Questions on UI for WPF Forum

1 answer

54 views

SelectedItems

Hi,
could you make SelectedItems property as DependencyProperty? Why is this property marked as private?

Thanks for your answers.

PropertyGrid

answered on 27 Feb 2014

8 answers

323 views

Unable to set RadTreeViewItem's expander style to a StaticResource?

I learned how to set a RadTreeViewItem's expander style dynamically by WPF data binding, see the link below.
http://blogs.telerik.com/blogs/11-01-17/controlling-treeview-s-expanderstyle-dynamically.aspx

However, if I change ExpanderStyle to StaticResource, it doesn't work. (But it works for RadTreeView)

<Style x:Key="ContainerStyle" TargetType="telerik:RadTreeViewItem">

<Style.Setters>

<Setter Property="ExpanderStyle" Value="{StaticResource ExpanderStyle_3}" />

</Style.Setters>

</Style>

What's interesting is when I click "Clear Local Item Style", the style is applied.

How can I set an item's expander style to static resource just like the tree view?

TreeView

answered on 27 Feb 2014

4 answers

228 views

Serialize ResourceDictionary of RadDiagramShape

Hi,
I want to serialize (and later deserialize) the content of the ResourceDictionary of the shape.
One Idea was to store the number of resources to serialize and store the dictionary entries as Resource_1, Resource_2, Resource_3, ...
I have to store the Key, the Value and the Type. Is there a convenient (builtin) way to do this? Or have I to convert it manually to a string and back?

Alex

Diagram

answered on 27 Feb 2014

1 answer

86 views

RadDiagram Navigation

I am using RadDiagram to create some rather large diagrams that often do not fit in one screen. Using the scroll bars is rather fiddly. Is there an easier way to navigate around the diagram? Something like holding the mouse button down and moving to different parts of the diagram?

Diagram

answered on 27 Feb 2014

2 answers

175 views

RadContextMenu not closing with custom header

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>

Menu

answered on 27 Feb 2014

1 answer

89 views

New to WPF

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"

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

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

xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

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

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

Map

answered on 27 Feb 2014

3 answers

102 views

How to keep grid squares on grid constant on Zooming?

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.

ChartView

answered on 26 Feb 2014

2 answers

128 views

Loading Document Locks App

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

RichTextBox

answered on 26 Feb 2014

3 answers

218 views

Is RadTileView the best choice to bind observablecollections

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!

TileView

answered on 26 Feb 2014

2 answers

184 views

RadListBox - Disable drag but allow drop events

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.

DragAndDrop

answered on 26 Feb 2014