.Add(col)
AddHandler gridView.CustomUnboundColumnData, AddressOf OnGridViewCustomUnboundColumnData
col.ColumnEdit = tokenEditRep

AddHandler gridView1.CustomDrawCell, AddressOf GridView1_CustomDrawCell
AddHandler gridView1.CustomUnboundColumnData, AddressOf GridView1_CustomUnboundColumnData
Dim checkEdit As RepositoryItemCheckEdit = TryCast(gridControl1.RepositoryItems.Add("CheckEdit"), RepositoryItemCheckEdit)

col.Visible = True
    AddHandler gridView1.CustomUnboundColumnData, New DevExpress.XtraGrid.Views.Base.CustomColumnDataEventHandler(AddressOf gridView1_CustomUnboundColumnData)
End Sub