Questions on UI for WPF Forum

2 answers

99 views

It would be a nicer UX if a user did not have to first move the frozen column indicator in order to resize a column.

I am happy to style it myself this way but I am struggling to find the correct element, is it the PART_FrozenColumnsPreview element?

Regards,
Maurice

GridView

answered on 13 Mar 2018

1 answer

101 views

Is it supported to add ContextMenu on a RadContextMenu?

Hello, my case is: I have a RadContextMenu, and there's a RadListBox filling the RadMenuGroupItem of the RadContextMenu. And then I added a TextBlock in the ItemTemplate of the RadListBox. And finally, I added a ContextMenu on this TextBlock, this ContextMenu on TextBlock didn't work. Right clicking on the TextBlock which is also the an Item of the RadListBox, no ContextMenu pop up, nothing happened. So what's the reason of it? Is this kind of case supported? Thanks for any comments, that would be great help for me, thanks a lot.

ContextMenu

answered on 13 Mar 2018

1 answer

187 views

Can't set a theme for PDF Viewer

Hi, I'm trying to use the PDF Viewer control, everything works nicely except for one thing,

he toolbar theme won't change no matter what I select.

            <telerik:RadPdfViewerToolBar x:Name="pdfViewTools"
                                         RadPdfViewer="{Binding ElementName=pdfViewer, Mode=OneTime}"
                                         telerik:StyleManager.Theme="Fluent"
                                         HasClockwiseButton="False"
                                         HasCounterclockwiseButton="False"
                                         HasOpenButton="False"
                                         HasPageDownButton="False"
                                         HasPagesCountGroup="False"
                                         HasPageUpButton="False"
                                         HasSignatureButton="False"/>
            <telerik:RadPdfViewer x:Name="pdfViewer"
                                  DataContext="{Binding CommandDescriptors, ElementName=pdfViewer}"
                                  Grid.Row="1"
                                  telerik:StyleManager.Theme="Fluent"
                                  telerik:RadPdfViewerAttachedComponents.RegisterContextMenu="True"/>

Where am I going wrong?

PDFViewer

answered on 13 Mar 2018

3 answers

219 views

RadScheduleView - different appointment types

Hello,

I'm working on a scenario where i have to use 2 different types of appointments, with different properties. both share a common abstract base class, which is derived from the Appointment Class.

public abstract class MyBaseClass : Appointment

{

private string _designation;

public string Designation

{

get { return this.Storage<MyBaseClass>()._designation; }

set

{

var storage = this.Storage<MyBaseClass>();

if (value == storage._designation) return;

storage._designation = value;

this.OnPropertyChanged(() => this.Designation);

}

public class DerivedType : MyBaseClass

{

private string _longText;

public string LongText

{

get { return this.Storage<DerivedType>()._longText; }

set

{

var storage = this.Storage<DerivedType>();

if (value == storage._longText) return;

storage._longText = value;

this.OnPropertyChanged(() => this.LongText);

}

public class OtherType : MyBaseClass

{

private bool _myBool;

public bool MyBool

{

get { return this.Storage<OtherType>()._myBool; }

set

{

var storage = this.Storage<OtherType>();

if (value == storage._myBool) return;

storage._myBool = value;

this.OnPropertyChanged(() => this.MyBool);

}

When using a ListBox, i would simply put multiple datatemplates with DataType={x:Type ...} into the listbox resources. As this did not work, I tried to override ScheduleViewDataTemplateSelector:

public override DataTemplate SelectTemplate(object item, DependencyObject container, ViewDefinitionBase activeViewDefinition)

{

Occurrence o = (item as Occurrence);

if (o.Appointment is DerivedType)

return this.DerivedTypeTemplate;

...

