Questions on UI for WPF Forum

3 answers

80 views

Hi, i create some Grid and I create more than 100 items and only 100 are shown, if i click on Install button once more (it just recreates the same items) all items are shown... where it is a problem? How can i attach the solution?

GridView

answered on 12 Aug 2020

3 answers

184 views

RadObservableCollection<T>.ShouldResetOnResumeNotifications

how do we set RadObservableCollection<T>.ShouldResetOnResumeNotifications to false?

there is no public constructor that allows for this and the property is readonly ...

General Discussions

answered on 12 Aug 2020

1 answer

112 views

How add and DragDrop "EndShape" control in toolbox

Hello.

I want to implement module that add "EndShape" on toolbox and dragdrop to diagram.

Help me.

Diagram

answered on 12 Aug 2020

4 answers

251 views

Text refresh issue

Hi in our application we can enter on three different positions the same value via an autocomplete box. Unfortunately the Text is not align with all the other positions. I prepared a small example where you can test it.

You can enter the value for Search Text in the Grid (via cell edit template) the First Tab and the Second tab at the bottom.You can see that if you enter similar text examples like Test, Test1, TestT and switch between them the value gets overwritten by the old value (First Tab: Test, Second Tab: Test1, Switch back to first tab => Test overwrites Test1)

I hope you can reproduce this issue. We found a workaround at handling the binding at the lost focus event, but in my opinion this is a bug in the control.

Thanks and Br,

Stefan

https://drive.google.com/file/d/1MEYAVatohcLog67PukJc2LHzXh_yvq4_/view?usp=sharing

AutoCompleteBox

answered on 12 Aug 2020

3 answers

471 views

source cannot be null

Hello,

I am facing some issues with the FileDialogs Controls in WPF:

When using the controls, none of their fields are recognized (for example, ExplorerControl has no Filter neither Multiselect member)

I created a simple WPF project with only the two following files, and added Assembly references to:

Telerik.Windows.Controls
Telerik.Windows.Controls.FileDialogs
Telerik.Windows.Controls.GridView
Telerik.Windows.Controls.Input
Telerik:Windows.Controls.Navigation
Telerik.Windows.Data

MainWindow.xaml:

<Window x:Class="TelerikTest.MainWindow"

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:fileDialogs="clr-namespace:Telerik.Windows.Controls.FileDialogs;assembly=Telerik.Windows.Controls.FileDialogs"

mc:Ignorable="d"

d:DesignHeight="300"

d:DesignWidth="300">

<Grid>

<fileDialogs:ExplorerControl x:Name="explorer"/>

</Grid>

</Window>

MainWindow.xaml.cs:

using System.Windows;

using System.Windows.Controls;

namespace TelerikTest

{

/// <summary>

/// Interaction logic for MainWindow.xaml

/// </summary>

public partial class MainWindow : Window

{

public MainWindow()

{

InitializeComponent();

}

And when trying to run it, I get this exception:

System.ArgumentNullException: 'Value cannot be null. Parameter name: source'

This exception was originally thrown at this call stack:
    System.Linq.Enumerable.OfType<TResult>(System.Collections.IEnumerable)
    Telerik.Windows.Controls.FileDialogs.ExplorerControl.MainNavigationPaneLoaded(object, System.Windows.RoutedEventArgs)
    System.Windows.RoutedEventHandlerInfo.InvokeHandler(object, System.Windows.RoutedEventArgs)
    System.Windows.EventRoute.InvokeHandlersImpl(object, System.Windows.RoutedEventArgs, bool)
    System.Windows.UIElement.RaiseEventImpl(System.Windows.DependencyObject, System.Windows.RoutedEventArgs)
    System.Windows.UIElement.RaiseEvent(System.Windows.RoutedEventArgs)
    System.Windows.BroadcastEventHelper.BroadcastEvent(System.Windows.DependencyObject, System.Windows.RoutedEvent)
    System.Windows.BroadcastEventHelper.BroadcastLoadedEvent(object)
    MS.Internal.LoadedOrUnloadedOperation.DoWork()
    System.Windows.Media.MediaContext.FireLoadedPendingCallbacks()
    ...
    [Call Stack Truncated]

Thanks in advance for your reply

Note: I have no issue with direct call to FileDialog dialogs, the following code works:

new RadOpenFileDialog().ShowDialog();

FileDialogs

answered on 11 Aug 2020

3 answers

138 views

Help me customize RadDiagramToolBox

Hello, There was a problem raised while I tried to customize the source of radDiagramToolBox Demo, so I came to this courtyard.
In the demo version, the toolbox provides the default items provided by telerik ui control.
However, I want the Toolbox to have only Start, Rectangle, and Decision shape items.
While reading various articles here, I tried using the methods suggested there, but I could not realize this.
Please help me with this.
I am currently using the DiagramToolBox Demo source provided by Telerik UI for WPF.

Diagram

answered on 10 Aug 2020

1 answer

143 views

Resize visible days

I have a ScheduleView component inside a RadPane that is docked to Top as you can see in the Image1, I have 10 visible days with 3 groups, due to the size of the RadPane I can only see 3 days which is correct. Now, when I make the panel floating I would like to see the whole 10 days without having to scroll.

Is it possible automatically resize the visible days to fit in the available space?

