Questions on UI for WPF Forum

1 answer

180 views

WPF Diagram ExportToImage (to png) has shape connectors visible on selected shapes.

When using ExportToImage (with the WPF Q3 2012 SP1 version) on a diagram with some shapes selected, the resultant image has the selected shape connectors rendered. See attached screen capture as an example.

I have tried to DeselectAll(), setting IsConnectorsManipulationEnabled false and setting IsManipulationAdornerVisible false just before exporting but none had any effect.

So is there a way of exporting the shapes without rendering the connectors of selected shapes ?

Many Thanks,

Diagram

answered on 30 Jan 2013

5 answers

431 views

Line breaks not reserved when copying from gridview to excel

Hi,

When I tried to copy mulitple rows and cells from RadGridView to MS Excel I found out that the line breaks in cell seemed removed. All statements in the cell present in one single line after pasting into MS Excel cell. Is there a solution to reserve the line breaks in the cell after copy/paste ?

BTW Last time I got confirmation that the copy of RadGridView will only contains plain text and the font size and font family will not be copied at all. Is that supported in latest version ?

Thanks,
Alex

GridView

answered on 30 Jan 2013

11 answers

543 views

Prism + Telerick = Memory Leak

Hello,

I am using WPF 4.0 and Prism 4.0 with MEF and the latest Radcontrols for WPF. I have 15 core modules containing mostly RadGridViews and RadCharts. These 15 modules are implemented as prism views in a single Window. All modules stay loaded as the application is expected to be long running. Three of the views toggle to a secondary view because I ran out of real estate on the screen.

The application is a read only dashboard so I am using MVVM without any command bindings. Viewmodels contain an ObservableCollection of the data class and bind to the Itemsource of the control. All Telerick controls are updating as the data source updates and seem to be operating fine.

However, I am experiencing a heavy memory leak that is mostly in Telerick code.

My profiler lists these classes as the highest offenders:
Telerick.Windows.Data.QueryableCollectionView
Telerick.Windows.Data.CompositeFilterDescriptorCollection
Telerick.Windows.Data.SelectDescriptorCollection
Telerick.Windows.Data.CompositeFilterDescriptor

Before each update I call Clear() on the ObservableCollection in the Viewmodel but this doesn't seem to help. I derive the Viewmodel from INotifyPropertychanged but it doesn't help and is not needed for update since the ObservableCollection takes care of it. If I raise the property changed event the leak only increases.

I have traced references in my profiler back to the shell and the prism region which live for the lifetime of the application.

Has anyone experienced this behavior? Are Telerick controls known to leak memory in Prism applications? This must be common scenario for Telerick controls althought I have found little on the web in regards to a Prism memory leak so thought I would post here.

Thanks in advance for any help.
Victor

General Discussions

answered on 29 Jan 2013

1 answer

163 views

Can't compile pane.GetParentToolWindow()

Hello,

i am trying to resize a radPane to fit its content when it's state changed to floating. I read in this forum that i should get the parent window and set the size of the parent toolwindow manually, but i cannot compile it:

'TelerikRadPaneTest.CustomPane' does not contain a definition for 'GetParentToolWindow' and no extension method 'GetParentToolWindow' accepting a first argument of type 'TelerikRadPaneTest.CustomPane' could be found (are you missing a using directive or an assembly reference?)

According to the official API the method should be in the assembly i am using:
2012.3.1129.40 Telerik.Windows.Controls
2012.3.1129.40 Telerik.Windows.Controls.Data
2012.3.1129.40 Telerik.Controls.Docking
2012.3.1129.40 Telerik.Controls.Navigation

MainWindow.xaml

<Window x:Class="TelerikRadPaneTest.MainWindow"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"

xmlns:c="clr-namespace:TelerikRadPaneTest"

Title="MainWindow" Height="350" Width="525">

<DockPanel>

<telerik:RadDocking PaneStateChange="RadDocking_PaneStateChange_1" telerik:AnimationManager.IsAnimationEnabled="False" HasDocumentHost="False" Margin="0,50,0,0" Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="2" Grid.RowSpan="2" telerik:StyleManager.Theme="Windows8" BorderThickness="0">

