<h2 dir="auto"><g-emoji class="g-emoji" alias="information_source" fallback-src="https://github.githubassets.com/images/icons/emoji/unicode/2139.png">ℹ</g-emoji> Computer information</h2>
<ul dir="auto">
<li>PowerToys version: 0.23.0</li>
<li>PowerToy Utility: fancy zones</li>
<li>Running PowerToys as Admin: yes</li>
<li>Windows build number:  19041.508</li>
</ul>
<h2 dir="auto">📝 Provide detailed reproduction steps (if any)</h2>
<ol dir="auto">
<li>… input value 600 spaces around zone in fancy zones editor</li>
<li>… apply</li>
<li>… launch fancy zones editor</li>
</ol>
<h3 dir="auto"><g-emoji class="g-emoji" alias="heavy_check_mark" fallback-src="https://github.githubassets.com/images/icons/emoji/unicode/2714.png">✔️</g-emoji> Expected result</h3>
<p dir="auto">error crash. error log onto fzeditorcrashlog.txt</p>
<h3 dir="auto">❌ Actual result</h3>
<p dir="auto">error crash</p>
<p dir="auto">error log below</p>
<h2 dir="auto">Exception</h2>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="System.ArgumentException: '-231.5' is not a valid value for property 'Width'.
   Source: WindowsBase
   TargetAssembly: WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
   TargetModule: WindowsBase.dll
   TargetSite: Void SetValueCommon(System.Windows.DependencyProperty, System.Object, System.Windows.PropertyMetadata, Boolean, Boolean, System.Windows.OperationType, Boolean)
   at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal)
   at FancyZonesEditor.LayoutPreview.RenderActualScalePreview(GridLayoutModel grid)
   at FancyZonesEditor.LayoutPreview.RenderPreview()
   at System.Windows.FrameworkElement.RaiseDependencyPropertyChanged(EventPrivateKey key, DependencyPropertyChangedEventArgs args)
   at System.Windows.FrameworkElement.OnDataContextChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
   at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
   at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry&amp; newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)
   at System.Windows.TreeWalkHelper.OnInheritablePropertyChanged(DependencyObject d, InheritablePropertyChangeInfo info, Boolean visitedViaVisualTree)
   at System.Windows.DescendentsWalker`1._VisitNode(DependencyObject d, Boolean visitedViaVisualTree)
   at System.Windows.DescendentsWalker`1.WalkLogicalChildren(FrameworkElement feParent, FrameworkContentElement fceParent, IEnumerator logicalChildren)
   at System.Windows.DescendentsWalker`1.WalkFrameworkElementLogicalThenVisualChildren(FrameworkElement feParent, Boolean hasLogicalChildren)
   at System.Windows.DescendentsWalker`1.IterateChildren(DependencyObject d)
   at System.Windows.DescendentsWalker`1.StartWalk(DependencyObject startNode, Boolean skipStartNode)
   at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
   at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry&amp; newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)
   at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at FancyZonesEditor.App.OnStartup(Object sender, StartupEventArgs e)
   at System.Windows.Application.OnStartup(StartupEventArgs e)
   at System.Windows.Application.&lt;.ctor&gt;b__1_0(Object unused)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
   at System.Windows.Threading.DispatcherOperation.InvokeImpl()
   at MS.Internal.CulturePreservingExecutionContext.CallbackWrapper(Object obj)
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   at MS.Internal.CulturePreservingExecutionContext.Run(CulturePreservingExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Windows.Threading.DispatcherOperation.Invoke()
   at System.Windows.Threading.Dispatcher.ProcessQueue()
   at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean&amp; handled)
   at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean&amp; handled)
   at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
   at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
   at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
   at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG&amp; msg)
   at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
   at System.Windows.Application.RunDispatcher(Object ignore)
   at System.Windows.Application.RunInternal(Window window)
   at FancyZonesEditor.App.Main()
"><pre class="notranslate"><code class="notranslate">System.ArgumentException: '-231.5' is not a valid value for property 'Width'.
