Hello Telerik,

I'm using a RadCartesianChart in WPF allowing a complete customization of the chart.

        <chart:RadCartesianChart x:Name="BarChart"   Visibility="{Binding VisibilityBars, Mode=OneTime}" Grid.ColumnSpan="2">
            <telerik:RadCartesianChart.SmartLabelsStrategy>
                <telerik:ChartSmartLabelsStrategy />
            </telerik:RadCartesianChart.SmartLabelsStrategy>

            <!--Series-->
            <telerik:RadCartesianChart.SeriesProvider>
                <telerik:ChartSeriesProvider Source="{Binding Series}"   >
                    <telerik:ChartSeriesDescriptor ItemsSourcePath="DisplayValues"  TypePath="ShapeType" >
                        <telerik:ChartSeriesDescriptor.TypeConverter>
                            <conv:ShapeTypeToSeriesTypeConverter ChartType="Bar"  />
                        </telerik:ChartSeriesDescriptor.TypeConverter>
                    </telerik:ChartSeriesDescriptor> 
                </telerik:ChartSeriesProvider>
            </telerik:RadCartesianChart.SeriesProvider>


            <!--Axes-->
            <chart:RadCartesianChart.HorizontalAxis>
                <chartView:CategoricalAxis x:Name="horizontalAxis"  
									      Title="{Binding HorizontalAxisTitle}"  
                                          />
            </chart:RadCartesianChart.HorizontalAxis>

            <chart:RadCartesianChart.VerticalAxis>
                <chartView:LinearAxis x:Name="verticalAxis" 
									      Title="{Binding VerticalAxisTitle}"  
                                          MajorStep="{Binding VerticalAxisMajorStep}" 
									      Minimum="{Binding VerticalAxisMinimum}" 
                                          Maximum="{Binding VerticalAxisMaximum}" 
									      HorizontalLocation="Left" />
            </chart:RadCartesianChart.VerticalAxis>

            <chart:RadCartesianChart.Grid>
                <chartView:CartesianChartGrid MajorLinesVisibility="XY" />
            </chart:RadCartesianChart.Grid>
        </chart:RadCartesianChart>

The chart allows the possibility to custom the series for the PointType and the PointShape. I'm using a ShapeTypeToSeriesTypeConverter class, as below:

Public Class ShapeTypeToSeriesTypeConverter
        Implements IValueConverter
        Public Property ChartType As String


        Public Function Convert(value As Object, targetType As Type, parameter As Object, culture As CultureInfo) As Object Implements IValueConverter.Convert

            If value Is Nothing OrElse TypeOf (value) IsNot ChartSerieModel.ShapeTypes Then
                Return Nothing
            End If

            Dim ShapeType As ChartSerieModel.ShapeTypes = CType(value, ChartSerieModel.ShapeTypes)
            Select Case ChartType
                Case "Radar"
                    Select Case ShapeType
                        Case ChartSerieModel.ShapeTypes.None
                            Return GetType(RadarPointSeries)

                        Case ChartSerieModel.ShapeTypes.Line, ChartSerieModel.ShapeTypes.DashedLine
                            Return GetType(RadarLineSeries)

                        Case ChartSerieModel.ShapeTypes.Area
                            Return GetType(RadarAreaSeries)

                        Case Else
                            Return Nothing
                    End Select
                Case "Scatter"
                    Select Case ShapeType
                        Case ChartSerieModel.ShapeTypes.None
                            Return GetType(ScatterPointSeries)

                        Case ChartSerieModel.ShapeTypes.Line, ChartSerieModel.ShapeTypes.DashedLine
                            Return GetType(ScatterLineSeries)

                        Case ChartSerieModel.ShapeTypes.Area
                            Return GetType(ScatterAreaSeries)
                        Case Else
                            Return Nothing
                    End Select

                Case Else
                    Select Case ShapeType
                        Case ChartSerieModel.ShapeTypes.None
                            Return GetType(PointSeries)

