Hi,

I'm version locked at 2020.1.218. 

I'm not sure what I am doing wrong or has changed but suddenly I am no longer able to render pdf from a file or URL. The implementation was simple. Here is my snippet

PDFURL is a direct url string to a hosted PDF file.

var SavePathStr = @"%ALLUSERSPROFILE%\HES\" + Constants.TempNDApdf;
var SavePathFinal = Environment.ExpandEnvironmentVariables(SavePathStr);

                using (WebClient client = new WebClient())
                {
                    client.DownloadFile(PDFURL, SavePathFinal);


                }

pdfViewer.DocumentSource = new PdfDocumentSource(new Uri(SavePathFinal));

I've not have any issues doing it this way until recent compiles. I'm not sure what I broke.

if it helps, this is my xml using for RadPdfViewer,

        <telerik:RadPdfViewer x:Name="pdfViewer" BorderBrush="#286090" BorderThickness="2"
                Grid.Column="0" Grid.ColumnSpan="2" Margin="0,15,5,0"
                Grid.Row="0" Grid.RowSpan="3"  Background="Transparent"
                Width="875" Height="400"
                HorizontalAlignment="Right" VerticalAlignment="Center"

                              />

I'm not seeing any "errors" exactly, no exceptions thrown. I get a quick loading symbol and nothing happens. If I step into it to examine the new PdfDocumentSource, it says "Document" is null. 

Hi

I’m trying to get keyboard shortcuts to work inside several tab items. However, keyboard shortcuts only work after you click on something/anything inside of the tab. Clicking on the Tab header is not enough.

I have tried focusing on the first child in code when the tab is selected but that doesn’t work, it's only after a mouse click inside the tab that it starts to work.

<telerik:RadTabItem  Header="Item X"  >

	<telerik:RadTabItem.InputBindings>
		<KeyBinding Key="N" Modifiers="Ctrl" Command="{Binding NewItemXCommand}" />
		<KeyBinding Key="R" Modifiers="Ctrl" Command="{Binding ReloadItemXCommand}" />
	</telerik:RadTabItem.InputBindings>

	<Grid>
		<!-- Content -->
	</Grid>

</telerik:RadTabItem>

<telerik:RadTabItem  Header="Item Y"  >

	<telerik:RadTabItem.InputBindings>
		<KeyBinding Key="N" Modifiers="Ctrl" Command="{Binding NewItemYCommand}" />
		<KeyBinding Key="R" Modifiers="Ctrl" Command="{Binding ReloadItemYCommand}" />
	</telerik:RadTabItem.InputBindings>

	<Grid>
		<!-- Content -->
	</Grid>

</telerik:RadTabItem>

Any advice you can offer would be appreciated.

Thanks,

Richard

I have created an application in which user can draw RadDiagramShapes on an Image which is again a RadDiagramShape, an image is just set on the content of the shape.

When i am connecting two shapes with RadDiagramConnection it is present in the list but i am not able to see those connections.

When i create these connections without the image in the background the connections will show.

Can someone please help me how can i see the connections with background image on?

Hi all!

This question is not accurate enough, the actual problem is described here: https://www.telerik.com/forums/radtoolbartray-itemtemplateselector-problems

***

I have not updated my Telerik components for years; last time I did, the radToolbars stopped working, and I have not had the time to look into it. So I reverted back to what worked, but now I feel it's time to get back on the track.

So here we go: programmatically generated toolbars on my main form do not display any buttons. I use toolbar and button view models that the UI components bind to. The entire set of toolbar viewmodels are built on the fly, and only empty toolbars show up. I have other UI components which have buttonless toolbar components placed onto them at design time, and those work when I add the buttons runtime, so the only difference I've found has to do with the non-working toolbars not existing at design time.

They work in RCWPF 2018.3.1016.45, so that's what I'm still using. This happened when I (briefly) upgraded to 2020.2.513.45, and the problem still exists in the current version.

The images show the two different versions. The dockable Conceptual model window contains an empty-at-design-time toolbar, which is populated when the UI is initialized. The main window contains a toolbar container which does not contain any toolbar components at design time.

Does anything come to mind immediately? If not, I will dig into my code.

And to be clear, the generated toolbarviewmodel has several buttonviewmodels on it. The same code builds the viewmodels in both cases.

Hi!

I have my own toolbar class, derived directly from RadToolbar:

<telerik:RadToolBar x:Class="MyNS.Components.MyToolbar"
             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" 

             xmlns:viewmodel="clr-namespace:MyNS.ViewModel;assembly=MyNS.ViewModel" 
             d:DataContext="{d:DesignInstance Type=viewmodel:ToolbarViewModel}"

             mc:Ignorable="d" 
             d:DesignHeight="300" d:DesignWidth="300"
             VerticalAlignment="Top"

             DataContext="{Binding}"
             Visibility="{Binding ToolbarVisible, Converter={StaticResource BoolToVisibility}}"
             ItemTemplateSelector="{StaticResource ToolbarElementTemplateSelector}"
             ItemsSource="{Binding Elements}"

             Band="{Binding Band}"
             BandIndex="{Binding BandIndex}"                    
            >
</telerik:RadToolBar>

with

public partial class MyToolbar : RadToolBar
{
public MyToolbar()
{
InitializeComponent();
}
}

When I add this toolbar design time on my child forms it works nicely. The underlying ToolbarViewModel binds all the way, and I get the buttons I want when I run the app. 

