Telerik Forums
UI for WPF Forum
or
Ask question
All Questions
Unanswered
Answered
25,593 questions
0 answers
24 views
Font Size for bullet list and numbered list is not consistent using default command to insert them in RadRichTextBox
When inserting bullet and number lists using the built in options for a telerik rad rich text box. The font size appears to be different.



I can correct it by changing font size to something else and changing back to what I want. I have default font size set to 12 and font family set to times new roman for the radRichTextBox. Any ideas?
RichTextBox
Patrick
Top achievements
Rank 1
 asked on 19 Sep 2025
1 answer
42 views
Memory Leak Issue with Telerik Controls (Specifically PdfViewer and GridView)

We are using WPF with Prism, MEF, and Telerik controls (PdfViewer and GridView, version 2017.2.503.45). Our application loads multiple tab views dynamically using the MVVM pattern. Each view contains multiple Telerik controls, and their data is bound from the ViewModel.

The issue we are facing is that when a tab is closed, the Telerik controls still hold references to the associated ViewModel, preventing the memory from being released.

We have tried the following approaches while closing the tab:

RadPdfViewer.DataContext = null;

RadPdfViewer = null;

RadGridView.DataContext = null;

RadGridView = null;

We also tried disposing of the Telerik controls, but the memory is still retained by them.

We have also defined the PdfViewer in XAML, but no PDF file was ever loaded into it from the UI. However, even in this case, the XAML view is not being disposed when the tab is closed, and the PdfViewer still holds a reference to the view.

 

Could you please help us identify how to properly release memory and ensure the controls? 

 

General Discussions
GridView
PDFViewer
Srinivasan
Top achievements
Rank 1
Iron
 answered on 19 Sep 2025
2 answers
26 views
WPF RadGridView GridViewDataColumn Checkbox disapearing

I have a question about my RadGridView. It contains checkboxes, and I noticed that if I don’t click directly on the checkbox but instead on the element surrounding it, the checkbox disappears and only becomes visible again once I click on another element.

RadGriddView

  AutoGenerateColumns="False"
  CanUserDeleteRows="False"
  CanUserFreezeColumns="False"
  CanUserReorderColumns="False"
  CanUserResizeColumns="False"
  CanUserSearch="False"
  CanUserSortColumns="False"
  GridLinesVisibility="Both"
  GroupRenderMode="Flat"
  ItemsSource="{Binding Items}"
  RowIndicatorVisibility="Collapsed"
  ShowGroupPanel="False"


<t:GridViewDataColumn
    Width="*"
    MinWidth="70"
    Header="Test"
    HeaderTextAlignment="Center">
    <t:GridViewColumn.CellTemplate>
        <DataTemplate>
            <CheckBox
                HorizontalAlignment="Center"
                FontSize="16"
                IsChecked="{Binding Test1}"
                IsHitTestVisible="True"
                Tag="{Binding}" />
        </DataTemplate>
    </t:GridViewColumn.CellTemplate>
</t:GridViewDataColumn>

 

 

When I use this t:GridViewCheckBoxColumn, the behavior is not as described above. However, I have to click three times on the checkbox, once before I can set the checkmark in the checkbox.

<t:GridViewCheckBoxColumn
    MinWidth="50"
    DataMemberBinding="{Binding Test1}"
    Header="Test1" />


 

GridView
Pascal
Top achievements
Rank 2
Iron
 answered on 18 Sep 2025
0 answers
17 views
Dynamic item count calculation in group (RadGridView)

Hello,

I came to interesting problem of calculating correct number of items that are grouped up. I have GridView that has grouped items, however in each group there is "special" item, that points to object of different type (but derived from the base type of the ItemsSource collection). This item should not be counted into overall item count of the group, as its function is to enable user to write down some notes for each group and does not contain any production data. The calculated count is then displayed in the group header text.

My idea was to create converter, that would take Group object and return the number. The converter itself would take group.ItemCount of group and then iterate in loop over the group.Items collection and substract 1 from the count if the item is of specified type. All of this is done so that when the user searches via the inbuilt search bar in GridView, the count is always correct.

Now the problem, the gridview does no load items of groups that are not expanded (except for the first one??) and as such the converter iterates over nothing (the group.Items collection is empty) and thus the count is displayed wrong (displayed number is group.ItemCount without any substraction). Any ideas how could i work around this? I would rather avoid calculating this in viewmodel as that would require tracking the search text and then manually filtering items in collection.

