Questions on UI for WPF Forum

6 answers

322 views

Change displayed text for distinct filters

Is it possible to change the text of the checkboxes that are shown for the distinct filters in the filter popup?

I have a RadGridView where one of the column is of type nullable bool. I have a cell edit template for this column with a RadComboBox that has two options, 'Yes' and 'No', that of course corresponds to True and False. Also I have set ClearSelectionButtonVisibility="Visible" on the RadComboBox so that the user can set the value to null. This works fine.

My problem is that in the filter popup of the column I have dinstict filters with the three available options true, false and null. This also works fine BUT the text of the checkboxes show 'True', 'False' and '' (empty string) respectively. I would like them to show the same as in my ComboBox, that is 'Yes' and 'No' instead.

Is this possible to accomplish, and in that case how?

GridView

answered on 01 Jul 2020

2 answers

331 views

Creating custom column filter for boolean value column

I have a column in my GridView that consist of boolean values. These values are used to show an icon in the column. Now I want to be able to filter the column so that I can select rows that contain an icon, or rows that does not.

Currently my filter does not contain any values to filter from. First I want to be able to filter the column. Second I want to customize the names for the checkboxes. So instead of just saying "True" and "False", I would like them to say "My custom string representing the true value" and "My custom string representing the false value".

Is this possible, and how would one go about creating this?

GridView

answered on 01 Jul 2020

2 answers

121 views

it's stuck when Containershape PositionChanged

hello,

i have a problem that containershape's bounds arrange.

I try to arrange "Shape" and "ContainerShape" at regular intervals vertically.

ContainerShape should have inner Containers or Shapes. and ContainerShape linked by others. (connector are located top and bottom. each connector connected on link)

if drag or drop event routed, then arrange items. AutoLayout. (custom layout)

each item's position be changed. method working successful.

But Speed issues arise through the "OnPositionChanged" event of "ContainerShape".

for example,

A,B,C is ContainerShape. and B,C is inner Container in A.

i recognized,

A's OnPositionChanged occur

B's OnPositionChanged occur

B's CalculateContentBounds occur

C's OnPositionChanged occur

C's CalculateContentBounds occur

A's CalculateContentBounds occur

problem,

Changing the position of the "A" connected to each other (D or E etc) causes a pause for a moment before the "A's CalculateContentBounds occur" occurs.

I don't know how to prevent the pause.

If i block the "OnPositionChanged" event, then arranging is failed but, a paused issue doesn't occur.

Diagram

answered on 01 Jul 2020

1 answer

184 views

Remove arrow-columns from grouped table

Hi Telerik

I have a RadGridView with grouped data on 2 properties (ie 2 RadGridView.GroupDescriptors in xaml). This works great.

Visually I would like to save some space on the left side by removing the extra columns that is created for each of the grouping (see attached image).

Preferably also move in the collapse-expand arrow, but that would be more of a bonus.

Im suspecting I have to paste in the entire GridViewNewRowTemplate and change the part_indicatorpresenter from theGridView-xaml, but I hope I can do something lessradical

Thanks in advance, Robert

GridView

answered on 30 Jun 2020

0 answers

90 views

How to create Table from WorkSheet along with styles

Hi

I am trying a following case to export to pdf from a raggridview, with a repeating header on each page.

By refering to some forum queries i could do pdf export with defined column widths to columns and wraps.

For repeating header I am trying to create a RadDocument with a Table as table can do repeat headers on each page.

Can you please help me create tablecells from Worksheet with same style and column widths and fonts?

Thanks & Regards,

Sunil

GridView

asked on 30 Jun 2020

18 answers

669 views

RadGridView duplicates data from ObservableCollection

I have a RadGridView bound to an ObservableCollection. This collection is constantly updated and on the first binding, the grid shows the data correctly. But then when I rebind the collection (through a search button), it duplicates the rows while the underlying collection contains correct data.

It only happens when the LoadData mode is Asynchronous. If I change it to Synchronous, it does not happen.

Besides, on the OnItemSourceChanged I modify the filterDescriptor. I know that Rebinding the collection on the event OnItemSourceChanged is very expensive and it is not an option.

