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5 answers
349 views

Hi

Nice work with the new Callout-control, exactly what I needed!

 

1)

Im looking at the documentation, and I have a hard time figuring out how to popup a button on a button clicked for MVVM approach 

(I have a (i)-symbol on a button for each row in my grid that should show a popup/callout with more information for that row)

2) 

Are there example on formatted callout content (newline and bold, mostly needed)

 

 

/Thanks in advance, Robert

Dinko | Tech Support Engineer
Telerik team
 answered on 19 Oct 2020
22 answers
4.9K+ views
Hi everyone !
I want to change item background color when select or mouse hover , help me please !
Martin Ivanov
Telerik team
 answered on 16 Oct 2020
9 answers
1.0K+ views

Hello

I need a racombobox with checkbox with multiselect and "select all" option, so I used the example from this thread : https://www.telerik.com/forums/radcombobox-with-checkbox-with-multi-select-(using-mvvm)

It works well, but I need it into a radgridview which could have a scrollbar and in this case I got an excepetion when I use the scroll of the radgridview.

It's fire the event OnSelectedItemsPropertyChanged change and so the sub Transfer is called but as the collection changed the Transfer sub crach.

 

I tried to put the radcombobox into a stack panel in order to prevent firing of event but it doesn't work :(

Here the code :

<telerik:RadGridView Margin="6,10,6,32.96" ShowGroupPanel="False" RowIndicatorVisibility="Collapsed" CanUserFreezeColumns="False" CanUserReorderColumns="False"
                             CanUserResizeColumns="True" CanUserSortColumns="False" CanUserDeleteRows="False" CanUserInsertRows="False" ItemsSource="{Binding Rules}"
                             SelectedItem="{Binding SelectedRule}" IsReadOnly="{Binding OnlyRead}"
                             AutoGenerateColumns="False">
 
                    <telerik:RadGridView.Columns>
                        <telerik:GridViewDataColumn Header="Jib Geometry" Width="100">
                            <telerik:GridViewColumn.CellTemplate>
                                <DataTemplate>
                                    <StackPanel>
                                    <telerik:RadComboBox ItemsSource="{Binding JibGeometryDataContexts}" Margin="5,0,0,0" HorizontalAlignment="Left" VerticalAlignment="Center"
                                                 Height="22" AllowMultipleSelection="True" EmptyText="Select jib geometry" Grid.Column="1" IsEditable="False" ItemTemplate="{StaticResource MultiSelectComboTemplate}"
                                                 Style="{StaticResource CheckBoxRadComboBox}" MultipleSelectionBoxTemplate="{StaticResource MultiSelectedBoxTemplate}" DropDownClosed="RadComboBox_DropDownClosed">
                                        <i:Interaction.Behaviors>
                                            <combobox:SelectedItemsBehavior SelectedItems="{Binding SelectedJibGeometryDataContexts}" />
                                        </i:Interaction.Behaviors>
                                    </telerik:RadComboBox>
                                    </StackPanel>
                                </DataTemplate>
                            </telerik:GridViewColumn.CellTemplate>
                        </telerik:GridViewDataColumn>                                             
                        ...
                    </telerik:RadGridView.Columns>
 
                </telerik:RadGridView>

 

crash on :

Public Shared Sub Transfer(ByVal source As IList, ByVal target As IList)
            If source Is Nothing OrElse target Is Nothing Then Return
            target.Clear()
 
            For Each o In source
                target.Add(o)
            Next
        End Sub

 

Do you have any Idea to fix these crashes ?

Thanks

Regards

J-Christophe

Dilyan Traykov
Telerik team
 answered on 16 Oct 2020
2 answers
1.0K+ views

Hi all,

I have a grid that uses the GridViewComboBoxColumn column type.  We're trying to give it very fast action.  We want the cell to commit the edit and exit edit mode immediately after selecting a value in the combo box of the column.

How can this be done?  I see there's a RadMultiColumnComboBox.SelectionChanged event where an EndEdit could be called, but we're not using multi-column combo boxes.

Thanks!
Matt

Matt
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Veteran
 answered on 16 Oct 2020
4 answers
215 views

Hello,

 

I have tested a specific .pdf file in Adobe Reader, Chrome and Edge, in all viewers the pdf loads without issues and all text is visible.

This is not the case in PDFViewer, the content is obscured in some way (marked in red rectangles on screens). I have tested it on the demo preview of features.