 

GridView
Christofer
Top achievements
Rank 1
 asked on 16 Sep 2025
2 answers
19 views
GridView
Hii,

Can someone tell me how I can remove this green line in the GridView, as well as the text shown above that is written in German? I haven’t found any way to do this, or I may have missed it in the documentation.
This green line is movable, but I have not yet found out why that is the case.

GridView
Styling
Pascal
Top achievements
Rank 2
Iron
 answered on 12 Sep 2025
1 answer
18 views
Have RadMaskedNumericInput only allow numbers greater than 0
I've seen code around that will limit RadMaskedNumericInput to be 0 or greater, but I need to exclude 0.
MaskedInput (Numeric, DateTime, Text, Currency)
Stenly
Telerik team
 answered on 10 Sep 2025
2 answers
17 views
Change color of selected/unselected in ToggleSwitchButton

Hello,

 

I'm trying to chanhe the color  of the ToggleSwitchButton.

For example; when selected it turns green, unselected is red.

 

I found this article: Styling apperance and handled as such.

This gave me 200+ lines of XAML, but I cannot easily identify what to change, pleasy some guidance.

 

I'm on 2025 Q3 for WPF


<LinearGradientBrush x:Key="ControlOuterBorder_Normal" EndPoint="0.5,1" StartPoint="0.5,0"><GradientStop Color="#FFA9BFD6"/><GradientStop Color="#FFCDDAEA" Offset="1"/></LinearGradientBrush><LinearGradientBrush x:Key="ControlBackground_Normal" EndPoint="0.5,1" StartPoint="0.5,0"><GradientStop Color="#FFFDFEFF" Offset="0"/><GradientStop Color="#FFE6F0FA" Offset="0.5"/><GradientStop Color="#FFDCE6F4" Offset="0.5"/><GradientStop Color="#FFDDE9F7" Offset="1"/></LinearGradientBrush><SolidColorBrush x:Key="ControlOuterBorder_MouseOver" Color="#FFB8D6FB"/><LinearGradientBrush x:Key="ControlBackground_MouseOver" EndPoint="0.5,1" StartPoint="0.5,0"><GradientStop Color="#FFFBFCFD" Offset="0"/><GradientStop Color="#FFF6F8FB" Offset="0.5"/><GradientStop Color="#FFEDF2F9" Offset="0.5"/><GradientStop Color="#FFE5EBF4" Offset="1"/></LinearGradientBrush><SolidColorBrush x:Key="ControlOuterBorder_Pressed" Color="#FFC0CBD9"/><LinearGradientBrush x:Key="ControlBackground_Pressed" EndPoint="0.5,1" StartPoint="0.5,0"><GradientStop Color="#FFC0CBD9" Offset="0"/><GradientStop Color="#FFE6EAEE" Offset="0.5"/></LinearGradientBrush><SolidColorBrush x:Key="ControlInnerBorder_Checked" Color="#00000000"/><LinearGradientBrush x:Key="ControlBackground_Checked" EndPoint="0.5,1" StartPoint="0.5,0"><GradientStop Color="#FFC0CBD9" Offset="0"/><GradientStop Color="#FFE6EAEE" Offset="0.5"/></LinearGradientBrush><Style x:Key="VATToggleSwitchButton" TargetType="{x:Type telerik:RadToggleSwitchButton}">
    <Setter Property="Padding" Value="4 0"/>
    <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
    <Setter Property="Foreground" Value="{StaticResource ControlForeground_Normal}"/>
    <Setter Property="FontSize" Value="12"/>
    <Setter Property="FontFamily" Value="Segoe UI"/>
    <Setter Property="VerticalContentAlignment" Value="Center"/>
    <Setter Property="HorizontalContentAlignment" Value="Left"/>
    <Setter Property="Background" Value="{StaticResource ToggleSwitchButton_TrackBackground}"/>
    <Setter Property="BorderBrush" Value="{StaticResource ControlOuterBorder_Normal}"/>
    <Setter Property="BorderThickness" Value="1"/>
    <Setter Property="Cursor" Value="Hand"/>
    <Setter Property="TrackHeight" Value="20"/>
    <Setter Property="ThumbHeight" Value="20"/>
    <Setter Property="ThumbWidth" Value="20"/>
    <Setter Property="CornerRadius" Value="2"/>
    <Setter Property="TrackWidth" Value="60"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type telerik:RadToggleSwitchButton}">
                <Grid>
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="Auto"/>
                        <ColumnDefinition Width="{Binding TrackWidth, RelativeSource={RelativeSource Mode=TemplatedParent}}"/>
                        <ColumnDefinition Width="Auto"/>
                    </Grid.ColumnDefinitions>
                    <ContentPresenter x:Name="UncheckedContent" ContentStringFormat="{TemplateBinding ContentStringFormat}" ContentTemplate="{TemplateBinding UncheckedContentTemplate}" Grid.Column="2" Content="{TemplateBinding UncheckedContent}" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" RecognizesAccessKey="True" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
                    <Grid Grid.Column="1" Height="{TemplateBinding TrackHeight}" SnapsToDevicePixels="True">
                        <Border x:Name="TrackBackground" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" CornerRadius="{TemplateBinding CornerRadius}" Opacity="0">
