I have put it like that

    public MainPage()
        {
         
            InitializeComponent();
            ObservableCollection<Sale> mSharesData = SampleDataGenerator.GenerateSales(500);
            ((FlatDataSource)this.pivotGrid.DataSource).ItemsSource = mSharesData;

           this.pivotGrid.DataSource.ResultChanged += (sender, e) =>
            {
                Update();
            };

this.pivotGrid.Loaded += new RoutedEventHandler(PivotGridContainer_Loaded);

}

any way, if i put it in the update function, it works :)

Hi

It seems that you havent set the datasource when the Loaded event is fired and the panels and scroll bars are not visible. So that is why VisualTreeHelper can not find them.

In this case you can use LayoutLoaded event ot get your visual elements

this.piotGrid.LayoutLoaded += new System.EventHandler<System.EventArgs>(PGrid_LayoutLoaded);

 Todor

Hi,

 void PivotGridContainer_Loaded(object sender, RoutedEventArgs e)
        {
            PivotColumnsPanel obj = GetObject(this.pivotGrid, "ColumnsHeaderPanel") as PivotColumnsPanel;
            double columnWidth = obj.RenderSize.Width / 12;
           for (int index = 0; index < 12; index++)
           {
                pivotGrid.DataColumns[index].ColumnWidth = columnWidth;
           }
            ScrollBar vert = GetObject(pivotGrid, "VerticalScrollBar") as ScrollBar;
            ScrollBar horiz = GetObject(pivotGrid, "HorizontalScrollBar") as ScrollBar;
        }

so in my case the object is PivotColumnsPanel andScrollBar.

i tried to call this function PivotGridContainer_Loaded from the pivotGrid_CellControlAttached and it worked, the object returned a value, but i dont want it to be called for each cell, i want it for the whole grid.

Hi

What is the type of the 'obj'. You should give the pivotGrid.

Todor

Hi,

It still gives me null value

   this.pivotGrid.Loaded += new RoutedEventHandler(PivotGridContainer_Loaded);

because the  int coutn = VisualTreeHelper.GetChildrenCount(obj);

count is always zero and  child = VisualTreeHelper.GetChild(obj, index); is null

Thanks,