   Source: WindowsBase
   TargetAssembly: WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
   TargetModule: WindowsBase.dll
   TargetSite: Void SetValueCommon(System.Windows.DependencyProperty, System.Object, System.Windows.PropertyMetadata, Boolean, Boolean, System.Windows.OperationType, Boolean)
   at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal)
   at FancyZonesEditor.LayoutPreview.RenderActualScalePreview(GridLayoutModel grid)
   at FancyZonesEditor.LayoutPreview.RenderPreview()
   at System.Windows.FrameworkElement.RaiseDependencyPropertyChanged(EventPrivateKey key, DependencyPropertyChangedEventArgs args)
   at System.Windows.FrameworkElement.OnDataContextChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
   at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
   at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry&amp; newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)
   at System.Windows.TreeWalkHelper.OnInheritablePropertyChanged(DependencyObject d, InheritablePropertyChangeInfo info, Boolean visitedViaVisualTree)
   at System.Windows.DescendentsWalker`1._VisitNode(DependencyObject d, Boolean visitedViaVisualTree)
   at System.Windows.DescendentsWalker`1.WalkLogicalChildren(FrameworkElement feParent, FrameworkContentElement fceParent, IEnumerator logicalChildren)
   at System.Windows.DescendentsWalker`1.WalkFrameworkElementLogicalThenVisualChildren(FrameworkElement feParent, Boolean hasLogicalChildren)
   at System.Windows.DescendentsWalker`1.IterateChildren(DependencyObject d)
   at System.Windows.DescendentsWalker`1.StartWalk(DependencyObject startNode, Boolean skipStartNode)
   at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
   at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry&amp; newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)
   at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at FancyZonesEditor.App.OnStartup(Object sender, StartupEventArgs e)
   at System.Windows.Application.OnStartup(StartupEventArgs e)
   at System.Windows.Application.&lt;.ctor&gt;b__1_0(Object unused)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
   at System.Windows.Threading.DispatcherOperation.InvokeImpl()
   at MS.Internal.CulturePreservingExecutionContext.CallbackWrapper(Object obj)
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   at MS.Internal.CulturePreservingExecutionContext.Run(CulturePreservingExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Windows.Threading.DispatcherOperation.Invoke()
   at System.Windows.Threading.Dispatcher.ProcessQueue()
   at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean&amp; handled)
   at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean&amp; handled)
   at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
   at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
   at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
   at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG&amp; msg)
   at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
   at System.Windows.Application.RunDispatcher(Object ignore)
   at System.Windows.Application.RunInternal(Window window)
   at FancyZonesEditor.App.Main()

</code></pre></div>
<h2 dir="auto">Environment</h2>
<ul dir="auto">
<li>Command Line: "C:\Program Files\PowerToys\modules\FancyZones\FancyZonesEditor.exe" 374_1080_1474_864 "35000"</li>
<li>Timestamp: 10/01/2020 16:21:23</li>
<li>OS Version: Microsoft Windows NT 6.2.9200.0</li>
<li>IntPtr Length: 8</li>
<li>x64: True</li>
<li>CLR Version: 4.0.30319.42000</li>
</ul>
<h2 dir="auto">Assemblies - FancyZonesEditor.exe</h2>
<ul dir="auto">
<li>FancyZonesEditor, Version=0.23.0.0, Culture=neutral, PublicKeyToken=null (C:\Program Files\PowerToys\modules\FancyZones\FancyZonesEditor.exe)</li>
<li>System.Text.Json, Version=4.0.1.2, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51 (C:\Program Files\PowerToys\modules\FancyZones\System.Text.Json.dll)</li>
<li>System.Memory, Version=4.0.1.1, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51 (C:\Program Files\PowerToys\modules\FancyZones\System.Memory.dll)</li>
<li>System.Runtime.CompilerServices.Unsafe, Version=4.0.6.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a (C:\Program Files\PowerToys\modules\FancyZones\System.Runtime.CompilerServices.Unsafe.dll)</li>
<li>System.Buffers, Version=4.0.3.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51 (C:\Program Files\PowerToys\modules\FancyZones\System.Buffers.dll)</li>
<li>System.Numerics.Vectors, Version=4.1.4.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a (C:\Program Files\PowerToys\modules\FancyZones\System.Numerics.Vectors.dll)</li>
