System.AccessViolationException 在 InitializeComponent() 出现

huangapple
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英文:

System.AccessViolationException at InitializeComponent()

问题

我注意到你提供了一些代码和XAML，但你没有提出具体的问题或翻译请求。请问你需要针对这些代码或XAML的哪部分进行翻译或需要什么样的帮助？

英文:

I'm working on a UWP app, and it keeps crashing at the InitializeComponent(); call with the error message: System.AccessViolationException: 'Attempted to read or write protected memory. This is often an indication that other memory is corrupt.'

Here's my code for this class:

  1. using System.Collections.Generic;
  2. using System.Linq;
  3. using Windows.UI.Xaml;
  4. using Windows.UI.Xaml.Controls;
  5. using Windows.UI.Xaml.Media;
  7. namespace esheets_trafalgareng
  8. {
  9.     public sealed partial class Tasks : Page
  10.     {
  11.         public static List<Button> Buttons { get; set; }
  12.         public static Button SelectedButton;
  14.         public Tasks()
  15.         {
  16.             InitializeComponent();
  17.         }
  19.         private void Page_Loaded(object sender, RoutedEventArgs e)
  20.         {
  21.             Buttons = new List<Button>();
  22.             foreach (Button button in secondaryContainer.Children.OfType<Button>())
  23.             {
  24.                 if (button.Name == "myTasks") SelectedButton = button;
  25.                 Buttons.Add(button);
  26.             }
  27.             if (SelectedButton != null) SelectedButton.isPressed = true;
  28.             UpdateTheme();
  29.         }
  31.         public void TaskListChanged(Button button)
  32.         {
  33.             UpdateTheme();
  34.         }
  36.         private void UpdateTheme()
  37.         {
  38.             if (Theme.IsLight()) SetLightTheme();
  39.             else SetDarkTheme();
  40.         }
  42.         private void SetLightTheme()
  43.         {
  44.             //Theme.UseImmersiveDarkMode(this.handle, false);
  46.             primaryContainer.Background = new SolidColorBrush(Theme.LightMain);
  47.             primaryContainer.PaneBackground = new SolidColorBrush(Theme.LightSide);
  48.         }
  50.         private void SetDarkTheme()
  51.         {
  52.             //Theme.UseImmersiveDarkMode(this.handle, true);
  54.             primaryContainer.Background = new SolidColorBrush(Theme.DarkMain);
  55.             primaryContainer.PaneBackground = new SolidColorBrush(Theme.DarkSide);
  56.         }
  58.         internal void AddButton(Button button)
  59.         {
  60.             secondaryContainer.Children.Add(button);
  61.             Buttons.Add(button);
  62.         }
  63.     }
  64. }

And my XAML code:

  1. <Page
  2.     x:Class="esheets_trafalgareng.Tasks"
  3.     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  4.     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  5.     xmlns:local="using:esheets_trafalgareng"
  6.     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
  7.     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
  8.     mc:Ignorable="d"
  9.     Background="{ThemeResource ApplicationPageBackgroundThemeBrush}" Loaded="Page_Loaded">
  11.     <Grid>
  12.         <SplitView x:Name="primaryContainer" Grid.RowSpan="2" IsPaneOpen="True">
  13.             <SplitView.Pane>
  14.                 <StackPanel x:Name="secondaryContainer">
  15.                     <local:PersonalButton x:Name="personalButton" Margin="10,10,10,10" VerticalAlignment="Top" HorizontalAlignment="Center" Width="300" Height="54"/>
  16.                     <local:Button x:Name="myTasks" Content="My Tasks" Margin="10,90,10,10" VerticalAlignment="Top" HorizontalAlignment="Center" Width="300" Height="36" ImageOnly="False" IsList="True"/>
  17.                     <local:Button x:Name="assignedToMe"  Content="Assigned To Me" Margin="0,131,0,0" VerticalAlignment="Top" Width="300" Height="36" HorizontalAlignment="Center" ImageOnly="False" IsList="True"/>
  18.                     <local:Button x:Name="addList" Margin="0,172,0,0" VerticalAlignment="Top" Width="300" Height="36" HorizontalAlignment="Center" ImageOnly="True" IsList="False"/>
  19.                 </StackPanel>
  20.             </SplitView.Pane>
  21.         </SplitView>
  22.     </Grid>
  23. </Page>

