Enumarating elements on an expander

[HDC]

Hi,

I have placed a large number of controls inside a grid on a RadExpander control.

I would like to loop on all the child controls that i have in the RadExpander and hook up event handlers on the controls found. I know the VisualTreeHelper is supposed to do the job but for some reason however the controls are never getting hooked up.

This is my code... PropPanel is a stackpanel that contains all of the expander controls, i am using a stack object to avoid recursivity

 

Stack<FrameworkElement> visualstack = new Stack<FrameworkElement>();

            visualstack.Push(PropPanel);

            while (visualstack.Count > 0)
            {
                FrameworkElement child = visualstack.Pop();

                int count = VisualTreeHelper.GetChildrenCount(child);

                for (int cnt = 0; cnt < count; cnt++)
                {
                    FrameworkElement el = (FrameworkElement)VisualTreeHelper.GetChild(child, cnt);

                    if (el is tc.RadNumericUpDown)
                        ((tc.RadNumericUpDown)el).ValueChanged += PropertyPanelValueChanged;
                    else if (el is TextBox)
                        ((TextBox)el).TextChanged += PropertyPanelTextChanged;
                    else if (el is tc.RadColorPicker)
                        ((tc.RadColorPicker)el).SelectedColorChanged += PropertyPanelSelectedColorChanged;
                    else if (el is ComboBox)
                        ((ComboBox)el).SelectionChanged += PropertyPanelComboSelectionChanged;
                    else if (el is Button && !(el is CheckBox))
                        ((Button)el).Click += PropertyPanelButtonClick;
                    else if (el is ToggleButton && !(el is CheckBox))
                        ((ToggleButton)el).Click += PropertyPanelToggleButtonClick;
                    else if (el is CheckBox)
                    {
                        ((CheckBox)el).Checked += PropertyPanelChecked;
                        ((CheckBox)el).Unchecked += PropertyPanelChecked;
                    }
                    else
                        visualstack.Push(el);
                }
            }

 

 

 

Can anyone tell me what i'm missing, why are the controls notbeing hooked up?

 

 

 

 

[Kiril Stanoev]

Hi Peter,

I was not able to reproduce the issue you're describing. Could you please take a look at the attached project and let me know if I am missing something. I'd be glad to further assist you.

Regards,
Kiril Stanoev
the Telerik team