Questions on UI for WPF Forum

4 answers

759 views

Customizing Axis's Label and Title in RadCartesianChart

Hi,

1) I need to place the HorizontalAxis Label above the chart. Is that possible?

2) I am trying to change the alignment of both Axis's titles: the HorizontalAxis Title to "left" and the VerticalAxis Title to "bottom" (near Chart's origin). How can I do that?

Could you show me a code example?

Thank you.

Chart

answered on 17 Dec 2020

1 answer

110 views

Delay in axis rotation compared to 3D graph

Hi,

I'm working with ChartView3D and Telerik UI for a project. I am using the XAML tags for the graph. I can build and compile the graph. During runtime, when I change the view angles of the graph and rotate, zoom it frequently the axes gets updated with the graph by a small delay. Sometime the axes get stuck. I have attached the screenshot for reference.

The code below is used to create the 3D graph,

<telerik:RadCartesianChart3D x:Name="E3DChart" Visibility="Collapsed">
                                            <telerik:RadCartesianChart3D.XAxis>
                                                <telerik:CategoricalAxis3D Title="Position">
                                                    <telerik:CategoricalAxis3D.TitleTemplate>
                                                        <DataTemplate>
                                                            <TextBlock Text="{Binding}" Foreground="White" Padding="3" FontSize="20" />
                                                        </DataTemplate>
                                                    </telerik:CategoricalAxis3D.TitleTemplate>
                                                    <telerik:CategoricalAxis3D.LabelStyle>
                                                        <Style TargetType="TextBlock">
                                                            <Setter Property="Foreground" Value="#FFD4D4D4" />
                                                        </Style>
                                                    </telerik:CategoricalAxis3D.LabelStyle>
                                                </telerik:CategoricalAxis3D>
                                            </telerik:RadCartesianChart3D.XAxis>
                                            <telerik:RadCartesianChart3D.YAxis>
                                                <telerik:CategoricalAxis3D Title="Tube">
                                                    <telerik:CategoricalAxis3D.TitleTemplate>
                                                        <DataTemplate>
                                                            <TextBlock Text="{Binding}" Foreground="White" Padding="3" FontSize="20"/>
                                                        </DataTemplate>
                                                    </telerik:CategoricalAxis3D.TitleTemplate>
                                                    <telerik:CategoricalAxis3D.LabelStyle>
                                                        <Style TargetType="TextBlock">
                                                            <Setter Property="Foreground" Value="#FFD4D4D4" />
                                                        </Style>
                                                    </telerik:CategoricalAxis3D.LabelStyle>
                                                </telerik:CategoricalAxis3D>
                                            </telerik:RadCartesianChart3D.YAxis>
                                            <telerik:RadCartesianChart3D.ZAxis>
                                                <telerik:LinearAxis3D Title="Count">
                                                    <telerik:LinearAxis3D.TitleTemplate>
                                                        <DataTemplate>
                                                            <TextBlock Text="{Binding}" Foreground="White" Padding="3" FontSize="20"/>
                                                        </DataTemplate>
                                                    </telerik:LinearAxis3D.TitleTemplate>
                                                    <telerik:LinearAxis3D.LabelStyle>
                                                        <Style TargetType="TextBlock">
                                                            <Setter Property="Foreground" Value="#FFD4D4D4" />
                                                        </Style>
                                                    </telerik:LinearAxis3D.LabelStyle>
                                                </telerik:LinearAxis3D>
                                            </telerik:RadCartesianChart3D.ZAxis>
                                            <telerik:RadCartesianChart3D.Behaviors>
                                                <telerik:Chart3DCameraBehavior Distance="2500"
                                               FirstAngle="225"
                                               SecondAngle="85"/>
                                                <telerik:Chart3DTooltipBehavior ShowDuration="10000"/>
                                            </telerik:RadCartesianChart3D.Behaviors>
                                            <telerik:RadCartesianChart3D.Grid>
                                                <telerik:CartesianChart3DGrid GridLineThickness="3"/>
                                            </telerik:RadCartesianChart3D.Grid>
                                        </telerik:RadCartesianChart3D>

ChartView3D

answered on 17 Dec 2020

3 answers

184 views

MVVM Caluculated Column with outside value

Hi,

I have a list of workers, whom all needs to have an amount paid by way of their hours times a value.

I have a WorkerModel class:

public class WorkerModel

{

public string Name { get; set; }

public int HoursWorking { get; set; }

}

Then I have a CompanyModel that contains the workers:

public class CompanyModel

{

private ObservableCollection<WorkerModel> _workers = new ObservableCollection<WorkerModel>();

public ObservableCollection<WorkerModel> Workers

{

get { return _workers ; }

set { _workers = value; }

}

And then I have a ViewModel that allows me to bind to the view:

public class MainViewModel : ViewModelBase

{

private readonly CompanyModel _company;

public MainViewModel()

{

_company= new CompanyModel();

}

public ObservableCollection<CompanyModel > Workers

{

get { return _company.Workers; }

}

public decimal PayoutPerHour

{

get { return 71M; }

}

Lastly my view looks like this:

