Questions on UI for WPF Forum

3 answers

333 views

Are the WPF-controls completely comaptible with .net core 3? I developed a project. The xaml designer was working at first but sudddenly crashed(1st image) and then Visual Stutio 2019 crashed(2 image). When I reopen the project, xaml designer still crashed, then VS 2019 crashed.

With Framwork 4.7 is everything OK.

Installer and Visual Studio Extensions

answered on 15 Nov 2019

4 answers

626 views

[Solved] How can I get first and last columns that are currently visible(in sight)?

Hi there,

I hope you can help me with this, attached a screenshot that shows what I am looking for.

Thanks,

Bahram Afsharipoor

GridView

answered on 15 Nov 2019

1 answer

116 views

What should be the target type should ChartAxis3D.LineStyle

I want to set the line style in my chart but I don't know what type to target in the style. The documentation does not not say. Line? Path? Something else?

ChartView3D

answered on 14 Nov 2019

1 answer

145 views

No transition on certain conditions

Hi All
I would like to prevent the transition control from showing any transition/animation under certain conditions. For example, the content is bound to an enum field, for certain enum values I dont want it to transition.
I have tried using IValueConverter

public class DispatchContentTransitionConverter : IValueConverter

{

public TransitionProvider TransitionForward { get; set; }

public TransitionProvider TransitionBackward { get; set; }

public TransitionProvider NoTransition { get; set; }

public object Convert(object value, Type targetType, object parameter, CultureInfo culture)

{

if (value == null) return NoTransition;

KeyValuePair<int, string> OSDispatchStatus = (KeyValuePair<int, string>)value;

if (OSDispatchStatus.Key == SettingsConsts.OS_DispatchStatus_ReadytoBookCollection)

{

return TransitionForward;

}

else

{

return NoTransition;

}

public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)

{

throw new NotImplementedException();

}

But for this option I cannot set a "No Transition" transition

Second option tried: Setting Duration of the transition on TransitionStatusChanged, but this option only applies to the "Next" transition called not the current

private void MainTransControl_TransitionStatusChanged(object sender, Telerik.Windows.Controls.TransitionControl.TransitionStatusChangedEventArgs e)

{

OrderDispatchModel VM = DataContext as OrderDispatchModel;

if (VM != null )

{

if (VM.OSDispatchStatus.Key == SettingsConsts.OS_DispatchStatus_ReadytoBookCollection)

{

this.MainTransControl.Duration = new TimeSpan(0, 0, 1);

}

else

{

this.MainTransControl.Duration = new TimeSpan(0, 0, 0);

}

else

{

this.MainTransControl.Duration = new TimeSpan(0, 0, 0);

}

Anyone have any ideas of how to implement this?

TransitionControl

answered on 14 Nov 2019

1 answer

235 views

RadRibbonView's child controls not focusable through keyboard

Hi everybody.

I'm facing an issue with telerik's RadRibbonView for WPF controls. I set the focus through code by calling ribbonView.Focus(), but afterwards I can not move focus to buttons inside ribbon view. I tried setting IsTabStop on ribbon buttons manually, but it didn't work either. Sample Xaml code is as follows:

<telerik:RadRibbonWindow

x:Class="WpfRadRibbonFocusIssue.MainWindow"

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

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

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

xmlns:local="clr-namespace:WpfRadRibbonFocusIssue"

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

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

Title="MainWindow"

Width="800"

Height="450"

mc:Ignorable="d">

<telerik:RadRibbonWindow.Resources>

<Style x:Key="FocusedStyle">

<Setter Property="Control.Template">

<Setter.Value>

<ControlTemplate>

<Rectangle Stroke="Blue" StrokeThickness="1" />

</ControlTemplate>

</Setter.Value>

</Setter>

</Style>

</telerik:RadRibbonWindow.Resources>

<DockPanel>

<telerik:RadRibbonView

x:Name="ribbonView"

DockPanel.Dock="Top"

FocusVisualStyle="{StaticResource FocusedStyle}">

<telerik:RadRibbonTab Header="Tab 01">

<telerik:RadRibbonGroup Header="Group 01">

<telerik:RadRibbonButton IsTabStop="True" Text="Hello" />

<telerik:RadRibbonButton IsTabStop="True" Text="Hello 2" />

<telerik:RadRibbonButton IsTabStop="True" Text="Hello 3" />

</telerik:RadRibbonGroup>

</telerik:RadRibbonTab>

<telerik:RadRibbonTab Header="Tab 02">

<telerik:RadRibbonGroup Header="Group 02">

<telerik:RadRibbonButton Text="Command 01" />

<telerik:RadRibbonButton Text="Command 02" />

<telerik:RadRibbonButton Text="Command 03" />

</telerik:RadRibbonGroup>

</telerik:RadRibbonTab>

</telerik:RadRibbonView>

</DockPanel>

</telerik:RadRibbonWindow>

RibbonView and RibbonWindow

answered on 14 Nov 2019

4 answers

1.3K+ views

[Solved] How to: Find DataTemplate-Generated Elements

Hi there,

I have a DataTemplate that is added as TitleTemplate to a RadDocumentPane - as you see below. So I need to access to RadToggleButton which is inside my DataTemplate in code behind, can you please tell me how can i do that?