Would it be possible to fix this issue?

 

I'm attaching  the difference in views example in PDFViewer and Edge.

It is not possible to attach the .pdf file in question, can i provide this file in any other way?

Thank you.

Martin
Telerik team
 answered on 16 Oct 2020
3 answers
339 views

I have a HeaderTemplate that contains two RadPathButtons.

One of the button's PathGeometry is defined in xaml:

PathGeometry="{telerik:RadGlyph Glyph=&#xe13a;}"

 

The other one's PathGeometry is defined using the RadGlyph markup extension:

PathGeometry="{telerik:RadGlyph Glyph={StaticResource GlyphInvertColors}}"

 

When using the markup extension the Visual Studio 2019 (Preview) xaml editor shows error "The resource GlyphInvertColors has an incompatible type"

There are no errors when not using the markup extension.

In both cases it works perfectly at runtime. The errors only appear at Design time.

As of a day or two ago, these errors would disappear if I rebuilt the solution. But now they are persistent and never go away.

Here is the xaml I am using:

<telerik:RadWindow.HeaderTemplate>
    <DataTemplate>
        <DockPanel LastChildFill="False">
            <TextBlock DockPanel.Dock="Left" Text="{StaticResource ApplicationTitle}" VerticalAlignment="Center" Margin="0,0,8,0"/>
            <StackPanel DockPanel.Dock="Right" Orientation="Horizontal" FlowDirection="RightToLeft">
 
                <telerik:RadPathButton Style="{DynamicResource RadPathHeaderButtonStyle}"
                                       PathGeometry="{telerik:RadGlyph Glyph=}"
                                       Command="{Binding DataContext.ShowSettingsDialogCommand, ElementName=mainWindow}"
                                       CommandParameter="{Binding RelativeSource={RelativeSource AncestorType={x:Type telerik:RadWindow}}}"
                                       telerik:RadToolTipService.Placement="Mouse"
                                       telerik:RadToolTipService.VerticalOffset="1"
                                       telerik:RadToolTipService.ToolTipContent="Settings">
                    <telerik:RadToolTipService.ToolTipContentTemplate>
                        <DataTemplate>
                            <telerik:RadToolTipContentView>
                                <TextBlock Text="{Binding}" />
                            </telerik:RadToolTipContentView>
                        </DataTemplate>
                    </telerik:RadToolTipService.ToolTipContentTemplate>
                </telerik:RadPathButton>
 
                <telerik:RadPathButton Style="{DynamicResource RadPathHeaderButtonStyle}"
                                       PathGeometry="{telerik:RadGlyph Glyph={StaticResource GlyphInvertColors}}"
                                       Command="{Binding DataContext.TogglePaletteCommand, ElementName=mainWindow}">
                    <telerik:RadToolTipService.ToolTipContentTemplate>
                        <DataTemplate>
                            <telerik:RadToolTipContentView>
                                <TextBlock Text="{Binding}" />
                            </telerik:RadToolTipContentView>
                        </DataTemplate>
                    </telerik:RadToolTipService.ToolTipContentTemplate>
                </telerik:RadPathButton>
 
            </StackPanel>
        </DockPanel>
    </DataTemplate>
</telerik:RadWindow.HeaderTemplate>

 

I'm not certain this is actually an issue with the RadGlyph or RadPathButton. It could very well be a Visual Studio issue. Or, of course, it could be a mistake that I am making (maybe something missing or incorrect in my xaml or maybe I am missing a required dependency. Any ideas would be greatly appreciated.

Don
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Veteran
 answered on 15 Oct 2020
1 answer
384 views

Hello!

 

I get exceptions when open some files using method Import() in PdfFormatProvider.

I prepared 1 such file to you for tests: http://u.pc.cd/3TlctalK

Version of libraries which I use is 2020.3.915

 

 

I noticed, that exceptions appears for files with outlines.

There is DestinationConverter object and its method ConvertFromArray where that exception appears.

 

Here is exception message:

Unable to cast object of type "Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Types.PdfReal" to type "Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.Model.Types.PdfName".

