Develop Reference

Binding StaticResourse Key in uwp

i am trying to refix the hamburger menu with some FontAwesome Icons, my way to do this is a ResourseDictionoary in my app. Now i want to bind the keyFontAwesomeUserString for the glyph bellow . My property in the object is Icon with type string. In my list the Icon var of x:DataType="local:MenuItem" has the values from my resoursedictionary.
<FontIcon Grid.Column="0" FontFamily="{StaticResource FontAwesomeFontFamily}" Glyph="{StaticResource FontAwesomeUserString}" Foreground="White" />
<TextBlock Grid.Column="1" Text="{x:Bind Name, Mode=OneWay}" TextWrapping="Wrap" FontSize="16" VerticalAlignment="Center" Foreground="White"/>
Please tell me if/how i can bind the ResourceKey property of StaticResourse.
Thank you

You can change the values of a resource dictionary by replacing them through code like:
Application.Current.Resources["FontAwesomeUserString"] = "&glyphCode";
Do not forget that StaticResource are only read when the page is created.
Depending when you are updating your dictionary, it could be enough but if you want your application to properly update itself when you are changing something in the resource dictionary, you will have to use ThemeResource.
You can get more details about ThemeResource here.
<FontIcon Grid.Column="0"
FontFamily="{ThemeResource FontAwesomeFontFamily}"
Glyph="{ThemeResource FontAwesomeUserString}"
Foreground="White" />
Update
If you are just trying to set the glyph/font family for all your items, a regular binding is enough:
<DataTemplate x:Key="DefaultTemplate" x:DataType="local:MenuItem">
<Grid Width="240" Height="48">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="48" />
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<FontIcon Grid.Column="0" FontFamily="{x:Bind FontFamily}" Glyph="{x:Bind Icon}" Foreground="White" />
<TextBlock Grid.Column="1" Text="{x:Bind Name, Mode=OneWay}" TextWrapping="Wrap" FontSize="16" VerticalAlignment="Center" Foreground="White"/>
</Grid>
</DataTemplate>
You just have to define the FontFamily and the Icon in your view mod.
el
You can have a look at the hamburger menu from the UWP toolkit documentation

MediaElement Customize 'TimeRemainingElement' in MediaTransportControls UWP

I have changed the Background and Foreground Color of the MediaElement's MediaTransportControls using this solution UWP custom media controls not working
Now I want to
change the place of the 'TimeRemainingElement' and put it on the left of the Slider.
make the time show as 00:00 not 0:00:00
Is it possible to do that? Any idea how to do it?
1 more question: Is it possible to remove the "Cast to Device" icon/option from the MediaTransportControls?