But when dynamically instantiating new ToolbarViewModels to be shown on my MainWindow, I get empty buttonless RadToolbar instances, not MyToolbar instances. So I want to control what kind of toolbar gets instantiated. I have this in MainWindow.xaml:

<telerik:RadWindow x:Class="MyNS.MainWindow"
...

<telerik:RadToolBarTray
  Name="Toolbars"
  Grid.Row="1"
  ItemsSource="{Binding Path=Toolbars}"
  IsLocked="False"
  ItemTemplateSelector="{StaticResource ToolbarTemplateSelector}"
/>

</telerik:RadWindow>

The binding itself works. I get RadToolbars, but without any buttons on them. But I get the wrong kind of toolbar, and I thought the ToolbarTemplateSelector would do it, but it never gets called.

So I have:

public class ToolbarTemplateSelector : DataTemplateSelector
{
    public override DataTemplate SelectTemplate(object item, DependencyObject container)
{
// currently only one toolbar template

// THIS CODE IS NEVER RUN

return this.MyToolbarTemplate;
}

public DataTemplate MyToolbarTemplate { get; set; }
}

and DataTemplate.xaml

<ResourceDictionary 
...

<!-- compile error if removed, so the mainwindow reference correctly points to this -->
<vm:ToolbarTemplateSelector 
        x:Key="ToolbarTemplateSelector"
        MyToolbarTemplate="{StaticResource dtMyToolbar}"
    />

</ResourceDictionary>

and in PaneTemplate.xaml I have:

<ResourceDictionary 
...

<!-- app crashes on start if this is removed -->
    <DataTemplate x:Key="dtMyToolbar" DataType="{x:Type vm:ToolbarViewModel}">
        <components:MyToolbar />
    </DataTemplate>

</ResourceDictionary>

In my mind, whenever a new ToolbarViewModel is added to the Toolbars collection, the ToolbarTemplateSelector should instantiate a MyToolbar instance for it, and not a RadToolbar instance. 

I have no idea what's missing. 

Oh, I also tested with:

<telerik:RadWindow x:Class="MyNS.MainWindow"
...

<telerik:RadToolBarTray
  Name="Toolbars"
  Grid.Row="1"
  ItemsSource="{Binding Path=Toolbars}"
  IsLocked="False"
>
<DataTemplate>
<ksc:MyToolbar/>
</DataTemplate>
</telerik:RadToolBarTray>
...
</telerik:RadWindow>

But then the app crashes with the error message "Items collection must be empty before using ItemsSource." before the main window shows up. I don't see why that would happen, as the toolbartray is definitely empty at first.

Appreciate any help,

Kim

Hi,

I'm using RadMap to load a simple ESRI shapefile containing points (described by latitude/longitude in associated dbf file).

I want to change the defaut icon used to draw the point (which is looking like a google map pin) to a single blue circle with a radius of one ou two pixel.

I want to change the color of the circle on mouse click for select it.

I tried to use VisualizationLayer.ShapeFill but it doesn't work.

Here is my code :

Thanks for your help

Yoan

Hellp

In the previous post I asked a question and got an answer..
But there was a problem.

It is related to number 1. ( https://www.telerik.com/forums/is-a-custom-color-picker-possible )

It runs fine until the build is successful and I start debugging and finish.

Using <Setter Property = "local : CustomColorPickerOpenBehavior"Value = "True"/> crashes the designer.

Where xaml designer Exception was thrown.

InvalidOperationException: Sequence contains no matching element

Deleting the CustomColorPickerOpenBehavior property shows the xaml designer.

If the property is created again, an exception occurs.

What is the problem?

Thanks.