<Window.Resources>

<DataTemplate x:Key="SyncTemplate">

<Grid>

<Grid.ColumnDefinitions>

<ColumnDefinition Width="Auto" />

<ColumnDefinition />

</Grid.ColumnDefinitions>

<ContentPresenter Content="{Binding}" Margin="0,5,0,0"/>

<telerik:RadToggleButton x:Name="xScrollSync" Grid.Column="1" HorizontalAlignment="Right" Content="XScroll Sync" Width="75" />

</Grid>

</DataTemplate>

</Window.Resources>

<Grid>

<telerik:RadDocking Margin="0 60 0 30" HorizontalAlignment="Stretch" Height="auto"

HasDocumentHost="False" Width="auto" VerticalAlignment="Stretch">

<telerik:RadSplitContainer telerik:ProportionalStackPanel.RelativeSize="1000, 200">

<telerik:RadSplitContainer x:Name="ganttViewSplit" InitialPosition="DockedLeft"

HorizontalAlignment="Stretch" Height="auto"

VerticalAlignment="Stretch" telerik:ProportionalStackPanel.RelativeSize="800,200">

<telerik:RadPaneGroup>

<telerik:RadDocumentPane x:Name="ganttDoc" TitleTemplate="{StaticResource SyncTemplate}">

<telerik:RadDocumentPane.Content>

<Grid>

</Grid>

</telerik:RadDocumentPane.Content>

</telerik:RadDocumentPane>

</telerik:RadPaneGroup>

</telerik:RadSplitContainer>

</telerik:RadDocking>

</Grid>

Docking

answered on 13 Nov 2019

10 answers

1.0K+ views

Beginner question - How to visually edit tabs?

Ok, stupid beginner question here, but how do I visually edit what goes into each tab for WPF UI Desktop using Visual Studio 2019?

When I drag the Tab Control into the design window, it places it just fine. But, if I try to add anything, the items do not show up per tab. Is there some trick to be able to edit a multi-tab XAML document visually?

TabControl

answered on 13 Nov 2019

3 answers

284 views

Cancel the split button

Hi
how can i make the color picker has only one button, so if the user press everywhere then the drop down open.

i use this event code to do this task but i hope there is a build in functionality to do that

private void RadColorPicker_MouseUp(object sender, MouseButtonEventArgs e)
{
if (e.OriginalSource is RadButton && sender is RadColorPicker)
(sender as RadColorPicker).IsDropDownOpen = true;
}

Thanks,
Akram

ColorPicker

answered on 13 Nov 2019

1 answer

66 views

Gridview question

I had a question on using Teleriks GridView component.

1. If I bind my GridView to a database table, how can I make certain columns editable when the user clicks into that specific column?

2. Also, the editing needs to support different box types, i.e, one of the columns should become an editable drop down combo box when the user clicks into it as opposed to display a drop drop down box for every row of that column if you see what I mean

Any examples would be much appreciated.

Thanks in advance!

GridView

answered on 13 Nov 2019

2 answers

282 views

Ticks offset to selected Value (ranged)

Hello,

I want to provide a Radslider with ranged selection, but I have an issue with the ticks.

As you can see on the screenshots I provided (Min and Max show the selected value in them), the offset of the ticks to the actual selection can be quite heavy on the first thumb.

I assume this is because you want to enable people to selecte a range from one value to the exact same value with both thumbs. However, in this case I do not need that and rather have the thumbs not be able to select the same value - and thus be able to have exact tick captions. Because as it is right now, users will not like it. It is counter-intuitive.

Is there any way right now to solve this issue?

Xaml-Code:

<StackPanel Grid.Row="1" Orientation="Vertical" Margin="8">

<telerik:Label x:Name="sliderlabel" HorizontalAlignment="Center" HorizontalContentAlignment="Center" FontWeight="Bold" Margin="0"/>

<telerik:RadSlider x:Name="slider" Orientation="Horizontal" HorizontalAlignment="Stretch" HorizontalContentAlignment="Stretch" Margin="0"

IsDeferredDraggingEnabled="True" HandlesVisibility="Visible" IsSnapToTickEnabled="False" IsMoveToPointEnabled="False" MiddleThumbClickMode="DecreaseNearestThumb" IsSelectionRangeEnabled="True" AutoToolTipPlacement="BottomRight" TickPlacement="TopLeft"

SelectionStartChanged="Slider_SelectionStartChanged" SelectionEndChanged="Slider_SelectionEndChanged" DragCompleted="Slider_DragCompleted">

<telerik:RadSlider.AutoToolTipContentTemplate>

<DataTemplate>

<TextBlock Text="{Binding .,StringFormat=N0}"/>

</DataTemplate>

</telerik:RadSlider.AutoToolTipContentTemplate>

<telerik:RadSlider.TickTemplate>

<DataTemplate>

<Grid HorizontalAlignment="Left">