                            <Rectangle x:Name="TrackInnerBackground" Fill="{TemplateBinding Background}" RadiusX="{TemplateBinding CheckedTrackRadius}" RadiusY="{TemplateBinding CheckedTrackRadius}" Stroke="{StaticResource ToggleSwitchButton_TrackInnerBorder}" StrokeThickness="0"/>
                        </Border>
                        <Border x:Name="UncheckedTrackBackground" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" CornerRadius="{TemplateBinding CornerRadius}">
                            <Rectangle x:Name="UncheckedTrackInnerBackground" Fill="{StaticResource ToggleSwitchButton_TrackBackground_Unchecked}" RadiusX="{TemplateBinding UncheckedTrackRadius}" RadiusY="{TemplateBinding UncheckedTrackRadius}" Stroke="{StaticResource ToggleSwitchButton_TrackInnerBorder}" StrokeThickness="0"/>
                        </Border>
                        <Border x:Name="PART_Thumb" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" CornerRadius="2" HorizontalAlignment="Left" Height="{TemplateBinding ThumbHeight}" RenderTransformOrigin="0.5,0.5" Width="{TemplateBinding ThumbWidth}">
                            <Border.RenderTransform>
                                <TranslateTransform X="0" Y="0"/>
                            </Border.RenderTransform>
                            <Grid>
                                <Rectangle x:Name="ThumbInnerRectangle" Fill="{StaticResource ControlBackground_Checked}" Stroke="{StaticResource ControlInnerBorder_Checked}" StrokeThickness="1"/>
                                <Path Height="9" Stroke="{TemplateBinding Foreground}" Width="6"/>
                            </Grid>
                        </Border>
                    </Grid>
                    <ContentPresenter x:Name="CheckedContent" ContentStringFormat="{TemplateBinding ContentStringFormat}" ContentTemplate="{TemplateBinding CheckedContentTemplate}" Grid.Column="2" Content="{TemplateBinding CheckedContent}" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" RecognizesAccessKey="True" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
                </Grid>
                <ControlTemplate.Triggers>
                    <Trigger Property="IsChecked" Value="False">
                        <Setter Property="BorderBrush" TargetName="PART_Thumb" Value="{StaticResource ControlOuterBorder_Normal}"/>
                        <Setter Property="Fill" TargetName="ThumbInnerRectangle" Value="{StaticResource ControlBackground_Normal}"/>
                    </Trigger>
                    <Trigger Property="IsChecked" Value="True">
                        <Setter Property="Opacity" TargetName="TrackBackground" Value="1"/>
                        <Setter Property="Opacity" TargetName="UncheckedTrackBackground" Value="0"/>
                    </Trigger>
                    <Trigger Property="IsChecked" Value="{x:Null}">
                        <Setter Property="BorderBrush" TargetName="PART_Thumb" Value="{StaticResource ControlOuterBorder_Normal}"/>
                        <Setter Property="Fill" TargetName="ThumbInnerRectangle" Value="{StaticResource ControlBackground_Normal}"/>
                        <Setter Property="Opacity" TargetName="TrackBackground" Value="0"/>
                        <Setter Property="Opacity" TargetName="UncheckedTrackBackground" Value="1"/>
                    </Trigger>
                    <MultiTrigger>
                        <MultiTrigger.Conditions>
                            <Condition Property="IsKeyboardFocused" Value="True"/>
                            <Condition Property="IsEnabled" Value="True"/>
                        </MultiTrigger.Conditions>
                        <Setter Property="BorderBrush" TargetName="PART_Thumb" Value="{StaticResource ToggleSwitchButton_ThumbBorder_Focused}"/>
                    </MultiTrigger>
                    <Trigger Property="IsMouseOver" Value="True">
                        <Setter Property="BorderBrush" TargetName="PART_Thumb" Value="{StaticResource ControlOuterBorder_MouseOver}"/>
                        <Setter Property="Fill" TargetName="ThumbInnerRectangle" Value="{StaticResource ControlBackground_MouseOver}"/>
                    </Trigger>
                    <Trigger Property="IsPressed" Value="True">
                        <Setter Property="BorderBrush" TargetName="PART_Thumb" Value="{StaticResource ControlOuterBorder_Pressed}"/>
                        <Setter Property="Fill" TargetName="ThumbInnerRectangle" Value="{StaticResource ControlBackground_Pressed}"/>
