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I have the following XAML for a context menu which has a DataTemplate to show custom menu content using a ContentPresenter, but it does not close when the content in the ContentPresenter is clicked, it only closes when I click on content outside of the ContentPresenter.

Why is this happening?

Also, why doesn't the ContentPresenter fill the available MenuItem header, even with 'Stretch' for both the horizontal & vertical alignment is does not fill the available space?

Thanks.
<telerik:RadContextMenu.ContextMenu>
    <telerik:RadContextMenu x:Name="radContextMenu" Placement="Bottom"
                    Visibility="{Binding Path=HasContextMenu, Mode=OneWay, Converter={StaticResource BooleanToVisibilityConverter}}"
                    ItemsSource="{Binding Path=ContextMenu, Mode=OneWay}">
        <telerik:RadContextMenu.Resources>
            <DataTemplate DataType="{x:Type vm:MenuCustomViewModel}">
                <telerik:RadMenuItem x:Name="CustomMenuItem"
                                Command="{Binding Path=Command, Mode=OneWay}">
                    <telerik:RadMenuItem.Header>
                        <ContentPresenter x:Name="MenuContentPresenter"
                                    Content="{Binding Path=Content, Mode=OneWay}">
                        </ContentPresenter>
                    </telerik:RadMenuItem.Header>
                </telerik:RadMenuItem>
            </DataTemplate>
            <DataTemplate DataType="{x:Type vm:MenuSeparatorViewModel}">
                <Separator />
            </DataTemplate>
        </telerik:RadContextMenu.Resources>
    </telerik:RadContextMenu>
</telerik:RadContextMenu.ContextMenu>


Ollie
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 answered on 27 Feb 2014
1 answer
119 views
I am new to WPF and have developed a RadMap for Silverlight previously using MVVM.

I'm attempting to duplicate this for WPF that can be accessed from the web but I'm not seeing what I expect in the project.

I started out in VS 2010 clicking new Project > Telerik > Telerik C# WPF Application

I added a new WPF page and added the RadMap to it.

I've created the xaml, created the ViewModelBase class etc. Here is what I have so far:

xaml:
<Page x:Class="ccWPF.Centers"
      mc:Ignorable="d"
      d:DesignHeight="300" d:DesignWidth="300"
    Title="Centers">
 
    <Grid>
        <telerik:RadMap x:Name="radMap" />
    </Grid>
</Page>

XAML.cs:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
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.Map;
 
namespace ccWPF
{
    /// <summary>
    /// Interaction logic for Centers.xaml
    /// </summary>
    public partial class Centers : Page
    {
        public Centers()
        {
            InitializeComponent();
 
            this.radMap.Provider = new BingMapProvider(MapMode.Aerial, true, "myKey");
        }
    }
}

Is there a simple solution someone can attach that would demonstrate this using MVVM available for the web and not a desktop application? I will be binding from SQL Server data.

Thanks,

Tim









Andrey
Telerik team
 answered on 27 Feb 2014
3 answers
116 views
Hi,

I have a grid designed as shown in the first image when my Zoom is at say, Zoom="16, 5":

I have implemented a zoom button that when clicked, will increase the zoom width and height in increments of 6 and 1 respectively.

When I increment to  say, "28, 7" the grid now looks like that in the second image.

Is there any way for me to force the grid to maintain the same height/size proportion when zomming?

Thanks.
Martin Ivanov
Telerik team
 answered on 26 Feb 2014
2 answers
138 views
I have created a simple WPF application that has a button and a RadRichTextBox using most recent 2013 build. The text box is hidden by default (not sure if that has any bearing but it's how the main app works so I'm being consistent). 

When the user presses the button the app reads XAML from a text file (~900k) and converts to a RadDocument using the XamlFormatProvider. Total elapsed time is < 2s.

I then set the document of the text box to the resultant document and make the text box visible. The entire UI of the app freezes for about 2 minutes until the text box creates the initial rendering of the document and then freezes for an additional 2 minutes until the scrolling is finished.

I'm happy to share code and data if need be.

How do I work around this?

rjsjr
Sandra
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 answered on 26 Feb 2014
3 answers
230 views
Hi,

I am new to WPF and am trying to understand the best control to use for my implementation. Any help would be greatly appreciated.

I have two observable collections in my view model. My requirement is that i have to display one collection on the first column and the other collection on the second column of the RadWindow. I am currently using two RadTileView controls for this. Clicking on each tile will take the user to a different screen.

I have two issues with the above implementation.
 1) It currently displays a scrollbar for each RadTileView. Can i display one common scrollbar for both the RadTileViews?
 2) If the first collection is empty, I should not display the first column and should left align the second column.