It does not happen when debugging it either. Only in execution time. And it does not happen when putting a Thread.Sleep on the load. That is the reason why I am positive that it is an issue of synchronizing the threads. As the Asynchronous mode loads the data in a different thread while it only shows the ones fitting the grid, it has a thread to show the data on the UI and another to populate it. If we add processing to the OnItemSourceChanged, the thread will not wait (or join) the other (the one displaying the data) and will duplicate it in execution time.

Of course that when debugging it, we will see in the thread stack that there are 2 main threads, one drawing and the other one in wait/join state. As it is a bundled in resource (LoadDataMode="Asynchronous"), I can not override the handlers of the background worker that performs these actions. I can always use another technique to load up the required information asynchronously (like a backgroundworker handling the doWork events and changing the displayed data on the scroll down event, for example; also with paging programatically; restful services; etc). But I wanted to use the Telerik recommended controls.

Is there a way to override the handling of those different threads so that I can light them up and synchronize them on my own? Could there be another solution to this issue?

GridView

answered on 30 Jun 2020

0 answers

92 views

Save Collapsed ContainerShape

hello,

i'm in trouble when saved collapsed ContainerShape is loaded.

A single ContainerShape doesn't matter, but the problem is that ContainerShape in collapsed ContainerShape is always loaded collapsed.

It doesn't matter inner ContainerShape's collapse saved state.

it cause a situation when parent collapsed ContainerShape's property makes false, child ContainerShape' collapsed is always true.

Diagram

asked on 30 Jun 2020

5 answers

279 views

Remove the single selection tag template

Hi Team,

I would like to disabled the selected item template that we display when a single item is selected and behave it like combo box where clear button (x) is placed at the end.

Thanks

MultiColumnComboBox

answered on 29 Jun 2020

3 answers

113 views

Tab Navigation of Form Fields

Hi

In the WPF PDFViewer, there doesn't currently appear to be a way to tab (or use any other keyboard navigation) between form fields.

I see that this has been on the feedback portal for 2 years: https://feedback.telerik.com/wpf/1354935-pdfviewer-support-for-tab-navigation-between-form-fields

Is there a way to work around this limitation and allow clients to use keyboard navigation between fields?

Thanks

Guy

PDFViewer

answered on 29 Jun 2020

3 answers

292 views

RichTextBox.Print() customize to set File Path?

Hello,

Thank you for your good control and service.

As I know RichTextBox still doesn`t support export to Pdf with Track Changes

By this reason I try to use RichTextBox.Print() function to export content with Track Changes to pdf ("Microsoft Print to Pdf" or any analog)

The problem is just I can`t set exact filename path or at least propose recommended file name to user, before print. Here is my code, which is like your RichTextBox/CustomizingPrint from GitHub:

(Editor is my RichTextBox)

private void Print_Click(object sender, RoutedEventArgs e)

{

RadDocument document = Editor.Document;

PrintSettings settings = new PrintSettings()

{

DocumentName = "Output_20200625.pdf", // Nope, I need Path to save

PrintMode = PrintMode.Native,

PrintScaling = PrintScaling.None,

UseDefaultPrinter = true

};

if (document != null)

{

PrintDialog printDialog = new PrintDialog();

PrintQueue printQueue = FindPrintQueueByName("pdf");

if (printQueue == null)

{

printQueue = printDialog.PrintQueue;

}

int pagesCount = document.FirstLayoutBox.Children.Count;

printQueue.DefaultPrintTicket.PageMediaSize = new PageMediaSize(PageMediaSizeName.ISODLEnvelope);

printDialog.PrintQueue = printQueue;

printDialog.MinPage = 1;

printDialog.MaxPage = (uint)pagesCount;

//DocumentPrintPresenter documentPrintPresenter = new DocumentPrintPresenter(settings); // RadDocument Print Document?

Editor.Print(printDialog, settings);

}

private PrintQueue FindPrintQueueByName(string name)

{

PrintServer server = new PrintServer();

foreach (PrintQueue queue in server.GetPrintQueues(new EnumeratedPrintQueueTypes[] { EnumeratedPrintQueueTypes.Connections, EnumeratedPrintQueueTypes.Local }))

{

if (queue.Name.ToLowerInvariant().Contains(name))

{

return queue;

}

return null;

}

Is any idea how can I make it, or any alternate method? May be Xps, then Pdf?

Thank you!

RichTextBox