                    </Trigger>
                    <Trigger Property="IsEnabled" Value="False">
                        <Setter Property="Opacity" TargetName="UncheckedContent" Value="0.3"/>
                        <Setter Property="Opacity" TargetName="CheckedContent" Value="0.3"/>
                        <Setter Property="Opacity" TargetName="PART_Thumb" Value="0.3"/>
                        <Setter Property="BorderBrush" TargetName="PART_Thumb" Value="{StaticResource ToggleSwitchButton_TrackBorder_Disabled}"/>
                        <Setter Property="Stroke" TargetName="ThumbInnerRectangle" Value="{StaticResource ToggleSwitchButton_ThumbBackground_Disabled}"/>
                        <Setter Property="Fill" TargetName="ThumbInnerRectangle" Value="{StaticResource ToggleSwitchButton_ThumbBackground_Disabled}"/>
                        <Setter Property="BorderBrush" TargetName="TrackBackground" Value="{StaticResource ToggleSwitchButton_TrackBorder_Disabled}"/>
                        <Setter Property="Stroke" TargetName="TrackInnerBackground" Value="{StaticResource ToggleSwitchButton_ThumbBackground_Disabled}"/>
                        <Setter Property="Fill" TargetName="TrackInnerBackground" Value="{StaticResource ToggleSwitchButton_TrackBackground_Unchecked}"/>
                        <Setter Property="BorderBrush" TargetName="UncheckedTrackBackground" Value="{StaticResource ToggleSwitchButton_TrackBorder_Disabled}"/>
                        <Setter Property="Stroke" TargetName="UncheckedTrackInnerBackground" Value="{StaticResource ToggleSwitchButton_ThumbBackground_Disabled}"/>
                        <Setter Property="Fill" TargetName="UncheckedTrackInnerBackground" Value="{StaticResource ToggleSwitchButton_TrackBackground_Unchecked}"/>
                    </Trigger>
                    <MultiDataTrigger>
                        <MultiDataTrigger.Conditions>
                            <Condition Binding="{Binding IsChecked, RelativeSource={RelativeSource Mode=Self}}" Value="True"/>
                            <Condition Value="True">
                                <Condition.Binding>
                                    <MultiBinding Converter="{StaticResource MultiBindingBooleanOrConverter}" Mode="OneWay">
                                        <Binding ConverterParameter="Left" Converter="{StaticResource EnumToBooleanConverter}" Mode="OneWay" Path="ContentPosition" RelativeSource="{RelativeSource Mode=Self}"/>
                                        <Binding ConverterParameter="Right" Converter="{StaticResource EnumToBooleanConverter}" Mode="OneWay" Path="ContentPosition" RelativeSource="{RelativeSource Mode=Self}"/>
                                    </MultiBinding>
                                </Condition.Binding>
                            </Condition>
                        </MultiDataTrigger.Conditions>
                        <Setter Property="Visibility" TargetName="UncheckedContent" Value="Hidden"/>
                    </MultiDataTrigger>
                    <MultiDataTrigger>
                        <MultiDataTrigger.Conditions>
                            <Condition Binding="{Binding IsChecked, RelativeSource={RelativeSource Mode=Self}}" Value="False"/>
                            <Condition Value="True">
                                <Condition.Binding>
                                    <MultiBinding Converter="{StaticResource MultiBindingBooleanOrConverter}" Mode="OneWay">
                                        <Binding ConverterParameter="Left" Converter="{StaticResource EnumToBooleanConverter}" Mode="OneWay" Path="ContentPosition" RelativeSource="{RelativeSource Mode=Self}"/>
                                        <Binding ConverterParameter="Right" Converter="{StaticResource EnumToBooleanConverter}" Mode="OneWay" Path="ContentPosition" RelativeSource="{RelativeSource Mode=Self}"/>
                                    </MultiBinding>
                                </Condition.Binding>
                            </Condition>
                        </MultiDataTrigger.Conditions>
                        <Setter Property="Visibility" TargetName="CheckedContent" Value="Hidden"/>
                    </MultiDataTrigger>
                    <MultiDataTrigger>
                        <MultiDataTrigger.Conditions>
                            <Condition Binding="{Binding IsChecked, RelativeSource={RelativeSource Mode=Self}}" Value="{x:Null}"/>
                            <Condition Value="True">
                                <Condition.Binding>