Is RadTileView the right control for this? If not can you please suggest other controls that i can use?
                      
I can change the ViewModel to have one observableCollection and identify where each entry will go if that helps.

I attached a screenshot of the view.

Thanks!                 
Tina Stancheva
Telerik team
 answered on 26 Feb 2014
2 answers
205 views
Hello,

If have a 2 RadListBoxes (let's call them A and B). The user is able to drag items from A to B. I am hooking B's DragOver and Drop events to facilitate the dropping behavior I need. The items in B are displayed with a data template with a number of text boxes. I want the user to be able to select the text in the text boxes using the mouse. Doing so however triggers B's drag behavior so the text can't be selected this way. Items in B should not be dragable at all. If I create a custom DragDropBehavior class that prevents dragging and assign it to B then the text in the text boxes can be selected the way I want, but then I loose the DragOver and Drop events which I can't do without.

So, is there a way that I can assign a custom DragDropBehavior to B and still have the DragOver and Drop events fire, or alternatively is there a way to disable dragging in B such that the drag behavior is not triggered when the mouse is dragged inside the text box of the data template?

Thanks.

Gerhard.
Polya
Telerik team
 answered on 26 Feb 2014
6 answers
226 views
I need to create a 3-panel User Control (a left and right panel in the top half of the control and a single panel in the bottom half).  I need the panel sizes to be interactively adjustable via some sort of splitter control.  Further, the entire control needs to be dynamically themeable via the Telerik Implicit Styles.  I *do not* need (or want) the panels to be moveable, dockable, floatable, pinnable, etc.

Originally, I just used the stock WPF GridSplitter, but immediately realized that it doesn't match the currently selected Telerik theme. I know I can create the control using RadDocking, RadSplitContainer, RadPaneGroup, and RadPane controls and that'll get me the themed splitter control I need, but that seems like overkill in this case.

Can I create a simple 3-panel layout complete with themed splitter controls without resorting to RadDock and friends?  If so, how?

Thanks,

Jeff
Jeff
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 answered on 26 Feb 2014
2 answers
172 views
I am sure I am missing something, but I am not seeing any updates to my ViewModel for any selection changes.  I am getting the SelectionChanged Event in my code behind (which I don't want, I put it there for testing), but nothing through the binding. When I breakpoint on the event, and I look at the chart, the SelectedPoints property has the proper points in it.  Relevant things shown below.

<telerik:RadCartesianChart x:Name="chart" Palette="Autumn" SelectedPoints="{Binding SelectedDataPoints, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}">

....
<telerik:RadCartesianChart.Series>
    <chartView:BarSeries ItemsSource="{Binding rgs}" PaletteMode="DataPoint" IsHitTestVisible="True" CategoryBinding="Name"
             ValueBinding="Count">
       <chartView:BarSeries.PointTemplate>
          <DataTemplate>
             <Rectangle Fill="{Binding Converter={StaticResource GoodToBad}}" />
          </DataTemplate>
       </chartView:BarSeries.PointTemplate>
   </chartView:BarSeries>
</telerik:RadCartesianChart.Series>
....

<telerik:RadCartesianChart.Behaviors>
     <telerik:ChartSelectionBehavior DataPointSelectionMode="Single" SelectionChanged="ChartSelectionBehavior_SelectionChanged" />
</telerik:RadCartesianChart.Behaviors>

and in my view model:

private ReadOnlyDataPointCollection _dataPoints = null;
public ReadOnlyDataPointCollection SelectedDataPoints
{
    get { return _dataPoints; }
    set
    {
       _dataPoints = value;
       RaisePropertyChanged(() => SelectedDataPoints);
    }
}

There are no binding errors showing in the output window, and the "get" property on the SelectedDataPoints property in my view model is getting hit.  But never the set.

What am I missing?

Thank
Paul


Paul
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 answered on 26 Feb 2014
4 answers
623 views
Hi,

I add a RadRibbonView to my window and hope add same buttons(Maximum, Minimize, close ) to it as normal window. But I didn't know how to add those buttons to RadRibbonView or if It has a way to show those buttons?  Please see attachment.  How I can do this? thanks.
 
Tina Stancheva
Telerik team
 answered on 26 Feb 2014
5 answers
180 views
Hi,

I plan to use the RADTimeLine and the RadTimeBar to make a control for controlling Video media elements.

So my questions are :

- Do i have the ability to customize the duration to Frame? (Frame is a duration use in media, 25 Frames = 1 Second)
- How can i add a vertical line (the now line) to follow frame by frame a playing video?


Thank you in advance for your help,

Kind Regards.
Boris
Telerik team
 answered on 26 Feb 2014
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