                        Case ChartSerieModel.ShapeTypes.Line, ChartSerieModel.ShapeTypes.DashedLine
                            Return GetType(StepLineSeries)

                        Case ChartSerieModel.ShapeTypes.Area
                            Return GetType(BarSeries)
                        Case Else
                            Return Nothing
                    End Select
            End Select
        End Function

        Public Function ConvertBack(value As Object, targetType As Type, parameter As Object, culture As CultureInfo) As Object Implements IValueConverter.ConvertBack
            Throw New NotImplementedException()
        End Function
    End Class

The problem is on the Else case (BarChart) when I select None shape. I tried with PointSeries and LineSeries because this is the result I want but as you can see in the attached file "none shape.png", the full green serie is hidden.

Excepected result:

• PointSeries: only the points should be visible, no link
• LineSeries: the points should be visible and they should be linked by a direct line

Do you know how can I link the points using a direct line (and not the like the StepLineSeries)?

Attached files (here):

• shape choice.png: example of shapes choice
• line shape.png: example when the Line shape is selected, and the green serie is correctly displayed
  

Many thanks.

Valentin M.

Hello, 

I created a new template for the RadDateTimePicker because I overrided the Clock Part.

As part of the changes I added a Tooltip which shows the date time if not null. In the Watermark control part of the template I show the SelectedValue property that is bound to the ViewModel - TwoWayBinding. The string format of the DateTime is full date: dd/MM/yyyy with full time: HH:mm:ss. So I see the parsed Text on the control. 

I can't find an easy way to show the tooltip in the same format as the display date. I can't set the Tooltio content to RelativeSource Path=SelectedValue because it shows the DateTime in orginal format.

I also can't show in the Tooltio the DisplatText because even if binding OneWay, the date is flickering in every change like binding is wrong.

In the Style of the RadDateTimePicker I have access to SelectedValue, SelectedDateTime,SelectedTime properties but it seems that you convert the Date Time to a text inside the control code because it doesn't work on the Tooltip.

Do you have any solution for that?

Hi,

I have a window that has a RadPropertyGrid and UserControl that contains five buttons. I want to make the screen full while clicking on maximize button. Now as I have fixed height and width. Maximize button is not working. Can you please help me out.

<Window x:Class="WPF.Views.NoteEdit"
        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:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
        xmlns:customcontrol="clr-namespace:WPF.CustomControl"
        xmlns:local="clr-namespace:WPF.Views"
        mc:Ignorable="d"
        x:Name="vwNoteEditWindow"
        Title="NoteEdit" Height="680" Width="750">
    <Grid Height="564" VerticalAlignment="Top" >
        <Grid HorizontalAlignment="Center">
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="*" />
                <ColumnDefinition Width="Auto"/>
            </Grid.ColumnDefinitions>
            <Grid.RowDefinitions>
                <RowDefinition Height="Auto"/>
                <RowDefinition Height="*"/>
            </Grid.RowDefinitions>
            <telerik:RadLayoutControl
                Name="PropertyGridContainer"
                Margin="5"
                VerticalAlignment="Top"
                HorizontalAlignment="Center"              
                BorderThickness="0"
                Orientation="Vertical">
            </telerik:RadLayoutControl>
        </Grid>

        <Grid VerticalAlignment="Bottom">
            <customcontrol:RadPropertyWindowButtons x:Name="ucPropertyButtons" Height="44" VerticalAlignment="Top" HorizontalAlignment="Center" Loaded="RadPropertyWindowButtons_Loaded" CustomCancelClick="btn_Cancel_Click" CustomExitClick="btn_Exit_Click" />
        </Grid>
    </Grid>
</Window>

User control :

The problem I'm seeing is that text does scale up or down, just sometimes it seems to jump to a large size - is this a feature of RadDiagram? I note that if I set the scale back to 100%, the text is now much bigger. I've attached pictures to demonstrate.

now zoom out:

the text is bigger, to be readable? Now go back to 100%:

the text is now huge.