<telerik:RadGridView ShowGroupPanel="False"

HorizontalAlignment="Left"

telerik:StyleManager.Theme="Summer"

AutoGenerateColumns="False"

GroupRenderMode="Flat"

NewRowPosition="Bottom"

ItemsSource="{Binding Workers}"

Grid.Column="0">

<telerik:RadGridView.Columns>

<telerik:GridViewDataColumn Header="Name" DataMemberBinding="{Binding Path=Name}" Width="230"></telerik:GridViewDataColumn>

<telerik:GridViewExpressionColumn Header="Payout" Width="100" Expression="HoursWorking * PayoutPerHour"></telerik:GridViewExpressionColumn></telerik:GridViewDataColumn>

</telerik:RadGridView.Columns>

</telerik:RadGridView>

My goal is to have the HoursWorking from the WorkerModel, multiply with the PayoutPerHour thats in the ViewModel. I have in this example made the PayoutPerHour a static value, which it is not in my full example. I need the Expressioncolumn to update whenever either of those two properties are updated. But I can't tell the viewmodel what the WorkerModel is doing, since they are in a collection in the CompanyModel.

Any clever way to do this?

GridView

answered on 16 Dec 2020

1 answer

121 views

Remove exponent in RadMaskedNumericInput

Hi there,

I am using RadMaskedNumericInput to prevent users to input alphabet characters in my numeric input field. But if users enter more than 16 digits, the exponent symbol will appear. Is there any way to remove the exponent symbol.

Best regard.

Viet

MaskedInput (Numeric, DateTime, Text, Currency)

answered on 16 Dec 2020

3 answers

125 views

Column binding with enum

I would like to know if there is a way to bind the columns to a enum value, and when I drag/drop the tiles between the columns, the correct enum assigned to that column is attributed to the object.

TaskBoard

answered on 16 Dec 2020

1 answer

788 views

x:Name="XXX" error 'Windows' does not exist in the namespace

windows 10 WPF .Net Core 3.1 Telerik 2020 R3 Sp1:

error:

SeverityCodeDescriptionProjectFileLineSuppression State
ErrorCS0234The type or namespace name 'Windows' does not exist in the namespace 'XXXXX' (are you missing an assembly reference?)

==========================================================================

no x:Name="btTest"

is ok!!!

Installer and Visual Studio Extensions

answered on 15 Dec 2020

1 answer

293 views

Prism + Telerik error

add x:Name="xxxx" show error "" error CS0234: The type or namespace name 'Windows' does not exist in the namespace '' (are you missing an assembly reference?)

source：https://share.dmca.gripe/EUqiplofuPzhN3Kv.rar

General Discussions

answered on 15 Dec 2020

5 answers

328 views

RadBusyIndicator not displayed correctly

I have the following WPF code

<telerik:RadBusyIndicator x:Name="ThumbnailLoadingIndicator" BusyContent="Loading clip..." IsIndeterminate="True" IsTabStop="False">

</telerik:RadBusyIndicator>

and as you can see on the attached screenshot it is not rendered properly (i.e. the spinning circles are cut on top and bottom). I have tried to use various sizes and alignment but none of them are working so I guess there is an extra property I need to tweak (or there is a bug).

FYI I am using the fluent theme.

General Discussions

answered on 15 Dec 2020

2 answers

227 views

How to set font when using Import?

Reading the article here, it seems to indicate that setting of the font via control reference will not change the font on an imported document.

https://docs.telerik.com/devtools/wpf/controls/radrichtextbox/frequently-asked-questions

Dim appPathAndFile As String = System.AppDomain.CurrentDomain.BaseDirectory & "\TreeScapesLog.txt"

Dim docProvider As New TxtFormatProvider

Using input As Stream = File.OpenRead(appPathAndFile)

Dim docLogFile As RadDocument = docProvider.Import(input)

rtbLogFile.Document = docLogFile

End Using

What that article suggests is the TxtFormatProvider strips the content of all formatting ... but it seems to assign a very large default font size. How do I go about changing that font size when using TxtFormatProvider.Import ... I couldn't find any examples?

Cheers, Rob.

RichTextBox

answered on 14 Dec 2020

3 answers

220 views

Layout Load not working following upgrade

Hello

I have upgraded my version from 2019 R3 to 2020 R3 and have found that the GridView layouts saved in the old version will not longer load in the new version.

Here is my existing code:

string layout; // loaded from file

PersistenceManager manager = new PersistenceManager();

byte[] byteArray = Encoding.ASCII.GetBytes(layout);

MemoryStream stream = new MemoryStream(byteArray);

manager.Load(this.RadGridView, stream);

When trying to load the layout it fails with:

Exception thrown: 'System.NullReferenceException' in Telerik.Windows.PersistenceFramework.dll Object reference not set to an instance of an object.

If have tried enabling AllowCrossVersion, but this then fails with:

Exception thrown: 'System.ArgumentOutOfRangeException' in mscorlib.dll

The only way I can get it to work is by following the recommendation in this post Here, it then loads as expected and without any errors:

PersistenceManager manager = new PersistenceManager();