Advice on the best way to implement this...

Thank you Dinko for your response.

In fact, I chose to use a RadListView following the example of the demo application where cars are listed (custom listView). I opted to use a GridLayout instead of a StackLayout and I am deciding based on the update status whether to show a RadDropDownButton or a RadProgressBar. (so I draw a RadDropDownButtonElement and a RadProgressBarElement inside the GridLayout). However, now I have the following problem: the update downloads are an asynchronous operation and I need to show on the row corresponding to the software I am updating the progress in %. I can't figure out the best way to do it. Currently, I am trying to do it through .invoke on the radListView...but the progress is not visible. Any help? Is there anything I need to know about updating one of your controls from a task that is not the main form? Best regards.

...To clarify: I may have n software being updated, and asynchronously, I am downloading the files for the update, and I should update a progress bar indicating the progress.

like in this screenshot:

Perhaps I have found a solution: from the asynchronous task, I need to instruct the RadListView control to update the row whose object is CDataObject (data bound item) using listView.Invoke. Then, in the custom listView, I can access the 'custom' visual element using:

CRigaCustomListView customRow =
listView.ListViewElement.ViewElement.GetElement(item) as CRigaCustomListView; 

... thereafter, I can access the individual controls that have been rendered within the custom row (e.g., the progress bar).

You are in the right direction. Note that all UI controls are not thread-safe controls in the whole Windows Forms platform (not just Telerik controls, but all controls out there). Here is an article on MSDN, describing how to make thread-safe Winforms UI applications. This means that any control from the Telerik UI for WinForms suite is not thread-safe as well and cannot be used outside the main UI thread. You should use an Invoke (as you have already done) to update the controls in cross threading scenario.

Hello Dinko,

I still need to solve the following issues: for clarity, I'm attaching a screenshot below:

1) the RadApplicationMenu component (1) doesn't seem to adjust in height, it's like it has a fixed height that doesn't fill the container, also I would like it to be white with small gray horizontal lines... is it possible?

2) The RadDropDownButtonElement component (2,3) is inserted into a GridLayout, but I would also like to give it a customized look, e.g., a blue background instead of gray, rounded borders instead of rectangular... similarly, in case 3) I would like the gray button outlines not to be visible. Can I do all these things?

In case it might be useful for other programmers in the community... I solved the problem regarding the customization of the style of the elements in a custom listview by moving the style application that was previously in "CreateChildElements" to the "SynchronizeProperties" function.

example : styling the button (2) for rounded shape and backcolor:

//action button = la parte bottone del dropdownbutton
RadButtonElement actionButton = this.btnSceltaAggiornamento.ActionButton;
actionButton.ButtonFillElement.BackColor = coloreSfondoSceltaAggiornamento;
actionButton.ButtonFillElement.GradientStyle = Telerik.WinControls.GradientStyles.Solid;
actionButton.Shape = new RoundRectShape(8,true,true,false,false);
actionButton.ForeColor = Color.White;

//arrow button = la parte con la freccia del dropdownbutton
RadArrowButtonElement arrowButton = this.btnSceltaAggiornamento.ArrowButton;
arrowButton.Fill.BackColor = coloreSfondoSceltaAggiornamento;
arrowButton.Fill.GradientStyle = Telerik.WinControls.GradientStyles.Solid;
arrowButton.Shape = new RoundRectShape(8, false, false, true, true);

Good job, everyone

Alessandro