AutoGeneratingColumnEventArgs Class

<dxg:DataGridView x:Name="grid" ItemsSource="{Binding Employees}" 
                  AutoGenerateColumnsMode="Auto"
                  AutoGeneratingColumn="Grid_AutoGeneratingColumn">
    <!-- ... -->
</dxg:DataGridView>

using DevExpress.XamarinForms.DataGrid;
// ...

private void Grid_AutoGeneratingColumn(object sender, AutoGeneratingColumnEventArgs e) {
    if (e.Column.FieldName == "Access")
        e.Column.Caption = "Access Level";
    if (e.Column.FieldName == "Photo")
        e.Cancel = true;
}