Delay when maximizing on .NET 5

[binarycow]

Describe the bug Delay when maximizing on .NET 5

Edit: Also happens when zooming in/out with mouse wheel

To Reproduce Steps to reproduce the behavior:

1. Load 16MB file
2. Maximize window - Delay of about 3 seconds before window actually resizes

Expected behavior

1. Window should resize instantly (or close to it)

Versions

• Win10
• .NET 5
• Nuget package 2.1.2

<Window x:Class="HexEditor.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:HexEditor" 
        xmlns:control="clr-namespace:WpfHexaEditor;assembly=WPFHexaEditor"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <Grid>
        <control:HexEditor FileName="{Binding Filename}" />
    </Grid>
</Window>

[abbaye]

Thank for reports,

I have a solution. I will implement today if I have the time :)

Thank for reporting

[abbaye]

Fixed :)

Get the last code and set the control property :

PreloadByteInEditorMode = PreloadByteInEditor.MaxScreenVisibleLine.

by default the property is set to PreloadByteInEditor.None

Please give me a feedback

[binarycow]

@abbaye - That's much faster.

Note: It's quite slow for the initial load. 16 MB file. Like, 5-10 seconds.

[abbaye]

The file is not long to load but the all ByteControl at first time.

You can select the preload mode via the property PreloadByteInEditor :)

[binarycow]

So,

PreloadByteInEditor.MaxScreenVisibleLine fixes the screen maximizing delay

What would be the best value to use to fix the screen maximizing delay, but also won't take too long for initial load?

[abbaye]

MaxScreenVisibleLine is the most appropriate but it's have a cost on the first load only.

I will add another value in PreLoadByteInEditor...I think I can make the load in two times like (Load max visible line first, after at first file load... Load maxScreen line. I will make some test

I will come back tomorrow with a solution

[binarycow]

👍 Thanks for the help!

[abbaye]

Thank to you ! It's with come back issues that I can optimize the control :)

[abbaye]

Give me a feedback when possible

please test the new MaxStreenVisibileLineAtDataLoad