I have this property

private double? _netFreqValue;
public double? NetFreqValue
{
    get => _netFreqValue;
    set
    { 
        if(_netFreqValue == value) return;
        _netFreqValue = value;
        this.OnPropertyChanged();
    }
}

and im trying to set the EmptyContent property to nothing(empty string) when the value is null

this works fine

<RadMaskedNumericInput
    Mask = "#4.3"
    AllowInvalidValues = "False"
    EmptyContent = ""
    UpdateValueEvent = "LostFocus"
    Value = "{Binding NetFreqValue, Mode=TwoWay, UpdateSourceTrigger = PropertyChanged}" />

but this does not

<RadMaskedNumericInput

    Mask = "#4.3"
    AllowInvalidValues = "False"
    EmptyContent = ""
    UpdateValueEvent = "LostFocus">
    <RadMaskedNumericInput.Value>
        <Binding Path=""NetFreqValue"
                         UpdateSourceTrigger="PropertyChanged"
                          Mode="TwoWay">
            <Binding.ValidationRules>
              //some validations
             </Binding.ValidationRules>
        </Binding>
      </RadMaskedNumericInput.Value>
</RadMaskedNumericInput>

There are images for the ribbon for open, save, etc, and I was wondering if I'm allowed to use them...

I"m following example for context menu in grid view:

https://docs.telerik.com/devtools/wpf/controls/radcontextmenu/how-to/use-radcontextmenu-with-radgridview

Sample grid view has context menu on clicking record: Add/Edit/Delete.

Need advice how to create dynamic context menu on-the-fly based on selected row, using parent-child nodes approach like:

- Notify Option1

      - client 1

      - client 2

      - client <...> (items number is variable based on selected row)

- Notify Option2

      - department1

      - department2

      - department<...> (variable)

- Delete

I'm wonder if it is possible to populate menu items in Click_Row() event instead of static init process this.InitializeRowContextMenuItems();

Another approach would be creating separate dialog inside Click_Row() listing all items for each category "Notify Option1", "Notify Option2". But dynamic menu context looks more clean approach.

Hi,

I would like to highlight a cell (C1) in yellow if the value in another cell (B1) is true.

I have tried typing in B1 or =B1 in the box in the screenshot below "Format cell values where this formula is true:" but C1 is always yellow.

Can someone point me in the right direction?

Regards

Anthony

Hello,

I followed your tutorial to use the RadDataPager and RadGridView. The pager is bound to the view model source items and the Rad Grid View is bound to the RadDataPager. See the following example:

<Grid x:Name="LayoutRoot" 
        Background="White">     
    <Grid.RowDefinitions> 
        <RowDefinition /> 
        <RowDefinition Height="Auto" /> 
    </Grid.RowDefinitions> 
    <telerik:RadGridView x:Name="radGridView" 
                         ItemsSource="{Binding PagedSource, ElementName=radDataPager}" 
                         AutoGenerateColumns="False"> 
        <telerik:RadGridView.Columns> 
            <telerik:GridViewDataColumn DataMemberBinding="{Binding Name}" /> 
            <telerik:GridViewDataColumn DataMemberBinding="{Binding CompanyName}" /> 
            <telerik:GridViewDataColumn DataMemberBinding="{Binding Title}" /> 
        </telerik:RadGridView.Columns> 
    </telerik:RadGridView> 
    <telerik:RadDataPager x:Name="radDataPager" 
                          Source="{Binding Employees}" 
                          PageSize="5" /> 
</Grid> 

I can see that the pager splits the items into pages of 50 items (I have 10 pages) but the RadGridView shows all the items. Only if I force the reload of the xaml (with Hot Reload), the RadGridView is updated according to the pager items in the current page, until that point all the items are shown.

What am I doing wrong?

Hey, I have using your control RadMenuGroupItem with ItemsSource that is Observable Collection of string. I noticed that for name with underscore in them, the underscore is removed from the name. Here an example:

telerik_123 will turn to telerik123

I use the same ItemsSource in a RadComboBox and in there I don't have this issue.

What can I do to solve this?

Sincerely, Omer