Questions on UI for WPF Forum

1 answer

300 views

Hi,
I can not determine the coordinates of a mouse click on a pdf page.
I would like to save the coordinates and page number in a "bookmark" for then navigate these bookmarks using the method GoToDestination.

Can you help me?

Clement

PDFViewer

answered on 25 Jul 2014

15 answers

453 views

GridView memory leak (ScrollViewer event handler)

Hello. I have big problem. I have application with next structure: ... -> ScrollViewer -> Canvas -> ContentControls (many) -> GridView.

When I remove one ContentControl with GridView from Canvas, GridView is still be in memory. It occurs because the gridView has SizeChangedEventHandler (see attached image).

I deleted ScrollViewer from application and now gridView delete from memory.

Full Call stack from attached image

Telerik.Windows.Controls.GridView!Telerik.Windows.Controls.GridView.GridViewDataControl.EnsureInternalScrollControls() GridViewDataControl.cs

Telerik.Windows.Controls.GridView!Telerik.Windows.Controls.GridView.GridViewDataControl.get_InternalScrollHost() GridViewDataControl.cs

Telerik.Windows.Controls.GridView!Telerik.Windows.Controls.GridView.GridViewHeaderRow.MeasureOverride( Size ) GridViewHeaderRow.cs

PresentationFramework!System.Windows.FrameworkElement.MeasureCore( Size )

PresentationCore!System.Windows.UIElement.Measure( Size )

PresentationFramework!System.Windows.Controls.Grid.MeasureCell( int,bool )

PresentationFramework!System.Windows.Controls.Grid.MeasureCellsGroup( int,Size,bool,bool )

PresentationFramework!System.Windows.Controls.Grid.MeasureOverride( Size )

PresentationFramework!System.Windows.FrameworkElement.MeasureCore( Size )

PresentationCore!System.Windows.UIElement.Measure( Size )

PresentationFramework!System.Windows.Controls.ScrollViewer.MeasureOverride( Size )

Telerik.Windows.Controls.GridView!Telerik.Windows.Controls.GridView.GridViewScrollViewer.MeasureOverride( Size ) GridViewScrollViewer.cs

PresentationFramework!System.Windows.FrameworkElement.MeasureCore( Size )

PresentationCore!System.Windows.UIElement.Measure( Size )

PresentationFramework!System.Windows.Controls.Grid.MeasureCell( int,bool )

PresentationFramework!System.Windows.Controls.Grid.MeasureCellsGroup( int,Size,bool,bool )

PresentationFramework!System.Windows.Controls.Grid.MeasureOverride( Size )

PresentationFramework!System.Windows.FrameworkElement.MeasureCore( Size )

PresentationCore!System.Windows.UIElement.Measure( Size )

PresentationFramework!System.Windows.Controls.Border.MeasureOverride( Size )

PresentationFramework!System.Windows.FrameworkElement.MeasureCore( Size )

PresentationCore!System.Windows.UIElement.Measure( Size )

PresentationFramework!System.Windows.Controls.Control.MeasureOverride( Size )

Telerik.Windows.Controls.GridView!Telerik.Windows.Controls.GridView.GridViewDataControl.MeasureOverride( Size ) GridViewDataControl.cs

PresentationFramework!System.Windows.FrameworkElement.MeasureCore( Size )

[Truncated]

Can you help me?

Thanks

GridView

answered on 25 Jul 2014

4 answers

876 views

dropdown menu doesn't close after clicking

Hi I am using RadMenu. I want the dropdown menu to close after one of the menuitems clicked.
I am using the attached code but it doesn't close at this point. I need to click outside of the menu to close that dropdown options. Please help.

<Button Style="{StaticResource AddButton}">

<telerik:RadContextMenu.ContextMenu >

<telerik:RadContextMenu EventName="Click" ItemsSource="{Binding NewEntityMenuItems}" StaysOpen="False">

<telerik:RadContextMenu.ItemTemplate>

<DataTemplate>

<telerik:RadMenuItem Header="{Binding Text}" Command="{Binding MenuItemClickedCommand}" StaysOpenOnClick="False"></telerik:RadMenuItem>

</DataTemplate>

</telerik:RadContextMenu.ItemTemplate>

</telerik:RadContextMenu>

</telerik:RadContextMenu.ContextMenu>

</Button>

Menu

answered on 25 Jul 2014

1 answer

169 views

How to set DataTemplates for bound RadPaneViewModels? (PanesSource, MVVM)

I worked through RadDocking documentation and also a lot of your (SDK) examples but I still did not find out how to set the DataTemplate of a RadPane.

In my project I use the same approach as in your SDK example "VisualStudioDocking_WPF" so RadDocking.PanesSourceis bound to an ObservableCollection<PaneViewModel>. With that I can dynamically add RadPanes on my RadDocking.DocumentHost in an MVVM friendly way. That's nice but sadly the example ends here - each RadPane is an empty Control just showing the TypeName of the ViewModel.