Yeah, this is possible. As I've mentioned in my previous answer in UWP custom media controls not working, we can edit MediaTransportControls styles and templates to achieve what you want.
change the place of the 'TimeRemainingElement' and put it on the left of the Slider.
TimeRemainingElement is located in the Grid named "TimeTextGrid" which is in the second row of the Grid named "MediaTransportControls_Timeline_Grid". And the Slider named "ProgressSlider" is in the first row. So to put TimeRemainingElement on the left of the Slider, we can add a Grid in the first row, then remove TimeRemainingElement and ProgressSlider to the different columns of the new grid like:
<Grid x:Name="MyGrid">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="*" />
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<TextBlock x:Name="TimeRemainingElement"
Style="{StaticResource MediaTextBlockStyle}"
Text="00:00" />
<Slider x:Name="ProgressSlider"
Grid.Column="1"
Height="33"
MinWidth="80"
Margin="12,0"
VerticalAlignment="Center"
IsThumbToolTipEnabled="False"
Style="{StaticResource MediaSliderStyle}" />
<TextBlock x:Name="TimeElapsedElement"
Grid.Column="2"
Style="{StaticResource MediaTextBlockStyle}"
Text="00:00" />
</Grid>
And set the Visibility of TimeTextGrid to Collapsed like:
<Grid x:Name="TimeTextGrid"
Grid.Row="1"
Height="15"
Margin="12,0"
Visibility="Collapsed">
<!--<TextBlock x:Name="TimeElapsedElement"
Margin="0"
HorizontalAlignment="Left"
Style="{StaticResource MediaTextBlockStyle}"
Text="00:00" />
<TextBlock x:Name="TimeRemainingElement"
HorizontalAlignment="Right"
Style="{StaticResource MediaTextBlockStyle}"
Text="00:00" />-->
</Grid>
Here we can't delete TimeTextGrid. Missing TimeTextGrid would cause exception is some scenarios.
make the time show as 00:00 not 0:00:00
Changing the format of elapsed and remaining time is not easy. They are set in code-behind, just editing properties of TimeElapsedElement or TimeRemainingElement won't work. And I'm not sure why you need them show as "00:00". What if the media's duration is large than one hour? How to show a time that is "2:10:20"? I'd suggest you just use the original format, but if you do want to show it like "00:00", here is a workaround:
Firstly, we need to create a Format Converter to convert the time format like following:
public class TimeSpanFormatConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, string language)
{
if (!string.IsNullOrEmpty(value.ToString()))
{
var timeSpan = TimeSpan.Parse(value.ToString());
return timeSpan.ToString(#"mm\:ss");
}
else
{
return "00:00";
}
}
public object ConvertBack(object value, Type targetType, object parameter, string language)
{
throw new NotImplementedException();
}
}
Then as the Text of TimeElapsedElement and TimeRemainingElement are set in code-behind, we can't use TimeSpanFormatConverter in TimeElapsedElement and TimeRemainingElement directly. So I add two TextBlocks and bind their Text property to the Text of TimeElapsedElement and TimeRemainingElement and use TimeSpanFormatConverter in my new TextBlock like:
<TextBlock x:Name="MyTimeRemaining"
Style="{StaticResource MediaTextBlockStyle}"
Text="{Binding Text,
Converter={StaticResource TimeSpanFormatConverter},
ElementName=TimeRemainingElement}" />
The StaticResource TimeSpanFormatConverter is defined as
<local:TimeSpanFormatConverter x:Key="TimeSpanFormatConverter" />
After this, I can hide TimeTextGrid and use my TextBlocks in MyGrid:
<Grid x:Name="MediaTransportControls_Timeline_Grid">
<Grid.ColumnDefinitions>
<ColumnDefinition />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<Grid x:Name="MyGrid">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="*" />
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<TextBlock x:Name="MyTimeRemaining"
Style="{StaticResource MediaTextBlockStyle}"
Text="{Binding Text,
Converter={StaticResource TimeSpanFormatConverter},
ElementName=TimeRemainingElement}" />
<Slider x:Name="ProgressSlider"
Style="{StaticResource MediaSliderStyle}"
Grid.Column="1"
Height="33"
MinWidth="80"
Margin="12,0"
VerticalAlignment="Center"
IsThumbToolTipEnabled="False" />
<TextBlock x:Name="MyTimeElapsedElement"
Style="{StaticResource MediaTextBlockStyle}"
Grid.Column="2"
Text="{Binding Text,
Converter={StaticResource TimeSpanFormatConverter},
ElementName=TimeElapsedElement}" />
</Grid>
<ProgressBar x:Name="BufferingProgressBar"
Grid.ColumnSpan="3"
Height="4"
Margin="0,2,0,0"
VerticalAlignment="Top"
IsHitTestVisible="False"
IsIndeterminate="True"
Visibility="Collapsed" />
<Grid x:Name="TimeTextGrid"
Grid.Row="1"
Height="15"
Margin="12,0"
Visibility="Collapsed">
<TextBlock x:Name="TimeElapsedElement"
Style="{StaticResource MediaTextBlockStyle}"
Margin="0"
HorizontalAlignment="Left"
Text="00:00" />
<TextBlock x:Name="TimeRemainingElement"
Style="{StaticResource MediaTextBlockStyle}"
HorizontalAlignment="Right"
Text="00:00" />
</Grid>
</Grid>
Is it possible to remove the "Cast to Device" icon/option from the MediaTransportControls?
To remove the "Cast to Device" icon/option from the MediaTransportControls, we can just delete the AppBarButton named "CastButton" in "MediaControlsCommandBar" :
<!--<AppBarButton x:Name="CastButton"
Style="{StaticResource AppBarButtonStyle}"
MediaTransportControlsHelper.DropoutOrder="7">
<AppBarButton.Icon>
<FontIcon Glyph="" />
</AppBarButton.Icon>
</AppBarButton>-->
And finally, after these changes, the MediaTransportControls will look like:

