What is it about DataTable Column Names with dots that makes them unsuitable for WPF’s DataGrid control?

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You can keep AutoGenerateColumns set to true and add an eventhandler to deal with any periods (or other special characters):

    <DataGrid
    Name="r2"
          ItemsSource="{Binding Path=.}"
          AutoGeneratingColumn="r2_AutoGeneratingColumn">
    </DataGrid>

Codebehind:

private void r2_AutoGeneratingColumn(object sender, DataGridAutoGeneratingColumnEventArgs e)
{
    if (e.PropertyName.Contains('.') && e.Column is DataGridBoundColumn)
    {
        DataGridBoundColumn dataGridBoundColumn = e.Column as DataGridBoundColumn;
        dataGridBoundColumn.Binding = new Binding("[" + e.PropertyName + "]");
    }
}

This worked better for me in a MVVM scenario.

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