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POIs WPF StackPanel freezable
 

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    <p>I'm using <code>StackPanel</code> in WPF just for easy layouting horizontally aligned boxes and lines, but it seems the performance of application is getting slower when using <code>StackPanel</code>.</p> <p>All the Microsoft tutorials seems to talk only about freezing some <code>SolidColorBrush</code> etc. objects, but can StackPanel be freezed after first layout so the CPU doesn't have to layout it all the time, just once?</p> <p>Or am I just forced to use the very fast <code>Canvas</code> object and layout all the objects inside it one by one?</p> <p>Example 1: Very easy to layout in designer, but lacks performance:</p> <pre><code> &lt;StackPanel Height="35" Canvas.Left="49" Canvas.Top="874" Width="395" Orientation="Horizontal"&gt; &lt;TextBox Text="test" Width="65"/&gt; &lt;Rectangle Stroke="Black" Width="1" /&gt; &lt;TextBox Text="test" Width="55"/&gt; &lt;Rectangle Stroke="Black" Width="1" /&gt; &lt;TextBox Text="test" Width="75"/&gt; &lt;Rectangle Stroke="Black" Width="1" /&gt; &lt;TextBox Text="test" Width="35"/&gt; &lt;Rectangle Stroke="Black" Width="1" /&gt; &lt;TextBox Text="test" Width="95"/&gt; &lt;Rectangle Stroke="Black" Width="1" /&gt; &lt;TextBox Text="test" Width="65"/&gt; &lt;Rectangle Stroke="Black" Width="1" /&gt; &lt;/StackPanel&gt; </code></pre> <p>Example 2: Good performance, making layout in designer is a pain:</p> <pre><code> &lt;Canvas Height="35" Canvas.Left="49" Canvas.Top="914" Width="395"&gt; &lt;TextBox Text="test" Width="65" Height="35"/&gt; &lt;Rectangle Stroke="Black" Width="1" Height="35" Canvas.Left="65"/&gt; &lt;TextBox Text="test" Width="55" Canvas.Left="66" Height="35"/&gt; &lt;Rectangle Stroke="Black" Width="1" Height="35" Canvas.Left="195"/&gt; &lt;TextBox Text="test" Width="75" Height="35" Canvas.Left="122"/&gt; &lt;Rectangle Stroke="Black" Width="1" Height="35" Canvas.Left="121"/&gt; &lt;TextBox Text="test" Width="35" Height="35" Canvas.Left="198"/&gt; &lt;Rectangle Stroke="Black" Width="1" Height="35" Canvas.Left="197"/&gt; &lt;TextBox Text="test" Width="95" Height="35" Canvas.Left="234"/&gt; &lt;Rectangle Stroke="Black" Width="1" Height="35" Canvas.Left="329"/&gt; &lt;TextBox Text="test" Width="65" Height="35" Canvas.Left="330"/&gt; &lt;Rectangle Stroke="Black" Width="1" Height="35" Canvas.Left="233"/&gt; &lt;/Canvas&gt; </code></pre>
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    1. COpost your XAML. Also if you have large lists with much scrolling you'd be better using `VirtualizingStackPanel` instead.
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      1. USFederico Berasategui
    2. CONo scrolling planned for this - just laying out ~15 textboxes and 1 pixel wide black rectangles in turns side by side. All of these wrapped inside a UserControl, and then about 5-10 of these UserControls in a form.
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    3. CO1 - post your XAML. 2 - Please don't call a WPF `Window` a "form". That's an insult to my beliefs and values.
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      1. USFederico Berasategui
 

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