}

<local:TelerikScheduleTemplateSelector x:Key="ScheduleTemplateSelector">

<local:TelerikScheduleTemplateSelector.DerivedTypeTemplate>

<DataTemplate>

<Grid Background="LightGray">

<Grid.RowDefinitions>

<RowDefinition MinHeight="15"/>

<RowDefinition Height="*"/>

</Grid.RowDefinitions>

<Label Grid.Row="0" Content="{Binding Appointment.LongText}" />

<Label Grid.Row="1" MinHeight="30" Margin="2" Background="Green" />

</Grid>

</DataTemplate>

<local:TelerikScheduleTemplateSelector.OtherTypeTemplate>

<DataTemplate>

<Grid Background="LightGoldenrodYellow">

<Grid.RowDefinitions>

<RowDefinition Height="20"/>

<RowDefinition Height="*"/>

</Grid.RowDefinitions>

<CheckBox Grid.Row="0" Margin="2" IsChecked="{Binding Appointment.MyBool}" Content="asdf" />

</Grid>

</DataTemplate>

</local:TelerikScheduleTemplateSelector.OtherTypeTemplate>

</local:TelerikScheduleTemplateSelector>

this seems to work partially, but I found some problems:

-> the bindings are not recognized, as I cannot set the DataType to DerivedType or to OtherType
-> Sometimes when switching to other weeks in the scheduleview, I get Binding Errors, because of a missing MyBool Property on DerivedType, and vice-versa

Is there an easier way to get different looks based on the type of the appointment? Could you point me in the right direction, or maybe provide a small sample?

Thanks a lot!

ScheduleView

answered on 13 Mar 2018

5 answers

233 views

WPF RadDocking AutomationId not set

Hi,

we are using the rad docking and set a automationid to all levels (RadDocking, RadSplitContainer, RadPaneGroup and RadPane) but if we let the CUIT run it needs much time or he doesn´t find the control.

Also if we check the UI with AccChecker we can see that there is no AutomationId set.

If have downloaded a example from this thread:

https://www.telerik.com/forums/cuit-is-failing-perform-actions-on-the-controls-placed-inside-the-radpanegroup#g4MK_X_CbU-XMfaGOlK9vg

But it doesn´t work on my computer and I can see that there is no automationid set.

See AutomationIds in the Code.jpg file.

In the file ACC.jpg you could see that there is no AutomationId found.

Currently it´s not possible to upload the source code because it´s to big and it´s not allowed.

Could you tell me where we miss something or is it a bug?

Thanks for your help.

Docking

answered on 13 Mar 2018

1 answer

559 views

Remove Border

I cannot find a way to remove the gray border in the RadPdfViewer.
The border is inside of the scrollviewer and I cannot find a way to set Borderwith or Margin or Padding to Zero.

PDFViewer

answered on 13 Mar 2018

1 answer

287 views

FixedDocumentViewers Exception

I have a Window that I have dropped a RadPdfViewer on, the system added Telerik.Windows.Controls, Telerik.Windows.Controls.FixedDocumentViewers, Telerik.Windows.Documents.Core, and Telerik.Windows.Documents.Fixed.

I have done nothing else, when I run the app I get an Exception:

System.Windows.Markup.XamlParseException
HResult=0x80131501
Message=Could not load file or assembly 'Telerik.Windows.Controls.FixedDocumentViewers, PublicKeyToken=5803cfa389c90ce7' or one of its dependencies. The system cannot find the file specified.
Source=PresentationFramework
StackTrace:
   at System.Windows.Markup.WpfXamlLoader.Load(XamlReader xamlReader, IXamlObjectWriterFactory writerFactory, Boolean skipJournaledProperties, Object rootObject, XamlObjectWriterSettings settings, Uri baseUri)
   at System.Windows.Markup.WpfXamlLoader.LoadBaml(XamlReader xamlReader, Boolean skipJournaledProperties, Object rootObject, XamlAccessLevel accessLevel, Uri baseUri)
   at System.Windows.Markup.XamlReader.LoadBaml(Stream stream, ParserContext parserContext, Object parent, Boolean closeStream)
   at System.Windows.Application.LoadComponent(Object component, Uri resourceLocator)
   at Foundation.Windows.Controls.Pdf.PdfViewer.InitializeComponent() in D:\Mw\Insurance\Source\Alabama\Common\Foundation.Windows.Controls.Pdf\PdfViewer.xaml:line 1
Inner Exception 1:
FileNotFoundException: Could not load file or assembly 'Telerik.Windows.Controls.FixedDocumentViewers, PublicKeyToken=5803cfa389c90ce7' or one of its dependencies. The system cannot find the file specified.