Here is a StackTrace:

   in Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.ExceptionHandling.ExceptionHandler.TryHandle(Exception exception)
   in Telerik.Windows.Documents.Fixed.FormatProviders.Pdf.PdfFormatProvider.ImportOverride(Stream input)
   in PdfViewer.States.AppStateExtensions.ReadDocumentForTelerik(String filePath)

 

My method:

internal static RadFixedDocument ReadDocumentForTelerik(string filePath)
{
    if (filePath == null)
        throw new ArgumentNullException(nameof(filePath));
 
    using (Stream stream = File.Open(filePath, FileMode.Open, FileAccess.Read))
    {
        var provider = new PdfFormatProvider();
        provider.ImportSettings = PdfImportSettings.ReadOnDemand;
        return provider.Import(stream);
    }
}

 

Using:

var doc = ReadDocumentForTelerik(@"C:\Outline_Down.pdf");

 

Martin
Telerik team
 answered on 15 Oct 2020
8 answers
208 views

I have defined a RadWindow like this:

01.<telerik:RadWindow x:Class="Shell.ShellView"
02.                   xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
03.                   xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
04.                   xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
05.                   xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
06.                   xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
07.                   xmlns:shell="clr-namespace:Shell"
08.                   mc:Ignorable="d"
09.                   d:DesignHeight="450" d:DesignWidth="800"
10.                   d:DataContext="{d:DesignInstance shell:ShellViewModel}"
11.                   Width="800"
12.                   Height="475"
13.                   Header="{Binding Header}"
14.                   WindowStartupLocation="{Binding StartupLocation}"
15.                   navigation:RadWindowInteropHelper.ShowInTaskbar="{Binding ShowInTaskBar}">
16.     [...]
17. 
18.</telerik:RadWindow>

 

Note the bindings on lines 13 - 15.

The corresponding view model looks like this:

01.public class ShellViewModel
02.{
03.    public bool ShowInTaskBar => true;
04. 
05.    public WindowStartupLocation StartupLocation => WindowStartupLocation.CenterScreen;
06. 
07.    public string Header => Resources.MainWindowHeader;
08. 
09.    [...]
10.}

 

As you can see, I am binding the Header, the StartupLocation, and the ShowInTaskBar properties. 

My problem is the following: while the bindings for the Header and ShowInTaskBar do work perfectly, the binding for StartupLocation doesn't. I understand why. 

Can someone tell me what I am missing here?

Thanks in advance!

 

 

Dilyan Traykov
Telerik team
 answered on 15 Oct 2020
2 answers
305 views

The strangest thing is happening with my GridView when I try to add a custom datacolumn with a checkbox in and a GridViewColumn.Header, to add anothner checkbox, that should select all checkboxes in the list, pretty standard. 

I have the code below, but when I click  the "check all"-checkbox, I do not get the Command send to my event handler, nothing happens. Now the strange part

If I, while running the application, change the markup (below) AncestorType={x:Type UserControl}}, to AncestorType={x:Type local:MyView}} it works, I get my event. Hip horray, right? Nope. If I restart the application, nothing happens again, until I change it back to the original and things are working again

 

Why, oh Telerik-Gods, why! :D

snippet below:

 

<telerik:GridViewColumn  >
    <telerik:GridViewColumn.Header>
        <CheckBox IsChecked="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type UserControl}}, Path=DataContext.IsAllChecked, Mode=TwoWay}"                                                                                   
                    Command="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type UserControl}}, Path=DataContext.SelectAllRowsCommand}">
              

        </CheckBox>
    </telerik:GridViewColumn.Header>


Dilyan Traykov
Telerik team
 answered on 15 Oct 2020
1 answer
1.4K+ views

Hi,

This is a more general question, not about Telerik controls though I am using them.
(VISUAL STUDIO 2019)
I have a VSTO project (I think the question can be for Winforms projects as well).
I have a WPF project that I want to interact with from the VSTO project and back.
I managed to run (process.start with parameters) the the WPF exe from the VSTO but it's not good enough because I want to be able to communicate between the two projects.
I added the WPF project to the VSTO solution, and added a reference from the VSTO to the WPF and then create a "common project" that both projects reference to be able to pass data in common models.
I am able to run the WPF project from the VSTO (when the user clicks a button, in the UI of the VSTO, I call App.Main() in the WPF project).
The problem is that if I try to use App.Main() again (to call the WPF project again) I get an exception because I can not create a second Application in the appdomain.
Any thoughts on how I can accomplish this (my way or any other way that will let me interact between the two projects).
Thank you
Yaron

Martin Ivanov
Telerik team
 answered on 15 Oct 2020
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