Question

When using DataGridView.AutoGenerateColumns = True, the boolean property of bound object is updated fine, but not when I add columns manually. Values remain False.

Are there some parameters I need to set when adding the DataGridViewCheckBoxColumn? It seems not to be sufficient to set the .DataPropertyName.

I see it has some other properties like .TrueValue, .FalseValue etc, but not sure what they are for?

Or do I need to write some type of custom CellFormatting/CellValidating events?

EDIT:
I add column by extension method:

    <Extension()> _
Public Sub AddCheckBoxColumn(ByVal dgv As DataGridView, ByVal propertyName As String, ByVal colName As String, ByVal fillWeight As Integer)
    Dim col As New DataGridViewCheckBoxColumn(False)
    col.HeaderCell.Style.Alignment = DataGridViewContentAlignment.MiddleCenter
    col.HeaderText = colName
    col.Name = colName
    col.Width = fillWeight
    col.DataPropertyName = propertyName
    dgv.Columns.Add(col)
End Sub

Answer 1

Found my mistake. Had an incomplete extension method with the same name in a different library. So it did not use the method I was changing.