Questions on UI for WPF Forum

1 answer

1.2K+ views

Remove unused .dll from WPF .net 5 Project

When using Telerik with .net 5 the output includes all the Telerik .dlls even the ones that are not used. The output from a project containing an empty window is over 100mb.

With .net framework there was a way to configure the project and only include the referenced assemblies. Is there a way to do the same for a .net 5 project?

Installer and Visual Studio Extensions

answered on 29 Sep 2021

1 answer

140 views

The date part of RadDatePicker is still, i can not choose the right date.

I edited the template of RadDatePicker, when i click the left and right button to change the month, the month component of date number is totally still, won't change by different month.

I found if DayButtonStyle part is deleted, then nothing wrong. But I need to change DayButtonStyle, is there any solution?

                    <telerik:RadDatePicker Style="{DynamicResource RadDatePickerStyle1}" IsEnabled="True" IsReadOnly="False" Margin="2 0"/>

<Setter Property="DayButtonStyle">
                            <Setter.Value>
                                <Style TargetType="{x:Type Calendar:CalendarButton}">
                                    <Setter Property="FontFamily" Value="Microsoft YaHei UI"/>
                                    <Setter Property="FontSize" Value="12"/>
                                    <Setter Property="Foreground" Value="{DynamicResource BasicFont}"/>
                                    <Setter Property="BorderThickness" Value="1"/>
                                    <Setter Property="HorizontalContentAlignment" Value="Center"/>
                                    <Setter Property="VerticalContentAlignment" Value="Center"/>
                                    <Setter Property="MinWidth" Value="24"/>
                                    <Setter Property="MinHeight" Value="24"/>
                                    <Setter Property="FontWeight" Value="Normal"/>
                                    <Setter Property="FocusVisualStyle" Value="{x:Null}"/>
                                    <Setter Property="Template">
                                        <Setter.Value>
                                            <ControlTemplate TargetType="{x:Type Calendar:CalendarButton}">
                                                <Grid x:Name="LayoutRoot" Background="Transparent">
                                                    <Border x:Name="BorderVisual" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" CornerRadius="10" Margin="1"/>
                                                    <ContentControl x:Name="Content" ContentTemplate="{TemplateBinding ContentTemplate}" Content="{TemplateBinding Content}" ContentStringFormat="{TemplateBinding ContentStringFormat}" Foreground="{TemplateBinding Foreground}" FontSize="{TemplateBinding FontSize}" FontFamily="{TemplateBinding FontFamily}" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" IsTabStop="False" Margin="{TemplateBinding Padding}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
                                                </Grid>
                                                <ControlTemplate.Triggers>
                                                    <Trigger Property="IsFromCurrentView" Value="False">
                                                        <Setter Property="Opacity" TargetName="Content" Value="0.6"/>
                                                    </Trigger>
                                                    <Trigger Property="IsKeyboardFocusWithin" Value="True">
                                                        <Setter Property="BorderBrush" TargetName="BorderVisual" Value="{DynamicResource BrightColor}"/>
                                                        <Setter Property="BorderThickness" TargetName="BorderVisual" Value="1"/>
                                                    </Trigger>
                                                    <Trigger Property="IsMouseOver" Value="True">
                                                        <Setter Property="Background" TargetName="BorderVisual" Value="{DynamicResource BrightColor}"/>
                                                        <Setter Property="BorderBrush" TargetName="BorderVisual" Value="{DynamicResource BrightColor}"/>
                                                        <Setter Property="Foreground" Value="White"/>
                                                    </Trigger>
                                                    <Trigger Property="IsSelected" Value="True">
                                                        <Setter Property="Background" TargetName="BorderVisual" Value="{DynamicResource BrightColor}"/>
                                                        <Setter Property="BorderBrush" TargetName="BorderVisual" Value="{DynamicResource BrightColor}"/>
                                                        <Setter Property="Foreground" Value="White"/>
                                                    </Trigger>
                                                    <Trigger Property="IsEnabled" Value="False">
                                                        <Setter Property="Opacity" TargetName="Content" Value="0.6"/>
                                                    </Trigger>
                                                    <Trigger Property="ButtonType" Value="TodayDate">
                                                        <Setter Property="BorderBrush" TargetName="BorderVisual" Value="Gray"/>