<telerik:RadSplitContainer telerik:ProportionalStackPanel.RelativeSize="120, 200" MinWidth="450" InitialPosition="DockedLeft" telerik:StyleManager.Theme="Windows8">

<telerik:RadPaneGroup>

<c:CustomPane CanUserPin="False" CanUserClose="False">

<ScrollViewer>

<TextBlock Text="Very Long Scrollable Text"/>

</ScrollViewer>

</c:CustomPane>

</telerik:RadPaneGroup>

</telerik:RadSplitContainer>

</telerik:RadDocking>

</DockPanel>

</Window>

MainWindow.xaml.cs

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Data;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Imaging;

using System.Windows.Navigation;

using System.Windows.Shapes;

using Telerik.Windows.Controls;

namespace TelerikRadPaneTest

{

/// <summary>

/// Interaction logic for MainWindow.xaml

/// </summary>

public partial class MainWindow : Window

{

public MainWindow()

{

InitializeComponent();

}

private void RadDocking_PaneStateChange_1(object sender, Telerik.Windows.RadRoutedEventArgs e)

{

var radDock = sender as RadDocking;

if (radDock.IsLayoutChanging)

{

var pane = e.OriginalSource as CustomPane;

if (pane != null)

{

var scrollviewer = pane.Content as ScrollViewer;

var view = scrollviewer.Content as TextBlock;

Size size = new Size(view.ActualWidth, view.ActualHeight);

Point loc = radDock.PointToScreen(new Point(0, 0));

//start, this won't compile

var win = pane.GetParentToolWindow();

//win.Width = size.Width;

//win.Height = size.Height;

//end

}

CustomPane.cs

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using Telerik.Windows.Controls;

namespace TelerikRadPaneTest

{

public class CustomPane : RadPane

{

public CustomPane()

: base()

{

base.ContextMenuTemplate = null;

}

protected override void OnMouseEnter(System.Windows.Input.MouseEventArgs e)

{

this.ChangeVisualState(true);

}

protected override void OnMouseUp(System.Windows.Input.MouseButtonEventArgs e)

{

base.OnMouseUp(e);

if (!this.IsPinned)

{

this.IsPinned = true;

}

Docking

answered on 29 Jan 2013

2 answers

138 views

Textbox will not remain in focus on when in Menu

I have added a text box into a menu with the following code.

<telerik:RadMenuItem x:Name="EmployeeLookupMenuItem" StaysOpenOnClick="True" >

<telerik:RadMenuItem.Header>

<StackPanel>

<telerik:RadWatermarkTextBox Name="EmployeeLookupTextBox" KeyUp="EmployeeLookupTextBox_KeyUp" WatermarkContent="Employee ID" Width="100" />

</StackPanel>

</telerik:RadMenuItem.Header>

</telerik:RadMenuItem>

The text box appears however when I click in it to type something it will only stay in focus while the mouse button is down. As soon as I release the mouse button it loses focus and I can no longer type in the box.

Why can I not type in the textbox?

Menu

answered on 29 Jan 2013

1 answer

252 views

RadComboBox not in my toolbox

Hey, I'm using Visual Studio 2012 and have a C# based WPF project. I've imported the telerik controls into my toolbox and it looks like they're all there except for the RadComboBox. I can access the RadComboBox library in the code, just can't see it in my toolbox to place in forms. I've tried switching the version number of my project, but it still doesn't show up. Is there something I need to do to import the RadComboBox to the toolbox?

ComboBox

answered on 29 Jan 2013

2 answers

151 views

X-Axis label values not populating

Hello, I'm creating a bar chart. My AxisY is a integer count and my AxisX is a string for a build number.

My ItemSource is pointing to an

ObservableCollection<Tuple<string, int>>

If I have 30 build buckets, when viewing my chart the buckets for my AxisX are numbered 1-30, instead of the string buildnumber. How can I get my buildnumber to show up as the tick name instead of this 1-30?

