Hi. 

I tried to do the same for the example in this article, but there was no drop-down list. It also did not accept the values on the list.

I need to loop through all controls/elements and child controls/elements on a form and disable the control/element if the Tag property = "someText".

The following code works for controls and child controls on the form, but not for radRibbonBar elements. 

=================================================
foreach (var control in GetControlHierarchy(this))
            {
                if (control.Tag != null)
                {
                    if (control.Tag.Equals("someText"))
                    {
                        control.Enabled = false;
                    }
                }
            }

 private IEnumerable<Control> GetControlHierarchy(Control root)
        {
            var queue = new Queue<Control>();

            queue.Enqueue(root);

            do
            {
                var control = queue.Dequeue();

                yield return control;

                foreach (var child in control.Controls.OfType<Control>())
                    queue.Enqueue(child);

            } while (queue.Count > 0);
        }
======================================================

How would I change the above code to include radRibbonBar elements?

Thank you,

How to add a click event to the form header? How to do it so that the event fires only when you click on the header, excluding buttons and tabs.

For clarity, I have highlighted the area in the picture below, only it should react to the event.

Hi,

I'm currently using a dataentry connected to a bindingnavigator. I'm using the below code to check when the bindingsource collection change.

The goal is to disable the delete button in the bindingnavitor when the bindingsource collection has 1 item in it like shown below:

However, I'm having a hard time disable the delete button. As seen in the ListChanged, I'm using below code to disable the button, but it seems that it has no effect at all. Am I doing something wrong?

I see TabbedForm has RightItems and LeftItems. How to add various controls there?

I've tried creating a Button(Button btn = new Button();), and adding it(RightItems.add(btn)). However, this did not work, since the Add method asks for a certain RadItem ?! I did not find details and examples in the documentation :(

Hello, 
We're using RadTreeView with a mutiselection and expect that SelectedNodesChanged event will be fired once user select/deselect set of nodes (e.g. with Shit Key), Unfortunately it fires much more times.
Example: if I have several nodes selected and just click on any single node, I expect SelectedNodesChanged event will be fired only once, or at least two times (collection cleared, and then filled with single node), but it fires as much as I have selected nodes plus one? are you ok with that?

Could you explain how it works? for me it looks like a bug. It's replicated on latest 2019 R1 release

Good morning, I would like to know how you can combine an object that contains a list inside it and be able to pass it to a list in the document. This is my class to combine:

public class Customer

{
        public string Name{ get; set; }

        public int Age{ get; set; }

        public string PaymentDate{ get; set; }
       
        public ObservableCollection<string> ChildrenName{ get; set; }

}

Hi all,

I'm an onbording programmer and also new to Telerik.  I'm taking a look at Telerik products.  More specificaly at the Windows form TreeView from VS 2019 VB.NET.

I just tried to create a new Windows form project and added a RadTreeView.  I try to add nodes but they don't show up in the TreeView.  What I'm I doing wrong ?

I'm attaching a picture of the verry simple code with hope this can help you.

This is my first time here so I'm not sure if:

- I provide appropriate information

- I'm at the right place for that type of support

Just let me know!

Erik

Hello Team,

I need to remove the spacing in the text right and left side, or the text needed to fit in the border. Please see the attached image.

Thanks.