Layout of list with different elements type in WPF

I need to fix a list with elements that have different types. Each of the type has it's own datatype to represent the viewmodel for each type. The following code works for me, but for some reason the data inside gets truncated, to some value (looks like default). I need to remove this trancation.
Here is what I have. This code is in the control, that could be placed in a list as well (it could be doubled or tripled). But I Don't think it's relevant.
<ScrollViewer VerticalScrollBarVisibility="Visible">
<ListView DockPanel.Dock="Top" Name="testCaseResultListView"
ItemsSource="{Binding LogItems}"
ItemContainerStyleSelector="{StaticResource fixSideViewLogItemStyleSelector}"
SelectionMode="Single"
>
<ListView.View>
<GridView x:Name="gridView2">
<GridView.ColumnHeaderContainerStyle>
<Style TargetType="{x:Type GridViewColumnHeader}">
<Setter Property="Visibility" Value="Collapsed" />
</Style>
</GridView.ColumnHeaderContainerStyle>
<GridViewColumn CellTemplateSelector="{StaticResource fixSideViewLogItemTemplateSelector}"/>
</GridView>
</ListView.View>
</ListView>
</ScrollViewer>
</DockPanel>
fixSideViewLogItemTemplateSelector and fixSideViewLogItemStyleSelector are the selectors, that return different datatypes or styles for each of the type in LogItems. The common datatype is a grid with two columns, but that also seems irrelevent - I tried to put a textbox there, and it still gets truncated.
I would like this column to be stretched to the whole gridView. When I set width, of the column, I see the column resizing, but I want it to occupy the whole space. This should be elastic - if I put one control in the window, it should occupy the whole window, and properly resize (with it's column) when the window is resized. If I put two controls, they should divide the space by halves, and still should be resized when the window is resized.
Any help, tips?
Upd
Here is an example of the template I'm using.
<DataTemplate x:Key="testCaseDataResultTemplate">
<!-- Test case results -->
<Grid Margin="50,0,0,0" HorizontalAlignment="Stretch">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="80"/>
<!--Test case result property-->
<ColumnDefinition />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition/>
<!--Is retry / Name-->
<RowDefinition />
<!--Test case number-->
<RowDefinition />
<!--Low limit-->
<RowDefinition />
<!--High limit-->
<RowDefinition />
<!--Measured-->
<RowDefinition />
<!--State-->
<RowDefinition />
<!--Test time-->
<RowDefinition />
<!--Comment-->
</Grid.RowDefinitions>
<!--Is retry / Name-->
<Image Grid.Column="0" Grid.Row="0"
Source="..\Resources\retry16.png"
Stretch="None" HorizontalAlignment="Left"
Visibility="{Binding Path=IsRetry, Converter={StaticResource boolToVisibilityConverter}}" />
<TextBlock Text="fh fhgfhg fhfhfhgfhg fhgfhfhgfhgfhgfhgfhgfhgf hgfhgfhgfhgfhgfhg fhfhgfhgf hgfhgfhfhg fhfhgf rdederserswerv 2" Grid.Column="0" Grid.ColumnSpan="2" Grid.Row="0" TextWrapping="Wrap" MaxWidth="{Binding ActualWidth, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type Grid}}}"/>
<!--Test case number-->
<TextBlock Text="Number:" Grid.Column="0" Grid.Row="1" />
<TextBlock Text="{Binding Path=TestCaseNumber}" Grid.Column="1" Grid.Row="1" />
<!--Low limit-->
<TextBlock Text="Low limit:" Grid.Column="0" Grid.Row="2" />
<TextBlock Text="{Binding Path=TestCaseData.LimitData.LowLimit}" Grid.Column="1" Grid.Row="2" />
<!--High limit-->
<TextBlock Text="High limit: " Grid.Column="0" Grid.Row="3" />
<TextBlock Text="{Binding Path=TestCaseData.LimitData.HighLimit}" Grid.Column="1" Grid.Row="3" />
<!--Measured-->
<TextBlock Text="Measured" Grid.Column="0" Grid.Row="4" />
<TextBlock Text="{Binding Path=MeasuredValue, Converter={StaticResource valasaConverter}}" Grid.Column="1" Grid.Row="4" />
<!--State-->
<TextBlock Text="Passed: " Grid.Column="0" Grid.Row="5" />
<TextBlock Text="{Binding Path=Passed}" Grid.Column="1" Grid.Row="5" />
<!--Test time-->
<TextBlock Text="Test time: " Grid.Column="0" Grid.Row="6" />
<TextBlock Text="{Binding Path=TestTime, StringFormat={}{0:hh':'mm':'ss'.'ff}}" Grid.Column="1" Grid.Row="6" />
<!--Comment-->
<TextBlock Text="{Binding Path=ShortMessage}"
Grid.Column="0" Grid.Row="7" Grid.ColumnSpan="2"
Visibility="{Binding Path=HasComment, Converter={StaticResource boolToVisibilityColConverter}}"
VerticalAlignment="Stretch"
MaxWidth="400"
TextAlignment="Center">
<TextBlock.ToolTip>
<StackPanel>
<TextBlock Text="{Binding Path=FullMessage}"/>
</StackPanel>
</TextBlock.ToolTip>
</TextBlock>
</Grid>
</DataTemplate>
It's a bit messy, but it is very simple. It has two columns - the captions, and the values. These columns are nothing to do with truncation.
I have tried also this template:
<DataTemplate x:Key="testCaseDataResultTemplate">
<TextBlock Text="Long long text goes here...... ->" HorizontalAlignment="Stretch"/>
</DataTemplate>
The text was of course longer :) It was still truncating, so I blame the listView/GridView, but not the inner template.