Thanks, Josh

Image Example

<telerik:RadChart x:Name="radChart" ItemsSource="{Binding DataPoints}"

Visibility="{Binding ServiceState,

Converter={StaticResource EnumToVisibilityConverter},

ConverterParameter=ServiceOk}">

<telerik:RadChart.DefaultView>

<telerik:ChartDefaultView>

<telerik:ChartDefaultView.ChartArea>

<telerik:ChartArea>

<telerik:ChartArea.AxisX>

<telerik:AxisX IsDateTime="False"

LayoutMode="Auto"

Title="Build"

LabelRotationAngle="55"

Visibility="Visible"/>

</telerik:ChartArea.AxisX>

<telerik:ChartArea.AxisY>

<telerik:AxisY Title="Unique Crashes"

Visibility="Visible" />

</telerik:ChartArea.AxisY>

</telerik:ChartArea>

</telerik:ChartDefaultView.ChartArea>

</telerik:ChartDefaultView>

</telerik:RadChart.DefaultView>

Chart

answered on 29 Jan 2013

1 answer

302 views

Automatic sorting event when cell is edited

Hi,

I'm struggling on a sorting problem. I have 2 gridviews that are bound to the same list. Only one of the gridviews is editable. The other one is for reporting purposes only and so readonly.

Because they represent the same data, the filtering and sorting must be syncronized. For the sorting part, I've added a 'Sorting' event on grid n°1. In the event handler I copy the sorting descriptors into the second grid. This works fine.

private void GridViewSorted(object sender, GridViewSortedEventArgs e)

{

var datagrid = sender as RadGridView;

if (datagrid == null || !datagrid.Equals(EmployeeGrid)) return;

FormationGrid.SortDescriptors.Replace(datagrid.SortDescriptors);

}

When I edit a cell of one of the sorted columns in grid n°1, the grid is automatically sorted according to the existing sorting of that column. This is desired off course.
However, the event 'GridViewSorted' isn't called and thus my second grid doesn't sort, which makes that my grids aren't sorted equally anymore.

Does anybody have some advice on how to make sure my both grids are synchronized after a cell edit?
I've tried following already, but sorting on the 2nd grid just kicks in, when you enter and leave the same cell again after you've edited it.

private void EndCellEdit(object sender, GridViewCellEditEndedEventArgs gridViewCellEditEndedEventArgs)

{

var datagrid = sender as RadGridView;

if (datagrid == null || !datagrid.Equals(EmployeeGrid)) return;

FormationGrid.SortDescriptors.Replace(datagrid.SortDescriptors);

}

GridView

answered on 29 Jan 2013

1 answer

236 views

map

Hi,
I'm new to WPF and telerik and tried to download the example demo Bing and openstreetmap providers
when i try to run it i get a lot of errors and this has been happening to me with all the demo examples.

can someone attach a working project for any map. so I can start from there

or what do i have to change to make the code run beside :

<UserControl x:Class="Telerik.Windows.Examples.Map.Shapefile.WorldContinents.Example"
to be :
<UserControl x:Class="my space name"

delete xmlns:telerikQuickStart="clr-namespace:Telerik.Windows.Controls.QuickStart;assembly=QuickStart.Common"

I keep getting error in this line only:

<UserControl.Resources>
<example:ShapefileViewModel x:Key="DataContext" Region="world_continents" />
</UserControl.Resources>

ShapefileViewModel ??!!!

thank you

Map

answered on 29 Jan 2013

3 answers

121 views

ScrollTimeRuler Doesn't work in a MVVM Scenario

Hello,
WPF controls version: 2012.2.0912.40

I'm attempting to create one (1) scheduleview for multiple employees. (We're using the Day and Week View Definitions only). The goal is to be able to view different "Work Schedules" of several employees. So if I check the employee's name, the scheduleview should only display that employee's work schedule (i.e,. 8am to 5pm, or 9am to 6pm, etc). I can do this fine in code behind using the ScrollTimeRuler(just as a sample), but we are using MVVM and I do not see a way to call ScrollTimeRuler from my ViewModel.

Is this possible? and/or do you have any suggestions or samples?

Thanks,
Brian Foster

ScheduleView

answered on 29 Jan 2013