                                    <MultiBinding Converter="{StaticResource MultiBindingBooleanOrConverter}" Mode="OneWay">
                                        <Binding ConverterParameter="Left" Converter="{StaticResource EnumToBooleanConverter}" Mode="OneWay" Path="ContentPosition" RelativeSource="{RelativeSource Mode=Self}"/>
                                        <Binding ConverterParameter="Right" Converter="{StaticResource EnumToBooleanConverter}" Mode="OneWay" Path="ContentPosition" RelativeSource="{RelativeSource Mode=Self}"/>
                                    </MultiBinding>
                                </Condition.Binding>
                            </Condition>
                        </MultiDataTrigger.Conditions>
                        <Setter Property="Visibility" TargetName="CheckedContent" Value="Hidden"/>
                        <Setter Property="Visibility" TargetName="UncheckedContent" Value="Hidden"/>
                    </MultiDataTrigger>
                    <Trigger Property="ContentPosition" Value="Left">
                        <Setter Property="Grid.Column" TargetName="CheckedContent" Value="0"/>
                        <Setter Property="Grid.Column" TargetName="UncheckedContent" Value="0"/>
                        <Setter Property="HorizontalContentAlignment" Value="Right"/>
                    </Trigger>
                    <Trigger Property="ContentPosition" Value="Both">
                        <Setter Property="Grid.Column" TargetName="UncheckedContent" Value="0"/>
                        <Setter Property="Grid.Column" TargetName="CheckedContent" Value="2"/>
                        <Setter Property="HorizontalAlignment" TargetName="CheckedContent" Value="Right"/>
                    </Trigger>
                </ControlTemplate.Triggers>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
    <Setter Property="animation:AnimationManager.AnimationSelector">
        <Setter.Value>
            <animation:AnimationSelector>
                <animation:AnimationGroup AnimationName="CheckedAnimation">
                    <animation:MoveAnimation Duration="0:0:0.4" TargetElementName="PART_Thumb">
                        <animation:MoveAnimation.Easing>
                            <QuadraticEase EasingMode="EaseInOut"/>
                        </animation:MoveAnimation.Easing>
                    </animation:MoveAnimation>
                    <animation:FadeAnimation Direction="Out" Duration="0:0:0.4" TargetElementName="UncheckedTrackBackground"/>
                    <animation:FadeAnimation Direction="In" Duration="0:0:0.4" TargetElementName="TrackBackground"/>
                </animation:AnimationGroup>
                <animation:AnimationGroup AnimationName="UncheckedAnimation">
                    <animation:MoveAnimation Duration="0:0:0.4" TargetElementName="PART_Thumb">
                        <animation:MoveAnimation.Easing>
                            <QuadraticEase EasingMode="EaseInOut"/>
                        </animation:MoveAnimation.Easing>
                    </animation:MoveAnimation>
                    <animation:FadeAnimation Direction="Out" Duration="0:0:0.4" TargetElementName="TrackBackground"/>
                    <animation:FadeAnimation Direction="In" Duration="0:0:0.4" TargetElementName="UncheckedTrackBackground"/>
                </animation:AnimationGroup>
                <animation:AnimationGroup AnimationName="IsThreeStateUncheckedAnimation">
                    <animation:MoveAnimation Duration="0:0:0.4" TargetElementName="PART_Thumb">
                        <animation:MoveAnimation.Easing>
                            <QuadraticEase EasingMode="EaseInOut"/>
                        </animation:MoveAnimation.Easing>
                    </animation:MoveAnimation>
                </animation:AnimationGroup>
                <animation:AnimationGroup AnimationName="IndeterminateAnimation">
                    <animation:MoveAnimation Duration="0:0:0.4" TargetElementName="PART_Thumb">
                        <animation:MoveAnimation.Easing>
                            <QuadraticEase EasingMode="EaseInOut"/>
                        </animation:MoveAnimation.Easing>
                    </animation:MoveAnimation>
                    <animation:FadeAnimation Direction="Out" Duration="0:0:0.4" TargetElementName="TrackBackground"/>
                    <animation:FadeAnimation Direction="In" Duration="0:0:0.4" TargetElementName="UncheckedTrackBackground"/>
                </animation:AnimationGroup>
            </animation:AnimationSelector>
        </Setter.Value>
    </Setter>
 