I think that this issue maybe is that you need to set the ListView.HorizontalContentAlignment to Stretch. Also the item container style and the item template must have the HorizontalAlignment to Stretch and the Width property must be Auto. Hope this tips helps...
EDIT
Also I think the problem could be the width of the GridViewColumn, that fix the items width
to it's own width. If you are using a single column, maybe you can change the ListView to a ListBox or an ItemsControl, just an idea.

I don't know what your templates looks like but I see a problem like this, it normally lies with a TextBlock that isn't wrapping and/or that the TextBlock's width is longer than it's parent.

Cannot say that I solved the puzzle, but at least it works as I expected. I removed the whole definition with GridView and columns inside, and put ItemTemplateSelector directly in ListView.
So my ListView looks now like this:
<ListView DockPanel.Dock="Top" Name="testCaseResultListView"
ItemsSource="{Binding LogItems}"
ItemContainerStyleSelector="{StaticResource fixSideViewLogItemStyleSelector}"
SelectionMode="Single"
HorizontalAlignment="Stretch"
HorizontalContentAlignment="Stretch"
ItemTemplateSelector="{StaticResource fixSideViewLogItemTemplateSelector}">
That did it! Hope that will help to somebody as well.

Trying to define a 'View' for a control by using a scrollviewer. Different results between Silverlight but not WP7?

I’m trying to create a simple image rotator control where a user can click an arrow and an image will slide to another one. I’m doing this with a stackpanel of images inside of a scrollviewer.
n silverlight, the following code works as expected:
<Grid x:Name="RootLayout" Margin="200" Width="480">
<Grid.RowDefinitions>
<RowDefinition Height="50" />
<RowDefinition Height="50" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="50" />
<ColumnDefinition Width="50" />
</Grid.ColumnDefinitions>
<ScrollViewer Grid.Row="0" Grid.Column="0" HorizontalScrollBarVisibility="Hidden" VerticalScrollBarVisibility="Hidden">
<StackPanel Orientation="Horizontal">
<StackPanel.RenderTransform>
<TranslateTransform x:Name="tt" />
</StackPanel.RenderTransform>
<StackPanel.Resources>
<Storyboard x:Name="sb">
<DoubleAnimation
Storyboard.TargetName="tt"
Storyboard.TargetProperty="X"
From="0"
To="-50"
Duration="0:0:0.25" />
</Storyboard>
</StackPanel.Resources>
<Rectangle Width="50" Height="50" Fill="Blue" />
<Rectangle Width="50" Height="50" Fill="Green" />
</StackPanel>
</ScrollViewer>
<Button Content="Push" Click="test" Grid.Row="1" Grid.Column="1" />
</Grid>
The "Push" button simply begins the storyboard.
Now, when I use this same code in a wp7 page, I get a runtime error on the Begin method of the storyboard saying that the targetname could not be resolved. Interestingly enough, if I remove the ScrollViewer wrapped around the StackPanel completely, the page runs just fine. Why would it fail on wp7 when the stackpanel is contained inside the scrollviewer? (Note that the root level of the phone page is phone:PhoneApplicationPage)
Thanks!

