Questions on UI for WPF Forum

1 answer

211 views

ToolWindow issue with different monitor DPI

Telerik version 2020.1.218.45
App.config
dpiAware set true.

ToolWindow AllowTransparency = false.

1.Create the ToolWindow with owner MainWindow on the main monitor with dpi 125.
2. Drag the window onto the second monitor with 100 DPI.
3. I remove the Owner (set null).

Result issue:
Changes the size and position (applies the setting of the monitor DPI)

If you enable the setting dpiAwareness PerMonitor, (after window owner set null) a black square flickers.

Docking

answered on 16 Apr 2020

1 answer

121 views

FontFamily has changed after exporting to docx

Hello, I set the font of the paragraph in the richbox to FangSong(仿宋).But when I save it as docx and opened it in Word, it became SimSun（宋体）. What do I need to set ? Help me Please,Thanks

RichTextBox

answered on 16 Apr 2020

7 answers

286 views

How to display warning icon in overlapping appointments?

Hi,

I am using RadScheduleView for WPF. I have a requirement where I have to set a warning icon for overlapping appointments only. I tried with AppointmentItemContentTemplate="{StaticResource AppointmentTemplate}". However the icon gets displayed in all appointments. Is there any way to set style in such a way that only slots with multiple appointments have warning icon. Please help.

Attaching the image.

General Discussions

answered on 16 Apr 2020

8 answers

485 views

RadPane size changing on float

I would like the RadPane to stay the same size when the users drags it to make it go from being docked to being floating, currently it resizes itself. I've seen this thread, but that does not cover how to actually keep it the same size as when it was docked. Possibly another technique would be to use the attached property RadDocking.FloatingSize and bind it to something rather than setting an absolute value, I don't know how this would work though.

thanks

Docking

answered on 16 Apr 2020

3 answers

153 views

Connectors don't appear when ContainerShape's template style customize.

Connectors don't appear when ContainerShape's template style customize.

In detail, ContainerShape style is my own Customized one. the style has setter "Template", not "ContentTemplate".

when used Customized ContentTemplate, then appear Connectors. but used Customized Template, doesn't appear Connectors.

Though it doesn't appear Connectors, Can connect links with other shapes on behind code.

I think it that ContainerShape has connectors, but doesn't appear connector because customize using Template, not ContentTemplate.

but I must use a customized template......
Please, how can I appear Connectors, when I use style to customizing Template.

Always Thank you for your help.

Diagram

answered on 16 Apr 2020

0 answers

196 views

Data virtualization and asynchrounous loading, search and filtering with Entity Framework

I am doing data virtualization using VirtualQueryableCollectionView.

I pass there IQueryable from EF.

var db = new ProductionContext();

IQueryable cards = db.Cards.OrderBy(x => x.CardId);

var view = new VirtualQueryableCollectionView(cards) { LoadSize = 50 };

cardsRadGridView.ItemsSource = view;

Its works fine. But how to make it asynchronous? (asynchronous loading, search, filtering) I searched for examples but found only examples for WCF like bellow

https://www.telerik.com/blogs/telerik-data-virtualization-wcf-ria-services-and-visual-studio-async-ctp?_ga=2.125533513.2135094116.1586865074-1480584776.1567419497

I tried to do the same for the EF

var db = new ProductionContext();

IQueryable cards = db.Cards.OrderBy(x => x.CardId);

Loaded += async (o, args) =>

{

var view = new VirtualQueryableCollectionView<Card>

{

LoadSize = 50,

VirtualItemCount = await TaskEx.Run(() => cards.Count())

};

view.FilterDescriptors.CollectionChanged += async (s, e) =>

{

view.VirtualItemCount = await

TaskEx.Run(() => cards.Where(view.FilterDescriptors).Count());

};

view.FilterDescriptors.ItemChanged += async (s, e) =>

{

view.VirtualItemCount = await

TaskEx.Run(() => cards.Where(view.FilterDescriptors).Count());

};

view.ItemsLoading += async (s, e) =>

{

var queryToLoad = cards

.Sort(view.SortDescriptors)

.Where(view.FilterDescriptors)

.Skip(e.StartIndex)

.Take(e.ItemCount);

cardsRadGridView.IsBusy = true;

view.Load(e.StartIndex, await TaskEx.Run(() => queryToLoad.ToIList()));

cardsRadGridView.IsBusy = false;

};

cardsRadGridView.ItemsSource = view;

};

but it does not work(

Where can one find a good example of implementing this?

GridView

asked on 16 Apr 2020

9 answers

1.7K+ views

Status Bar

Do you guys have any plans to implement a WPF status bar or is there a good way/example of using the toolbar control to imitate a status bar?

Thanks!

ToolBar

answered on 15 Apr 2020

1 answer

98 views

XmlFoldingTagger unhandled exception

When remove last bracket (>) in the XML with registered XmlFoldingTagger we get unhandled exception in the function GetFoldingRegionTitle because you are trying call Substring with -1 parameter.

SyntaxEditor

answered on 15 Apr 2020

1 answer

528 views

WPF maxing out chart performance?

I am rendering 50,000 data points per seconds one 3 charts my UI freezes at that point... I am running 3 charts updating in real time with new data points coming in every second so I add them to the collection, I am implementing data virtualization for the scrolling but when scrolled out and a large number of samples is where I see the freeze. They are scatter series and I am not using a point template I have rendering set to bitmap and "Batch" Is there any other ways to significantly improve the performance? My process is only using 20-30% CPU and 400-600mb ram I have tried it on a box with a GPU also with no better result... I am stumped on this one guys.

Thanks!

Chart