Jeroen

Styling
Jeroen
Top achievements
Rank 1
Iron
Iron
 answered on 08 Sep 2025
0 answers
20 views
how to compile WPF project with environment variables but authentication failes

Hello. I have recently needed to repave my dev box. I got my latest code, setup two environment variables (username and password with the once only visible API key), as well as still have the nuget.config file and adding the proper telerik nuget server to the nuget manager. Unfortunately, I still have something wrong because when I compile, I get asked for my username and password what looks like it's the telerik nuget calls. Please help, this is driving me crazy. I'm just not able to figure this out.

 

I have ensured the nugetconfig is using the right\same environment variables as I have setup in the system environment. And the values are correct. Please help.

Licensing
Peter
Top achievements
Rank 1
Iron
Iron
 asked on 05 Sep 2025
1 answer
27 views
RadGlyph with Font Awesome Duotone font

Can RadGlyph work with Font Awesome's Duotone font? For example, we want to render: https://fontawesome.com/icons/house?f=duotone&s=solid

I've tried various things, including:

                <Grid>
                    <!-- Secondary (back) layer -->
                    <telerik:RadGlyph
                        Font="fads"
                        FontSize="40"
                        Glyph="&#x10F015;"
                        Foreground="Red" />
                    <!-- Primary (front) layer -->
                    <telerik:RadGlyph
                        Font="fads"
                        FontSize="40"
                        Glyph="&#xF015;"
                        Foreground="Blue" />
                </Grid>

This just renders an all blue house.

Reversing the elements:

            <telerik:RadTabItem.Content>
                <Grid>
                    <!-- Primary (front) layer -->
                    <telerik:RadGlyph
                        Font="fads"
                        FontSize="40"
                        Glyph="&#xF015;"
                        Foreground="Blue" />
                    <!-- Secondary (back) layer -->
                    <telerik:RadGlyph
                        Font="fads"
                        FontSize="40"
                        Glyph="&#x10F015;"
                        Foreground="Red" />
                </Grid>

I'm using the same technique I use to register regular Font Awesome fonts and have verified the codepoints exist:

        var solidDuotoneFontFilePath = Path.Combine(directory, "Resources/Fonts", "Font Awesome 7 Duotone-Solid-900.otf");
        var solidDuotoneFontUri = new Uri(solidDuotoneFontFilePath, UriKind.Absolute);
        var solidDuotoneFontFamily = new FontFamily(solidDuotoneFontUri, "./#Font Awesome 7 Duotone Solid");
        RadGlyph.RegisterFont(solidDuotoneFontFamily, "fads");

        bool HasChar(FontFamily fam, int codePoint)
        {
            var tf = new Typeface(fam, FontStyles.Normal, FontWeights.Normal, FontStretches.Normal);
            if (!tf.TryGetGlyphTypeface(out var gtf)) return false;
            return gtf.CharacterToGlyphMap.ContainsKey(codePoint);
        }

        Debug.WriteLine($"Primary F015 present: {HasChar(solidDuotoneFontFamily, 0xF015)}");
        Debug.WriteLine($"Secondary 10F015 present: {HasChar(solidDuotoneFontFamily, 0x10F015)}");

General Discussions
Martin Ivanov
Telerik team
 answered on 02 Sep 2025
1 answer
28 views
Using Telerik Export the data grid value into excel.
Summarize the problem:  In the WPF grid, data is displayed using value converters (IValueConverter). When exporting with TelerikDataGrid.Export(), Telerik uses the raw bound values instead of the converted display values. This causes a mismatch: what you see in the grid is different from what appears in the exported Excel file.

Tried Method: 
Identified the root cause of the issue, the grid shows converted values (via IValueConverter). 
But after export uses raw bound values, will exported.  I need to export the Grid displayed value into the Excel.

