WPF change UserControl textblock from another window

Hey all I am new at WPF so here is my question:

How can I change the text in a TextBlock from my mainWindow when the textBlock is in the window named curTemp.xaml?

curTemp.xaml code:

public partial class curTemp : UserControl
{
public string _valTempChange
{
get { return middleForcastCurrentTemp.Text; }
set { middleForcastCurrentTemp.Text = value; }
}
public curTemp()
{
InitializeComponent();
}
}

Xaml of the above UserControl:

<Grid>
<TextBlock TextWrapping="Wrap" Padding="5" Foreground="White" Panel.ZIndex="7" HorizontalAlignment="Left" VerticalAlignment="Top" Margin="15,-110,-43,0" Width="198" Height="122">
<TextBlock.Effect>
<DropShadowEffect BlurRadius="4" Direction="0" ShadowDepth="0" />
TextBlock.Effect>
<outlineText:OutlinedTextBlock Height="146" Width="192" TextOptions.TextRenderingMode="Aliased" FontFamily="Segoe UI" FontSize="100" x:FieldModifier="public" x:Name="middleForcastCurrentTemp"
FontWeight="Medium" TextWrapping="Wrap" TextAlignment="Right" Stroke="Black" StrokeThickness="3" Fill="White" Text="10"/>
TextBlock>
Grid>

And in my MainWindow code:


public MainWindow()  
        {  
            InitializeComponent();  
  
            curTemp _curTempWindow = new curTemp();  
  
            _curTempWindow._valTempChange = "55";  
  
        }

When I run that code it never shows "55" in the textBlock. It only shows my default text "10".

What am I doing incorrect here?

2 Replies

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David G8y ago
i set up a button and once everything is loaded i clicked on it and still it did not change.
0
Amit Gupta8y ago
As you are using a user control, I think you are adding this after main window loaded.

Change the value after loading the usercontrol or at form load event.
0