This is the definition of my ScheduleView control:

<scheduleView:RadScheduleView x:Name="scheduleViewOrders" Grid.RowSpan="2" BorderThickness="0 1 1 1" MinAppointmentHeight="20" FirstVisibleTime="00:00" GroupHeaderContentTemplateSelector="{StaticResource CustomGroupHeaderContentTemplateSelector}" AppointmentItemContentTemplate="{ StaticResource AppointmentTemplate}" ResourceTypesSource="{StaticResource ResourcesTypes}" PreviewMouseWheel="ScheduleViewOrders_PreviewMouseWheel" xmlns:local="clr-namespace:ProductionScheduler.ViewModel.Production" HorizontalScrollBarVisibility="Visible" >

<scheduleView:RadScheduleView.ActiveViewDefinition>

<scheduleView:DayViewDefinition GroupFilter="{Binding GroupFilter}" Orientation="Horizontal" VisibleDays="10" MinorTickLength="1h"

MajorTickLength="1h" MinTimeRulerExtent="3000"/>

</scheduleView:RadScheduleView.ActiveViewDefinition>

<scheduleView:RadScheduleView.GroupDescriptionsSource>

<scheduleView:GroupDescriptionCollection>

<scheduleView:DateGroupDescription></scheduleView:DateGroupDescription>

<scheduleView:ResourceGroupDescription ResourceType="Schedule" />

</scheduleView:GroupDescriptionCollection>

</scheduleView:RadScheduleView.GroupDescriptionsSource>

</scheduleView:RadScheduleView>

And this is the definition of the GroupHeaderContentTemplateSelector:

<localStyles:CustomGroupHeaderContentTemplateSelector x:Key="CustomGroupHeaderContentTemplateSelector">

<localStyles:CustomGroupHeaderContentTemplateSelector.HorizontalTemplate>

<DataTemplate>

<ContentPresenter Content="{Binding FormattedName}" Margin="2" Width="80" Height="30" VerticalAlignment="Center"/>

</DataTemplate>

</localStyles:CustomGroupHeaderContentTemplateSelector.HorizontalTemplate>

<localStyles:CustomGroupHeaderContentTemplateSelector.VerticalTemplate>

<DataTemplate>

<telerik:LayoutTransformControl VerticalAlignment="Center">

<telerik:LayoutTransformControl.LayoutTransform>

<RotateTransform Angle="0" />

</telerik:LayoutTransformControl.LayoutTransform>

<ContentPresenter Content="{Binding FormattedName}" Margin="5" Width="70"/>

</telerik:LayoutTransformControl>

</DataTemplate>

</localStyles:CustomGroupHeaderContentTemplateSelector.VerticalTemplate>

<localStyles:CustomGroupHeaderContentTemplateSelector.HorizontalResourceTemplate>

<DataTemplate>

<ContentPresenter Content="{Binding Name.DisplayName}" Margin="2" Width="80" Height="30" VerticalAlignment="Center"/>

</DataTemplate>

</localStyles:CustomGroupHeaderContentTemplateSelector.HorizontalResourceTemplate>

<localStyles:CustomGroupHeaderContentTemplateSelector.VerticalResourceTemplate>

<DataTemplate>

<telerik:LayoutTransformControl VerticalAlignment="Center">

<telerik:LayoutTransformControl.LayoutTransform>

<RotateTransform Angle="0" />

</telerik:LayoutTransformControl.LayoutTransform>

<ContentPresenter Content="{Binding FormattedName}" Margin="5" Width="60" Height="23" MaxHeight="23" MinHeight="23"/>

</telerik:LayoutTransformControl>

</DataTemplate>

</localStyles:CustomGroupHeaderContentTemplateSelector.VerticalResourceTemplate>

</localStyles:CustomGroupHeaderContentTemplateSelector>

ScheduleView

answered on 10 Aug 2020

1 answer

169 views

Is Onvif supported?

Is the webcam control capable of using Onvif compatible net cameras? Onvif is a protocol and hundreds of security cameras support it, see: https://www.onvif.org/ for further details.

Windows 10 2004 also supports it. But before I buy such a camera I wanted to know if the webcam control can use it? https://blogs.windows.com/windowsdeveloper/2019/10/15/announcing-windows-10-support-for-network-cameras/.

More details to connect a camera, here: https://blogs.windows.com/windowsdeveloper/2019/10/10/connecting-network-cameras-to-windows-10-devices/#q0HZLYwmvHbx7F2e.97.

Thanks

Mike

WebCam

answered on 10 Aug 2020

1 answer

65 views

telerik .dll libraries do not loead to my coleagues existing project

Hello,

A colleague of mine handed to me a project he has previously created. He has used Telerik .dll libraries from "Telerik UI controls for WPF". I have installed this extension trial and I would expect these libraries would automatically load in my VS2019. It is not the case unfortunatelly. I have to delete them and manually add them again. I think the problem is with versions of the libraries but there are plenty of them used and it is hard to do it all manually. What am I doing wrong? Thanks a lot

Kind regards

Jan

General Discussions

answered on 10 Aug 2020

3 answers

285 views

Customizing RadDiagramToolbox

The tool box that hold shapes has 3 shapes listed in a row by default

The tool box also assumes a vertical orientation.

If suppose I need to align the tool box on top of the diagram, how can i do it ?

Diagram

answered on 10 Aug 2020