Can't answer why there is a difference, but generally when I have been writing storyboards on WP7 I reference the transform I want like this.
Storyboard.TargetName="myStackPanel" Storyboard.TargetProperty="(UIElement.RenderTransform).(TranslateTransform.X)
Perhaps there is a difference in the traveral algorithms.

EventBinding in a codebehind generated DataTemplate

lets begin with the scenario:
I have an ItemsControl inside a UserControl. In this ItemsControl I have a dynamicly created DataTemplate which is created and added in codebehind. As there doesn't seem to be a nice way to create a DataTemplate in codebehind I had to programmatically generate the xaml code for my DataTemplate into a string and then create a DataTemplate object out of it through XamlReader:
StringBuilder stringBuilder = new StringBuilder();
XmlWriter xmlWriter = XmlWriter.Create(stringBuilder);
... // use xmlWrite to generate desired xaml
// substring is use to cut out the xml declaration
DataTemplate template = (DataTemplate)XamlReader.Load(stringBuilder.ToString().Substring(39));
myItemsControl.ItemTemplate = template;
The generated XAML code looks like this and is actually used (the items get rendered as expected):
<DataTemplate xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
<Grid HorizontalAlignment="Stretch" Margin="0,0,0,0">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="100" />
<ColumnDefinition Width="100" />
<ColumnDefinition Width="100" />
</Grid.ColumnDefinitions>
<TextBlock Text="{Binding b0}" Grid.Column="0" />
<TextBox Text="{Binding b1, Converter={StaticResource customConverter}}" HorizontalAlignment="Stretch" Grid.Column="1" LostFocus="TxtAttribute_LostFocus" />
<TextBox Text="{Binding b2, Converter={StaticResource customConverter}}" HorizontalAlignment="Stretch" Grid.Column="2" LostFocus="TxtAttribute_LostFocus" />
<TextBox Text="{Binding b3, Converter={StaticResource customConverter}}" HorizontalAlignment="Stretch" Grid.Column="3" LostFocus="TxtAttribute_LostFocus" IsReadOnly="True" />
</Grid>
In case you wonder: the xmlns attribute is needed by the XamlReader to render the control, else you'll get an exception when reaching the code.
My problem:
now while the items look like expected and data is correctly bound neither my customConverter that should reformat the bound data, nor the LostFocus event are correctly applied. I don't get any error messages or warnings, converter and event just don't get called. Anyone an idea why and how I can get this to work?
Update:
I reached a point where I have to solve this problem or to try a different approach.
In my last tests I tried to add the Converter directly in the DataTemplate but I had no luck. The generated code now looks like this:
<DataTemplate xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:Conv="clr-namespace:my.Namespace" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
<Grid HorizontalAlignment="Stretch" Margin="0,0,0,0">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="80" />
<ColumnDefinition Width="80" />
<ColumnDefinition Width="80" />
</Grid.ColumnDefinitions>
<Grid.Resources>
<Conv:DecimalConverter x:Name="cnvDecimalConverter" />
</Grid.Resources>
<TextBlock Text="{Binding b0}" Grid.Column="0" />
<TextBox Text="{Binding b1, Converter={StaticResource cnvItemsDecimalConverter}}" HorizontalAlignment="Stretch" Grid.Column="1" LostFocus="TxtAttribute_LostFocus" />
<TextBox Text="{Binding b2, Converter={StaticResource cnvItemsDecimalConverter}}" HorizontalAlignment="Stretch" Grid.Column="2" LostFocus="TxtAttribute_LostFocus" />
<TextBox Text="{Binding b3, Converter={StaticResource cnvItemsDecimalConverter}}" HorizontalAlignment="Stretch" Grid.Column="3" LostFocus="TxtAttribute_LostFocus" IsReadOnly="True" />
</Grid>
</DataTemplate>
Any ideas?
Update 2:
As I just found out XamlReader.Load() just is not able to hook up events. See this Thread in the Silverlight Forums
The Converters should work, I guess I still have some kind of namespace problem I don't see. I'm kind of out of options with my "simple" ItemsControl approach so I think it's time to look for another method to reach my needs.

Just to clear up the situation: It is not possible to generate dynamic DataTemplates with events through generating an xaml string and extract the control from this. The only option to parse xaml code with events is through Application.LoadComponent which needs a URI to work.
I ended up using nested ItemControls to create my "dynamic" behaviour.