In my CustomDockingPanesFactory.CreatePaneForItem I set the following properties:

pane.DataContext = paneViewModel;

pane.Header = paneViewModel.UserControlViewModel.Header;

pane.Content = paneViewModel.UserControlViewModel;

What I need is an example of how to set the DataTemplates for my RadPanes. Is there a clean way to set the DataTemplates and the DataTemplateSelector on XAML?

Docking

answered on 25 Jul 2014

1 answer

863 views

Edit cell on single clicl only, and not double click ?

Hi.

I was wondering if it's possible with a RadGridView to have the double click event not enable edits on the cell ?
Single click edits work fine, but double clicks activate another view, and I do not want the cell being in an editable state at this point.

Is there a solution to this ?

Thanks.

GridView

answered on 25 Jul 2014

4 answers

86 views

CustomAppointment with Recurrency will not open for edit

In my project it seems that I cannot open custom appointments that have a recurrency set. How can I debug this since no exception is thrown?
Should I try to investigate the Telerik source codes? If so, where to begin?

I tried with a simpler project and then it works. However after hours of investigating I don't know where to look at.

Some details about the project:
- Telerik.Windows.Controls.ScheduleView version: 2014.2.617.45
- CustomAppointment
- Custom Resource
- Custom EditAppointmentTemplate and a Custom ViewModel behind it

Thanks,

Jim

ScheduleView

answered on 25 Jul 2014

1 answer

192 views

Grid inside TileView

Hello everyone,

I'm using RadTileView and I've decided to use Grid inside tileview for items positioning. But it causes top bar with maximize/minimize button. Here is my code and the result is displayed in picture(TileWithGrid.png).

<telerik:RadTileView x:Name="tileView" >

<Grid >

<Grid.RowDefinitions>

<RowDefinition />

</Grid.RowDefinitions>

<Grid.ColumnDefinitions>

<ColumnDefinition Width="2.5*" />

<ColumnDefinition Width="*" />

</Grid.ColumnDefinitions>

<telerik:RadTileViewItem Background="Red"

Header="Item 0"

Style="{DynamicResource RadTileViewItemStyle}"

Grid.Row="0" Grid.Column="0"

DataContext="{StaticResource NewTile}"/>

<telerik:RadTileViewItem Background="Blue"

Header="Item 0"

Style="{DynamicResource RadTileViewItemStyle}"

Grid.Row="1" Grid.Column="0"

DataContext="{StaticResource RecentTile}"/>

<Grid>

<telerik:RadTileViewItem Background="Orange"

Header="Item 0"

Style="{DynamicResource RadTileViewItemStyle}"

Grid.Row="0" Grid.Column="1" Grid.RowSpan="2"

DataContext="{StaticResource ErrorsTile}"/>

</Grid>

</telerik:RadTileView>

</Grid>

But when I remove Grid inside TileView top bar disappears. Here is code without Grid and the result is displayed in TileWithoutGrid.png

<Grid>

<telerik:RadTileView x:Name="tileView" >

<telerik:RadTileViewItem Background="Red"

Header="Item 0"

Style="{DynamicResource RadTileViewItemStyle}"

DataContext="{StaticResource NewTile}"/>

<telerik:RadTileViewItem Background="Blue"

Header="Item 0"

Style="{DynamicResource RadTileViewItemStyle}"

DataContext="{StaticResource RecentTile}"/>

<telerik:RadTileViewItem Background="Orange"

Header="Item 0"

Style="{DynamicResource RadTileViewItemStyle}"

DataContext="{StaticResource ErrorsTile}"/>

</telerik:RadTileView>

</Grid>

So how can I mix TileView with Grid without top bar displayed?

TileView

answered on 25 Jul 2014

3 answers

227 views

Cursor is flashing while moving

Hello, our QA are asking me to solve some strange problem with cursor behavior. If i have some text in radrichtextbox and i'm holding Left or Right arrow button, cursor moves. And it continues flashing while moving.

This behavior look pretty strange for our users and testing engineers. For example microsoft office and WPF native RichTextEditor cursors flash only in stationary mode. And they are solid while moving.

Is there any way to change cursor behavior in this case?

RichTextBox

answered on 25 Jul 2014

7 answers

153 views

Adding many shaps are slowly

Hi,

I have a very big problem: when I add many shapes (>100), the paint is very slowly. First, I calculate the position in background (for put the shapes one next to each other) and I paint (diagram.AddShape()) after.

Can somebody help me?

Thanks.

Diagram

answered on 24 Jul 2014

1 answer

691 views

How to change row hover and selection color?

I implemented a GridView user control (actually a TreeListView control) where I use a custom RowStyleSelector to color specific rows differently based on some GridView cell value. This works just fine.
The problem is that if I hover over a row or select an entire row, the custom color of my RowStyleSelector will be covered. My idea now is to have just a thin border around the entire row as hover or selected row indication instead of a full gradient fill color. That way my specific row color will still be visible.

I found this thread:
http://www.telerik.com/forums/changing-the-highlight-selection-color-for-an-entire-row

Wow, this is quite involved. Isn't there an easier way to achieve what I intend to do?

Any help is very much appreciated.

Thanks,
Markus

GridView

answered on 24 Jul 2014