Hello,

I would like to ask for help with designing parameter editor with subitems. I have editor of test items, each item has some parameters and tolerances (Min, Max). Standard tests have just main tolerances, but some tests have also subitems. More precisely, if test has subitems, only subitems have tolerances, main tolerances are not used. Columns for items and subitems are almost the same, items have parameters and subitems don't have any parameters, but there is just a name of subitem instead of test type of parent item. So first attempt of editor looks like this:

One small question to this solution, how can I show "+" only if there are some subitems?

But I am not satisfied with that design, subitems have own border, own column headers, it's little bit confusing and not very clear. I know it's standard way of master-detail views, but in this case, I would prefer design similar to self referencing hierarchy, because columns are almost the same, just some cells are empty and I have name of subitem name instead of test type.

I have made a second test with selfrefencing and changed the screenshot a little bit to show you what I am trying to achieve. Is it possible to have view similar to this?

I think I can do it with some modified data structures specialized for editor, I can use nullable properties for tolerances and parameters to hide certain cells, handle some events to have those empty cells readonly, maybe it would be tricky to show indented subitem name in test type combo box column, but I think this solution would be a little bit ugly. Is there any better way to do this?

I have attached my test project for tests.

Hi!

When using CopyingCellClipboardContent the event is fired x3 times in each cell (once for each supported format). So if I have selected 5 cells the copy will trigger the event 15 times. Is there any kind of event for multiple copies?

Hi,

My team is trying to make an update from WinForms 2015.1.331 to the Latest 2024 Q1 Update 2024.1.130. Asked me for the comparison RadGridView component features until 2015 Q1 version(current) vs the rest of improvements/features from current to 2024 Q1 version. Is there a better way to get this comparision without scrolling through all releases and noting down the features and manually analyzing?

I doubt that this is an issue with the WinForms controls but I'll ask anyway in case anyone has experienced this problem (and I haven't found any solution searching the web).  My project is MDI with seven child forms so far.  After a few months of development I finally experienced a problem when I select several of my menu options (launch several child forms).  It doesn't matter what the order I select the menu options; the third menu option, whichever option that happens to be, gets a System.NullReferenceException.

The code for each menu option is this pattern:

The error happens at objDULAudit.Show(); (in this code example).  

System.NullReferenceException was unhandled
  HResult=-2147467261
  Message=Object reference not set to an instance of an object.
  Source=System.Windows.Forms
  StackTrace:
       at System.Windows.Forms.NativeWindow.WindowClass.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
  InnerException: 

I stepped through every line of code (as the child form instantiates) trying to run into the problem but I have not been successful.

Any ideas?

Thank you,

Gary

the data has been bind to radgirdview ,how to set the rowspan at runtime ? because must use set DataSource method to render data ,so cann't render the gridview cell by cell.

In the screen capture below I have a RadGridView in a RadCollapsiblePanel. I need to hide the border for both the CollapsiblePanel and the PanelContainer. 

I tried the code below - which I found on another form post = but to no avail:

radCollapsiblePanel1.ControlsContainer.PanelContainer.BorderStyle = System.Windows.Forms.BorderStyle.None;                   radCollapsiblePanel1.ControlsContainer.PanelElement.Border.Visibility = ElementVisibility.Collapsed;

What am I doing wrong?

Thanks

Carl

Hello,

I am looking for a freelance GUI Designer familiar with Telerik UI for Winforms for an internal Project

best regards

Stefan

I have a completely new winforms project. The only thing I adjusted was to change the target framework from .NET6 to .NET7 in the projects properties.

Now, each time I minimize (or maximize) a RadForm and then "normalize" it again, it is getting larger (some pixels to the right and to the bottom). This does not happen on .NET6 but on .NET7 and .NET8.

There is also an issue within the VS designer: When I open the form again its size is also slightly different (e.g. set to "300; 300" changed to "318; 243"). It also does not matter if I change the forms AutoScale value to "None", "Font", "DPI" or "Inherit".  Furthermore, I have no strange scaling in MS Windows, it is set to 100 %.

What is the reason for this behaviour and what do I need to do to prevent it?

I would also like you to check if this occurs to other controls, as well.

Hi,

Is it possible to modify mp4 output settings to increase video quality?

Currently it seems to be fixed at around 4 mbps which results in poor quality for full hd.

Thanks

Arturo