<Style TargetType="telerik:RadColorPicker" BasedOn="{StaticResource RadColorPickerStyle}">
	<Setter Property="Padding" Value="5" />
	<Setter Property="SplitButtonStyle">
		<Setter.Value>
			<Style TargetType="telerik:RadSplitButton" BasedOn="{StaticResource RadSplitButtonStyle}">
				<Setter Property="mat:MaterialAssist.FocusBrush"		Value="Transparent"/>
				<Setter Property="mat:MaterialAssist.MouseOverBrush"	Value="Transparent"/>
				<Setter Property="behaviour:ColorPickerButtonSync.IsEnabled" Value="True" />
				<Setter Property="IsChecked" Value="{Binding IsDropDownOpen, RelativeSource={RelativeSource AncestorType=telerik:RadColorPicker}}" />
			</Style>
		</Setter.Value>
	</Setter>
</Style>

<telerik:RadColorPicker Width="70" SelectedColor="Red" IsRecentColorsActive="True">
	<telerik:RadColorPicker.ContentTemplate>
		<DataTemplate>
			<Rectangle	Width="35" Height="25"
									Fill="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type telerik:RadColorPicker}},
									Path=SelectedColor, Converter={StaticResource mediaToBrushConverter}}" />
		</DataTemplate>
	</telerik:RadColorPicker.ContentTemplate>

	<telerik:RadColorPicker.AdditionalContent>
		<ContentControl HorizontalContentAlignment="Stretch" Content="{Binding}" >
			<ContentControl.ContentTemplate>
				<DataTemplate>
					<Grid>
						<telerik:RadButton	Height="26" BorderThickness="0"
														HorizontalContentAlignment="Left"
														Command="{Binding OnClickOpenEditColorsCommand}"
														CommandParameter="{Binding RelativeSource={RelativeSource Mode=FindAncestor,AncestorType={x:Type telerik:RadColorPicker}}}"
														>
							<telerik:RadButton.Content>
								<TextBlock Text="More Colors..." Margin="26 0 0 0" />
							</telerik:RadButton.Content>
						</telerik:RadButton>
					</Grid>
				</DataTemplate>
			</ContentControl.ContentTemplate>
		</ContentControl>
	</telerik:RadColorPicker.AdditionalContent>
</telerik:RadColorPicker>

public class ColorPickerButtonSync
    {
        public static bool GetIsEnabled(DependencyObject obj)
        {
            return (bool)obj.GetValue(IsEnabledProperty);
        }

        public static void SetIsEnabled(DependencyObject obj, bool value)
        {
            obj.SetValue(IsEnabledProperty, value);
        }

        public static readonly DependencyProperty IsEnabledProperty =
            DependencyProperty.RegisterAttached("IsEnabled", typeof(bool), typeof(ColorPickerButtonSync), new PropertyMetadata(false, new PropertyChangedCallback(OnIsEnabledChanged)));

        private static void OnIsEnabledChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            var button = d as RadSplitButton;
            button.IsToggle = true;
            button.Loaded += Button_Loaded;
            button.Checked += SplitButton_Checked;
            button.Unchecked += SplitButton_Unchecked;
            button.DropDownOpened += Button_DropDownOpened;
            button.DropDownClosed += Button_DropDownClosed;
        }

        private static void Button_Loaded(object sender, RoutedEventArgs e)
        {
            var splitButton = sender as RadSplitButton;
            var colorSelector = splitButton.DropDownContent as RadColorSelector;
            colorSelector.Loaded += (s, a) =>
            {
                var rootElement = colorSelector.ChildrenOfType<Grid>().First(x => x.Name == "RootElement");
                Grid.SetRow(rootElement.Children[1], 4);
                Grid.SetRow(rootElement.Children[2], 5);
                Grid.SetRow(rootElement.Children[3], 6);
                Grid.SetRow(rootElement.Children[4], 1);
                Grid.SetRow(rootElement.Children[5], 2);
                Grid.SetRow(rootElement.Children[6], 3);
            };

            var dropDownPart = splitButton.ChildrenOfType<RadToggleButton>().First(x => x.Name == "DropDownPart");
            var rectangle = splitButton.ChildrenOfType<Rectangle>().First(x => x.Name == "Separator");
            //System.InvalidOperationException: 'Sequence contains no matching element'
            dropDownPart.Visibility = Visibility.Collapsed;
            rectangle.Visibility = Visibility.Collapsed;
        }

        private static void Button_DropDownClosed(object sender, RoutedEventArgs e)
        {
            var splitButton = sender as RadSplitButton;
            splitButton.IsChecked = false;
        }

        private static void Button_DropDownOpened(object sender, RoutedEventArgs e)
        {
            var splitButton = sender as RadSplitButton;
            splitButton.IsChecked = true;
        }

        private static void SplitButton_Checked(object sender, RoutedEventArgs e)
        {
            var splitButton = sender as RadSplitButton;
            var colorPicker = splitButton.ParentOfType<RadColorPicker>();
            colorPicker.IsDropDownOpen = true;
        }

        private static void SplitButton_Unchecked(object sender, RoutedEventArgs e)
        {
            var splitButton = sender as RadSplitButton;
            var colorPicker = splitButton.ParentOfType<RadColorPicker>();
            colorPicker.IsDropDownOpen = false;
        }
    }

how to display image from arcgis server which provider i have to used ?

i want display one image not many tiles from arcgis server 

a)tilemadsource,

b)imagemapsource,

c)UriImageProvider

d)another?

please i want a code.

I want to display attached properties in PropertyGrid.

How to.