PDFViewer

answered on 12 Mar 2018

5 answers

338 views

Listbox Custom DragDropBehavior

Hi!

I'm trying to use binding in DragDropBehavior of RadListBox like this

View gets viewmodel via injection

public partial class MyView : UserControl
{
public MyView (ViewModels.MyViewModel viewModel)
{
InitializeComponent();
DataContext = viewModel;
}
}

Behavior code:

public class MyDragDropBehavior : Telerik.Windows.DragDrop.Behaviors.ListBoxDragDropBehavior
{
public override bool CanDrop(Telerik.Windows.DragDrop.Behaviors.DragDropState state)
{
return state.IsSameControl;
}

public override void Drop(Telerik.Windows.DragDrop.Behaviors.DragDropState state)
{
base.Drop(state);
DropCommand.Execute(null);
}

public ICommand DropCommand
{
get { return (ICommand)GetValue(DropCommandProperty); }
set { SetValue(DropCommandProperty, value); }
}

public static readonly DependencyProperty DropCommandProperty =DependencyProperty.Register("DropCommand", typeof(ICommand), typeof(MyDragDropBehavior), new PropertyMetadata(null));
}

Items binding is working well. Behavior is working but binding to DropCommand is not. I obtain binding error:

Cannot find source for binding with reference 'RelativeSource FindAncestor, AncestorType='System.Windows.Controls.UserControl', AncestorLevel='1''. BindingExpression:Path=DataContext.DropCommand; DataItem=null; target element is 'MyDragDropBehavior' (HashCode=25707777); target property is 'DropCommand' (type 'ICommand')

ViewModel is

public class MyViewModel
{
public MyViewModel()
{
DropCommand = new DelegateCommand(OnDrop);
Items = new ObservableCollection<MyItem>();
}
public ObservableCollection<MyItem> Items { get; set; }
public DelegateCommand DropCommand { get; set; }

private void OnDrop(){}
}

What is wrong?

ListBox

answered on 12 Mar 2018

1 answer

79 views

Reg: PIVOT GRID Custome View Save

Hello Team,

We are into the WPF application development. We are using the RadPivotGrid control to view the information grid. To view the same BI format we are saving the view(i.e in XML format). When we save the view. our application is saving the data in our database in XML format. Please review the attached file which is saved in xml format. But we want to know the what is the <ValueTypes> node which is created while saving the view. We want to know what is the version number saved in the file. Is there any relation with .net framework version while generating the XML string?

Below is the XML string.