M_DataGrid_ElementExporting

private void M_DataGrid_ElementExporting(object sender, Telerik.Windows.Controls.GridViewElementExportingEventArgs e)
        {
            if (e.Element == Telerik.Windows.Controls.ExportElement.Cell)
            {
                var cellExportingArgs = e as GridViewCellExportingEventArgs;

                if (e.Context is Telerik.Windows.Controls.GridViewDataColumn dataColumn)
                {
                    var col = e.Context as Telerik.Windows.Controls.GridViewDataColumn;
                    if (col != null && col.UniqueName == "MomentOfInertia")
                    {

                        var binding = dataColumn.DataMemberBinding;
                        var propertyValue = TelerikDataVis_Doc.GetPropertyValue(e.DataContext, binding.Path.Path);
                        if (binding != null)
                        {
                            object rawValue = e.Value;

                            if (binding.Converter != null)
                            {
                                rawValue = binding.Converter.Convert(
                                    propertyValue,
                                    typeof(string),
                                    binding.ConverterParameter,
                                    System.Globalization.CultureInfo.CurrentCulture);
                            }

                            if (!string.IsNullOrEmpty(binding.StringFormat))
                            {
                                e.Value = string.Format(binding.StringFormat, rawValue);
                            }
                            else
                            {
                                e.Value = rawValue?.ToString();
                            }
                        }
                    }
                }
            }
        }
GridView
Martin Ivanov
Telerik team
 answered on 02 Sep 2025
Narrow your results
Done
Selected tags
Tags
GridView
General Discussions
Chart
RichTextBox
Docking
ScheduleView
ChartView
TreeView
Diagram
Map
ComboBox
TreeListView
Window
RibbonView and RibbonWindow
PropertyGrid
DragAndDrop
TabControl
TileView
Carousel
DataForm
PDFViewer
MaskedInput (Numeric, DateTime, Text, Currency)
AutoCompleteBox
DatePicker
Buttons
ListBox
GanttView
PivotGrid
Spreadsheet
Gauges
NumericUpDown
PanelBar
DateTimePicker
DataFilter
Menu
ContextMenu
TimeLine
Calendar
Installer and Visual Studio Extensions
ImageEditor
BusyIndicator
Expander
Slider
TileList
PersistenceFramework
DataPager
Styling
TimeBar
OutlookBar
TransitionControl
Book
FileDialogs
ToolBar
ColorPicker
TimePicker
SyntaxEditor
MultiColumnComboBox
VirtualGrid
Wizard
ExpressionEditor
NavigationView (Hamburger Menu)
DesktopAlert
WatermarkTextBox
BarCode
SpellChecker
DataServiceDataSource
EntityFrameworkDataSource
RadialMenu
ChartView3D
Data Virtualization
BreadCrumb
ProgressBar
Sparkline
LayoutControl
TabbedWindow
ToolTip
CloudUpload
ColorEditor
TreeMap and PivotMap
EntityFrameworkCoreDataSource (.Net Core)
HeatMap
Chat (Conversational UI)
VirtualizingWrapPanel
Calculator
NotifyIcon
TaskBoard
TimeSpanPicker
BulletGraph
Licensing
WebCam
CardView
DataBar
FilePathPicker
PasswordBox
Rating
SplashScreen
Accessibility
Callout
CollectionNavigator
Localization
AutoSuggestBox
VirtualKeyboard
HighlightTextBlock
Security
TouchManager
StepProgressBar
Badge
OfficeNavigationBar
ExpressionParser
CircularProgressBar
SvgImage
PipsPager
SlideView
AI Coding Assistant
+? more
Top users last month
Rob
Top achievements
Rank 3
Bronze
Iron
Iron
Sergii
Top achievements
Rank 1
Iron
Iron
Dedalus
Top achievements
Rank 1
Iron
Iron
Lan
Top achievements
Rank 1
Iron
Doug
Top achievements
Rank 1
Want to show your ninja superpower to fellow developers?
Learn how
1 2
3
4 5
Top users last month
Rob
Top achievements
Rank 3
Bronze
Iron
Iron
Sergii
Top achievements
Rank 1
Iron
Iron
Dedalus
Top achievements
Rank 1
Iron
Iron
Lan
Top achievements
Rank 1
Iron
Doug
Top achievements
Rank 1
Want to show your ninja superpower to fellow developers?
Learn how
Want to show your ninja superpower to fellow developers?
Learn how