How could we copy UWP UI element in C#?

GuoLearn 251

XAML: <Page.Resources>
<TextBlock xml:space="preserve" x:Key="preserveSpace"></TextBlock>
</Page.Resources>
<StackPanel name="stackPanel"/>

C#：
TextBlock textBlockStyle = this.Resources.FirstOrDefault(o=>o.Key.ToString()== "preserveSpace").Value as TextBlock;
textBlock=copy(textBlockStyle);
stackPanel.Children.Add(textBlock);
stackPanel.Children.Add(textBlock);

if we do not copy ,
stackPanel.Children.Add(textBlockStyle);
stackPanel.Children.Add(textBlockStyle);
Add textBlockStyle twice will make something error.

Could you tell me how to Copy the textBlockStyle or anyway to make all textblocks xml:space="preserve" ,please?

Roy Li - MSFT 31,766 Reputation points Microsoft Vendor

2021-10-25T09:41:18.217+00:00

Are you developing a WPF project? I noticed that you are using Window.Resources tag in your XAML which is only used in WPF.
GuoLearn 251 Reputation points

2021-10-25T10:07:39.783+00:00

Yes,A WPF use UWP , I made a mistake，it would be Page.Resources in UWP
Roy Li - MSFT 31,766 Reputation points Microsoft Vendor

2021-10-26T01:00:15.38+00:00

So that is a WPF project. I'll change the tag as WPF so that the WPF engineers could check that.

Hui Liu-MSFT 38,191 Microsoft Vendor

Hi,@GuoLearn . Do you prefer to use uwp Textblock in wpf or set xml:space="preserve" for Textblock? If you could use wpf Textblock, you can try the following methods. Any questions, please let me know.

<Window    xmlns:System="clr-namespace:System;assembly=mscorlib">  
<Window.Resources>  
            <System:String x:Key="myText" xml:space="preserve">Total:   </System:String>  
            <System:String x:Key="myText1" xml:space="preserve">   Total:   </System:String>  
              <Style x:Key="mytb" TargetType="TextBlock">  
            <Setter Property="Text" Value="{Binding Tag,RelativeSource={RelativeSource Self},  
                          StringFormat='    {0}',  
                          Mode=TwoWay,  
                          UpdateSourceTrigger=PropertyChanged}" />  
  </Style>  
</Window.Resources>  
        <StackPanel>  
            <TextBlock Width="100" Height="50" Background="AliceBlue" Text="{StaticResource myText}"/>  
            <TextBlock Width="100" Height="50" Background="AliceBlue" Text="{StaticResource myText1}"/>  
            <TextBlock Width="100" Height="50" Background="AliceBlue" Tag="hello" Style="{StaticResource mytb}"/>  
        </StackPanel>

GuoLearn 251 Reputation points

2021-10-27T09:50:25.62+00:00
This is not a very broad way to make the Textblock's xml:space="preserve",we can not control what the user input .If they input " " or " No.12 " ..... And what i see in the WPF app is the WPF app default retains the space at the end of a string,if the string is " " we need set xml:space="preserve" to keep the space .

``(
WPF seems have a function :
public UIElement DeepCopy(UIElement element)
{
string shapestring = XamlWriter.Save(element);
StringReader stringReader = new StringReader(shapestring);
XmlTextReader xmlTextReader = new XmlTextReader(stringReader);
UIElement DeepCopyobject = (UIElement)XamlReader.Load(xmlTextReader);
return DeepCopyobject;
}

Can make a broad way to copy XAML element.

`` Is UWP have anyway to copy XAML element like the above function?

),

But the UWP default is not retains the space at the end of a string.

So i want to know how the UWP keep the space in the textblock element, on a broad way,could you help me？

Accepted answer

Hui Liu-MSFT 38,191 Reputation points Microsoft Vendor

2021-10-28T06:40:26.357+00:00

Based on my research, UWP itself does not have such an API. You could set xml:space="preserve" to UWP textblock one by one. It is not possible to copy this property to the control and copy it. Uwp is the same as Wpf, essentially adding xml:space="preserve" to the TextBlock one by one. You can set the reserved space of TextBlock in batches by looping.

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GuoLearn 251 Reputation points

2021-10-28T06:58:24.063+00:00

Thank you anyway.
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How could we copy UWP UI element in C#?

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