<li>System.ValueTuple, Version=4.0.3.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51 (C:\Program Files\PowerToys\modules\FancyZones\System.ValueTuple.dll)</li>
<li>MahApps.Metro, Version=2.0.0.0, Culture=neutral, PublicKeyToken=51482d6f650b2b3f (C:\Program Files\PowerToys\modules\FancyZones\MahApps.Metro.dll)</li>
<li>ControlzEx, Version=4.0.0.0, Culture=neutral, PublicKeyToken=69f1c32f803d307e (C:\Program Files\PowerToys\modules\FancyZones\ControlzEx.dll)</li>
<li>ManagedCommon, Version=0.23.0.0, Culture=neutral, PublicKeyToken=null (C:\Program Files\PowerToys\modules\FancyZones\ManagedCommon.dll)</li>
<li>Telemetry, Version=0.23.0.0, Culture=neutral, PublicKeyToken=null (C:\Program Files\PowerToys\modules\FancyZones\Telemetry.dll)</li>
<li>Microsoft.Xaml.Behaviors, Version=1.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a (C:\Program Files\PowerToys\modules\FancyZones\Microsoft.Xaml.Behaviors.dll)</li>
<li>mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 (C:\Windows\Microsoft.NET\Framework64\v4.0.30319\mscorlib.dll)</li>
<li>System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 (C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System\v4.0_4.0.0.0__b77a5c561934e089\System.dll)</li>
<li>System.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 (C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Core\v4.0_4.0.0.0__b77a5c561934e089\System.Core.dll)</li>
<li>PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35 (C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\PresentationFramework\v4.0_4.0.0.0__31bf3856ad364e35\PresentationFramework.dll)</li>
<li>PresentationCore, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35 (C:\WINDOWS\Microsoft.Net\assembly\GAC_64\PresentationCore\v4.0_4.0.0.0__31bf3856ad364e35\PresentationCore.dll)</li>
<li>WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35 (C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\WindowsBase\v4.0_4.0.0.0__31bf3856ad364e35\WindowsBase.dll)</li>
<li>System.Xaml, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 (C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Xaml\v4.0_4.0.0.0__b77a5c561934e089\System.Xaml.dll)</li>
<li>System.Configuration, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a (C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Configuration\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Configuration.dll)</li>
<li>System.Xml, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 (C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Xml\v4.0_4.0.0.0__b77a5c561934e089\System.Xml.dll)</li>
<li>PresentationFramework.Aero2, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35 (C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\PresentationFramework.Aero2\v4.0_4.0.0.0__31bf3856ad364e35\PresentationFramework.Aero2.dll)</li>
<li>PresentationFramework-SystemXml, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 (C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\PresentationFramework-SystemXml\v4.0_4.0.0.0__b77a5c561934e089\PresentationFramework-SystemXml.dll)</li>
<li>System.Windows.Controls.Ribbon, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 (C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Windows.Controls.Ribbon\v4.0_4.0.0.0__b77a5c561934e089\System.Windows.Controls.Ribbon.dll)</li>
<li>netstandard, Version=2.0.0.0, Culture=neutral, Public</li>
</ul>
<h2 dir="auto"><g-emoji class="g-emoji" alias="camera" fallback-src="https://github.githubassets.com/images/icons/emoji/unicode/1f4f7.png">📷</g-emoji> Screenshots</h2>
<p dir="auto">If the user sets big enough <code class="notranslate">Space around zones</code> value, the Editor would crash on the next launch.<br>
'Big enough' means that on the grid zone size calculation, its width or height would be a negative value with selected space. It depends on zones count and display resolution.</p>
<h2 dir="auto"><g-emoji class="g-emoji" alias="information_source" fallback-src="https://github.githubassets.com/images/icons/emoji/unicode/2139.png">ℹ</g-emoji> Computer information</h2>
<ul dir="auto">
<li>PowerToys version: master</li>
<li>PowerToy Utility: FancyZones</li>
</ul>
<h2 dir="auto"><g-emoji class="g-emoji" alias="memo" fallback-src="https://github.githubassets.com/images/icons/emoji/unicode/1f4dd.png">📝</g-emoji> Provide detailed reproduction steps (if any)</h2>
<ol dir="auto">
<li>Set some big enough value (1000 in my case).</li>
<li>Click <code class="notranslate">Apply</code>.</li>
<li>Open editor.</li>
</ol>
<h3 dir="auto">✔️ Expected result</h3>
<p dir="auto">Editor is opened.</p>
<h3 dir="auto"><g-emoji class="g-emoji" alias="x" fallback-src="https://github.githubassets.com/images/icons/emoji/unicode/274c.png">❌</g-emoji> Actual result</h3>
<p dir="auto">Editor stopped working,</p>