Wpf – How to detect a change in the Text property of a TextBlock

textblockwpf

Is there any way to detect a change in the Text property of a TextBlock element using events?

(I'm trying to provide an animation for highlighting the TextBlocks whose Text property change within a DataGrid)

Best Solution

It's easier than that! Late answer, but much simpler.

// assume textBlock is your TextBlock
var dp = DependencyPropertyDescriptor.FromProperty(
             TextBlock.TextProperty,
             typeof(TextBlock));
dp.AddValueChanged(textBlock, (sender, args) =>
{
    MessageBox.Show("text changed");
});

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WPF Textblock, linebreak in Text attribute

Try this:

<TextBlock>
    line1
    <LineBreak />
    line2
</TextBlock>

Wpf – Text vertical alignment in WPF TextBlock

A Textblock itself can't do vertical alignment

The best way to do this that I've found is to put the textblock inside a border, so the border does the alignment for you.

<Border BorderBrush="{x:Null}" Height="50">
    <TextBlock TextWrapping="Wrap" Text="Some Text" VerticalAlignment="Center"/>
</Border>

Note: This is functionally equivalent to using a grid, it just depends how you want the controls to fit in with the rest of your layout as to which one is more suitable

Best Solution

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Wpf – Text vertical alignment in WPF TextBlock

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