Question

I have multiple textboxes with TextChanged events bound to the same handler

<TextBox TextChanged="TextBox_TextChanged" />
<TextBox TextChanged="TextBox_TextChanged" />
<TextBox TextChanged="TextBox_TextChanged" />
<TextBox TextChanged="TextBox_TextChanged" />

Is there any way to do something like this?

<StackPanel>
    <StackPanel.Resources>
        <Style TargetType="TextBox">
            <Setter Property="TextChanged" Value="TextBox_TextChanged" />
         </Style>
    </StackPanel.Resources>
    <TextBox />
    <TextBox />
    <TextBox />
    <TextBox />
</StackPanel>

I know the code above is invalid, but it is something similar to what I want to achieve

Answer 1

If I’m not mistaken, you can put the TextBoxBase.TextChanged="TextBox_TextChanged" attribute on the common container element of all of your text boxes, for ex:

<StackPanel TextBoxBase.TextChanged="TextBox_TextChanged">
    <TextBox />
    <TextBox />
    <TextBox />
    <TextBox />
</StackPanel>