<?xml version="1.0"?>
<RawData xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<SerializationString><?xml version="1.0" encoding="utf-16"?>
<Data xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<T>
<TI K="1984105613" N="Telerik.Pivot.Core.LocalDataSourceProvider, Telerik.Pivot.Core, Version=2014.2.729.45, Culture=neutral, PublicKeyToken=5803cfa389c90ce7" />
</T>
<P>
<PV Key="1" TypeKey="-664072138">
<Value xsi:type="xsd:string">&lt;DataProviderSettings xmlns="http://schemas.datacontract.org/2004/07/AIMSDotNet" xmlns:i="http://www.w3.org/2001/XMLSchema-instance"&gt;&lt;Aggregates xmlns:a="http://schemas.microsoft.com/2003/10/Serialization/Arrays"&gt;&lt;a:anyType i:type="b:PropertyAggregateDescription" xmlns:b="http://schemas.datacontract.org/2004/07/Telerik.Pivot.Core"&gt;&lt;b:CustomName i:nil="true"/&gt;&lt;b:TotalFormat i:nil="true" xmlns:c="http://schemas.datacontract.org/2004/07/Telerik.Pivot.Core.Totals"/&gt;&lt;b:StringFormat i:nil="true"/&gt;&lt;b:StringFormatSelector i:nil="true" xmlns:c="http://schemas.datacontract.org/2004/07/Telerik.Pivot.Core.Aggregates"/&gt;&lt;b:AggregateFunction i:type="b:SumAggregateFunction" xmlns:c="http://schemas.datacontract.org/2004/07/Telerik.Pivot.Core.Aggregates"/&gt;&lt;b:PropertyName&gt;Stock&lt;/b:PropertyName&gt;&lt;/a:anyType&gt;&lt;/Aggregates&gt;&lt;AggregatesLevel&gt;0&lt;/AggregatesLevel&gt;&lt;AggregatesPosition&gt;Rows&lt;/AggregatesPosition&gt;&lt;Columns xmlns:a="http://schemas.microsoft.com/2003/10/Serialization/Arrays"&gt;&lt;a:anyType i:type="b:PropertyGroupDescription" xmlns:b="http://schemas.datacontract.org/2004/07/Telerik.Pivot.Core"&gt;&lt;b:CustomName i:nil="true"/&gt;&lt;b:GroupComparer i:type="b:GroupNameComparer"/&gt;&lt;b:SortOrder&gt;Ascending&lt;/b:SortOrder&gt;&lt;b:GroupFilter i:nil="true" xmlns:c="http://schemas.datacontract.org/2004/07/Telerik.Pivot.Core.Filtering"/&gt;&lt;b:ShowGroupsWithNoData&gt;false&lt;/b:ShowGroupsWithNoData&gt;&lt;b:CalculatedItems/&gt;&lt;b:PropertyName&gt;WarehouseCode&lt;/b:PropertyName&gt;&lt;/a:anyType&gt;&lt;/Columns&gt;&lt;Filters xmlns:a="http://schemas.microsoft.com/2003/10/Serialization/Arrays"/&gt;&lt;Rows xmlns:a="http://schemas.microsoft.com/2003/10/Serialization/Arrays"&gt;&lt;a:anyType i:type="b:PropertyGroupDescription" xmlns:b="http://schemas.datacontract.org/2004/07/Telerik.Pivot.Core"&gt;&lt;b:CustomName i:nil="true"/&gt;&lt;b:GroupComparer i:type="b:GroupNameComparer"/&gt;&lt;b:SortOrder&gt;Ascending&lt;/b:SortOrder&gt;&lt;b:GroupFilter i:nil="true" xmlns:c="http://schemas.datacontract.org/2004/07/Telerik.Pivot.Core.Filtering"/&gt;&lt;b:ShowGroupsWithNoData&gt;false&lt;/b:ShowGroupsWithNoData&gt;&lt;b:CalculatedItems/&gt;&lt;b:PropertyName&gt;StyleDescription&lt;/b:PropertyName&gt;&lt;/a:anyType&gt;&lt;a:anyType i:type="b:PropertyGroupDescription" xmlns:b="http://schemas.datacontract.org/2004/07/Telerik.Pivot.Core"&gt;&lt;b:CustomName i:nil="true"/&gt;&lt;b:GroupComparer i:type="b:GroupNameComparer"/&gt;&lt;b:SortOrder&gt;Ascending&lt;/b:SortOrder&gt;&lt;b:GroupFilter i:nil="true" xmlns:c="http://schemas.datacontract.org/2004/07/Telerik.Pivot.Core.Filtering"/&gt;&lt;b:ShowGroupsWithNoData&gt;false&lt;/b:ShowGroupsWithNoData&gt;&lt;b:CalculatedItems/&gt;&lt;b:PropertyName&gt;ColorDescription&lt;/b:PropertyName&gt;&lt;/a:anyType&gt;&lt;a:anyType i:type="b:PropertyGroupDescription" xmlns:b="http://schemas.datacontract.org/2004/07/Telerik.Pivot.Core"&gt;&lt;b:CustomName i:nil="true"/&gt;&lt;b:GroupComparer i:type="b:GroupNameComparer"/&gt;&lt;b:SortOrder&gt;Ascending&lt;/b:SortOrder&gt;&lt;b:GroupFilter i:nil="true" xmlns:c="http://schemas.datacontract.org/2004/07/Telerik.Pivot.Core.Filtering"/&gt;&lt;b:ShowGroupsWithNoData&gt;false&lt;/b:ShowGroupsWithNoData&gt;&lt;b:CalculatedItems/&gt;&lt;b:PropertyName&gt;Size&lt;/b:PropertyName&gt;&lt;/a:anyType&gt;&lt;/Rows&gt;&lt;/DataProviderSettings&gt;</Value>
</PV>
</P>
<R>
<RV Key="21184986" IsRoot="true" TypeKey="1984105613">
<D>
<PD PN="" VK="1" RK="0" TK="1984105613" TCK="0" />
</D>
</RV>
</R>
</Data></SerializationString>
<ValueTypes>
<string>Telerik.Pivot.Core.LocalDataSourceProvider, Telerik.Pivot.Core, Version=2014.2.729.45, Culture=neutral, PublicKeyToken=5803cfa389c90ce7</string>
</ValueTypes>
</RawData>