                                                        <Setter Property="Foreground" Value="{DynamicResource BasicFont}"/>
                                                        <Setter Property="FontWeight" TargetName="Content" Value="Bold"/>
                                                    </Trigger>
                                                    <MultiTrigger>
                                                        <MultiTrigger.Conditions>
                                                            <Condition Property="IsEnabled" Value="False"/>
                                                            <Condition Property="IsMouseOver" Value="True"/>
                                                        </MultiTrigger.Conditions>
                                                        <Setter Property="Foreground" TargetName="Content" Value="White"/>
                                                    </MultiTrigger>
                                                    <MultiTrigger>
                                                        <MultiTrigger.Conditions>
                                                            <Condition Property="IsFromCurrentView" Value="False"/>
                                                            <Condition Property="IsMouseOver" Value="True"/>
                                                        </MultiTrigger.Conditions>
                                                        <Setter Property="Opacity" TargetName="Content" Value="1"/>
                                                    </MultiTrigger>
                                                    <MultiTrigger>
                                                        <MultiTrigger.Conditions>
                                                            <Condition Property="ButtonType" Value="TodayDate"/>
                                                            <Condition Property="IsMouseOver" Value="True"/>
                                                        </MultiTrigger.Conditions>
                                                        <Setter Property="Foreground" TargetName="Content" Value="White"/>
                                                        <Setter Property="Background" TargetName="BorderVisual" Value="{DynamicResource BrightColor}"/>
                                                        <Setter Property="BorderBrush" TargetName="BorderVisual" Value="{DynamicResource BrightColor}"/>
                                                    </MultiTrigger>
                                                    <MultiTrigger>
                                                        <MultiTrigger.Conditions>
                                                            <Condition Property="ButtonType" Value="TodayDate"/>
                                                            <Condition Property="IsSelected" Value="True"/>
                                                        </MultiTrigger.Conditions>
                                                        <Setter Property="Background" TargetName="BorderVisual" Value="{DynamicResource BrightColor}"/>
                                                        <Setter Property="BorderBrush" TargetName="BorderVisual" Value="{DynamicResource BrightColor}"/>
                                                        <Setter Property="Foreground" Value="White"/>
                                                    </MultiTrigger>
                                                    <Trigger Property="ButtonType" Value="WeekNumber">
                                                        <Setter Property="Foreground" TargetName="Content" Value="{DynamicResource BasicFont}"/>
                                                        <Setter Property="Opacity" TargetName="Content" Value="0.2"/>
                                                        <Setter Property="Visibility" TargetName="BorderVisual" Value="Collapsed"/>
                                                    </Trigger>
                                                    <Trigger Property="ButtonType" Value="WeekName">
                                                        <Setter Property="Foreground" TargetName="Content" Value="{DynamicResource BrightColor}"/>
                                                        <Setter Property="Visibility" TargetName="BorderVisual" Value="Collapsed"/>
                                                    </Trigger>
                                                </ControlTemplate.Triggers>
                                            </ControlTemplate>
                                        </Setter.Value>
                                    </Setter>
                                </Style>
                            </Setter.Value>
                        </Setter>

I can't pick the rignt date. T - T

DatePicker

answered on 28 Sep 2021

1 answer

464 views

Stop collapse after sub menu selection

Hi,

Is there a way to stop the automatic collapse of the sub item menu when a sub item is selected. I would like to the have the sub menu still expanded after an item is selected.

Thanks

Tony

NavigationView (Hamburger Menu)

answered on 28 Sep 2021

0 answers

149 views

Column groups + sorting in RadGridView = bad performance

Hello,

Some of the types I use for the columns of my RadGridView are implementing IComparable so that clicking on these columns sorts them by value.
I also wanted to add column groups to that RadGridView but I noticed there is a severe performance drawback to this: on a sample of 4 rows and ~100 columns, clicking on a column to sort it takes way more time when I have column groups (~0.5s without, 2.5s-4s with).