We want to know what is the significance of the version number(i.e Version=2014.2.729.45) in the below context?

<ValueTypes>
<string>Telerik.Pivot.Core.LocalDataSourceProvider, Telerik.Pivot.Core, Version=2014.2.729.45, Culture=neutral, PublicKeyToken=5803cfa389c90ce7</string>
</ValueTypes>
</RawData>

Following are the software specifications

OS: WINDOWS 10

.Net Framework: 4.6.2

Telerik Version: 14.2.729.0

Regards,

Chakradhar

PivotGrid

answered on 12 Mar 2018

11 answers

1.2K+ views

UpdateValueEvent="LostFocus" still updates immediately on typing.

Hi,

My company is using a RadNumericUpDown control being bound via xml to a viewmodel double value. We don't want the viewmodel's value to change until the numeric control has lost focus, however I haven't found a way to do this. I tried using the UpdateValueEvent="LostFocus" property setting in the xaml, however I notice that the viewmodel's value is still changing every keystroke, as opposed to being changed only when the numeric control has finally lost focus.

When that didn't work, I also tried setting the Value={Binding vmvalue, Mode=TwoWay, UpdateSourceTrigger=LostFocus} but that seemed to cause it to never update.

Am I missing something? Example code below:

<Window x:Class="RadNumSandbox.MainWindow"

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

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

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

xmlns:local="clr-namespace:RadNumSandbox"

Title="MainWindow" Height="200" Width="200"

>

<Grid>

<Grid.RowDefinitions>

<RowDefinition Height="Auto" />

</Grid.RowDefinitions>

<telerik:RadNumericUpDown x:Name="radbox" Grid.Row="0" Value="{Binding Val, Mode=TwoWay}" UpdateValueEvent="LostFocus" />

</Grid>

</Window>

And the code behind:

using System.ComponentModel;

using System.Diagnostics;

using System.Windows;

namespace RadNumSandbox

{

/// <summary>

/// Interaction logic for MainWindow.xaml

/// </summary>

public partial class MainWindow : Window

{

public MainWindow()

{

this.DataContext = this;

InitializeComponent();

}

private double val = 1.1;

public double Val

{

get { return val; }

set

{

if (value != val)

{

val = value;

RaisePropertyChanged( "Val" );

Debug.Print( string.Format( "Val = {0}", val ) );

}

#region INotifyPropertyChanged Members

public event PropertyChangedEventHandler PropertyChanged;

#endregion

#region Methods

private void RaisePropertyChanged( string propertyName )

{

// take a copy to prevent thread issues

PropertyChangedEventHandler handler = PropertyChanged;

if (handler != null)

{

handler( this, new PropertyChangedEventArgs( propertyName ) );

}

#endregion

}

When I run this code in the debugger, if I type in 1.23<Enter> I will see this output:

Val = 1
Val = 1.2
Val = 1.23

This shows the bound value is being changed before the control has lost focus.

NumericUpDown

answered on 12 Mar 2018