With a slightly larger sample (6 rows and ~200 columns), it blows up to really unacceptable times (35s-55s)!

For the record, I create columns and column groups dynamically at runtime, the rows are virtualized, and some rows don't have a value for some columns (thus raising System.Windows.Data errors when we load these cells).

Am I doing something wrong?

Thanks in avance!

GridView

updated question on 28 Sep 2021

1 answer

266 views

RadListBox and Select All performance issue

Hi,

We have RadListBox control with custom ItemTemplate and ItemsPanelTemplate as VirtualizingWrapPanel. For example, in the case when the count of bound items is equal to 30k and a user wants to "Select all" with Ctrl+A, the program hangs for almost 5 seconds.

I made an investigation and found, that the issue related to a check statement "does this item present in collection" inside SelectionChanger and it takes more than 92% of the execution time.

I am attaching the call tree after performance profiling:

Do you have any workaround for that or any good advice on how the issue might be solved?

Thank you in advance!

BR,

Andrew

ListBox

answered on 27 Sep 2021

1 answer

184 views

Combobox multi-selection: SelectedItems.Add(item) has very poor performance

Hi everyone,

I have a problem when adding the items into selectedItems of a multi-selection combobox: it take too long (around 30 seconds) to add a list of 260 items.

Is there any possibility to improve that situation?

Many thanks for your help,

Minh tuan

ComboBox

answered on 27 Sep 2021

1 answer

184 views

Images shape and position changed after exported to excel

Hi,

We have inserted multiple signed photos into the cell.However, when we exported the image as excel, the shape and position of the image changed, which was inconsistent with that in the RadSpreadSheet.

I've already uploaded an app.

In RadSpreadSheet:

In Excel:

Spreadsheet

answered on 24 Sep 2021

1 answer

219 views

How can i always enable ToggleButton of RadRibbonSplitbutton when CanExecute of Command returns false

Hi,

i try to always enable the DropDown-Part (the ToggleButton to open the drop down content) of RadRibbonSplitbutton even if the CanExecute of the binded command returns false. How can i achieve this behavior?

i have tried to set IsEnabled of the RadToggleButton via TogglePartStyle of RadRibbonSplitButton but didnt work.

<Style x:Key="SplitButtonToggleStyle" TargetType="telerik:RadToggleButton">
    <Setter Property="IsEnabled" Value="True"/>
</Style>

<Style TargetType="telerik:RadRibbonSplitButton" BasedOn="{StaticResource {x:Type telerik:RadRibbonSplitButton}}">
    <Setter Property="TogglePartStyle" Value="{StaticResource SplitButtonToggleStyle}"/>
</Style>

Thanks for your help!

Best regards,

Daniel

Buttons

RibbonView and RibbonWindow

answered on 23 Sep 2021

1 answer

204 views

RadMaskTextInput stretch

Hi,

I tried to use a RadMasketTextInput instead of a standard TextBox, mainly because of the SelectionOnFocus/Selectall property.
Always wotks well, but the width of control doesn't use all the space left in the parent as a TextBox, in the same position, does.
I tried with stackpanel, dockpanel and Grid, this is the attempt with dockpanel:

<DockPanel Grid.Row="0" Grid.Column="0" Margin="12,0,0,0" HorizontalAlignment="Stretch">
				<Label VerticalAlignment="Center" 
Content="{DynamicResource  ResourceKey={x:Static r:ResourcesKeys.NameLabel}}" />
	<t:RadMaskedTextInput 
	  HorizontalAlignment="Stretch"
	 SelectionOnFocus="SelectAll"
         Value="{Binding SorgenteName}"/>			
</DockPanel>

And with textbox:

<DockPanel Grid.Row="0" Grid.Column="0" Margin="12,0,0,0" HorizontalAlignment="Stretch">
				<Label VerticalAlignment="Center" 
				    Content="{DynamicResource  ResourceKey={x:Static r:ResourcesKeys.NameLabel}}" />
				<TextBox 
									  HorizontalAlignment="Stretch"
							Text="{Binding SorgenteName}"/>
			</DockPanel>