The Button and PersonalButton components are custom components and I've put their code below:

  1. using System;
  2. using System.Collections.Generic;
  3. using System.ComponentModel;
  4. using Windows.UI.Xaml.Controls;
  5. using static esheets_trafalgareng.ImageOnlySettings;
  7. namespace esheets_trafalgareng
  8. {
  9.     public partial class Button : Windows.UI.Xaml.Controls.Button
  10.     {
  11.         [Category("Appearance")]
  12.         [Browsable(true)]
  13.         [Localizable(true)]
  14.         [Description("Will determine whether the button only has an image or not")]
  15.         internal Mode ImageOnly { get; set; }
  17.         [Category("Common")]
  18.         [Browsable(true)]
  19.         [Localizable(true)]
  20.         [Description("Will determine whether the button will be used as a list or not")]
  21.         internal Mode IsList { get; set; }
  23.         internal readonly List<Task> tasks = new List<Task>();
  25.         internal static int listCounter = 0;
  27.         private static new Windows.UI.Color Background
  28.         {
  29.             get
  30.             {
  31.                 if (Theme.IsLight()) return Theme.LightSide;
  32.                 else return Theme.DarkSide;
  33.             }
  34.         }
  35.         private static new Windows.UI.Color Foreground
  36.         {
  37.             get
  38.             {
  39.                 if (Theme.IsLight()) return Windows.UI.Color.FromArgb(0, 0, 0, 0);
  40.                 else return Windows.UI.Color.FromArgb(0, 255, 255, 255);
  41.             }
  42.         }
  43.         private static readonly Windows.UI.Color LightHover = Theme.LightButtonHover;
  44.         private static readonly Windows.UI.Color DarkHover = Theme.DarkButtonHover;
  46.         private static readonly int FontHeight = 10;
  47.         //private static readonly Font ButtonFont = new Font(new FontFamily("Roboto"), FontHeight, System.Drawing.FontStyle.Bold);
  49.         private bool isHover = false;
  50.         public bool isPressed = false;
  52.         public Button()
  53.         {
  54.             AddEvents();
  55.         }
  57.         private void AddEvents()
  58.         {
  59.             PointerEntered += Button_PointerEntered;
  60.             PointerExited += Button_PointerExited;
  61.             PointerPressed += Button_PointerPressed;
  62.         }
  64.         private Tasks GetTopParent()
  65.         {
  66.             Control c = this;
  67.             while (c.Parent != null)
  68.             {
  69.                 c = (Control)c.Parent;
  70.             }
  71.             if (c.GetType() == typeof(Tasks)) return (Tasks)c;
  72.             else return null;
  73.         }
  75.         private void Button_PointerPressed(object sender, Windows.UI.Xaml.Input.PointerRoutedEventArgs e)
  76.         {
  77.             if (IsList == Mode.True)
  78.             {
  79.                 isPressed = true;
  80.                 Tasks.SelectedButton.isPressed = false;
  81.                 Tasks.SelectedButton = this;
  82.                 GetTopParent().TaskListChanged(this);
  83.             }
  84.             else
  85.             {
  86.                 Button b = new Button
  87.                 {
  88.                     Margin = Margin,
  89.                     VerticalAlignment = VerticalAlignment,
  90.                     Width = Width,
  91.                     Height = Height,
  92.                     HorizontalAlignment = HorizontalAlignment,
  93.                     ImageOnly = Mode.False,
  94.                     IsList = Mode.True
  95.                 };
  96.                 Margin = new Windows.UI.Xaml.Thickness(10, b.Margin.Bottom + 10, 10, 10);
  97.                 GetTopParent().AddButton(b);
  98.             }
  99.         }
  101.         private void Button_PointerExited(object sender, Windows.UI.Xaml.Input.PointerRoutedEventArgs e)
  102.         {
  103.             isHover = false;
  104.         }
  106.         private void Button_PointerEntered(object sender, Windows.UI.Xaml.Input.PointerRoutedEventArgs e)
  107.         {
  108.             isHover = true;
  109.         }
  111.         private Windows.UI.Color ButtonColor()
  112.         {
  113.             if (Theme.IsLight()) return isHover || isPressed ? LightHover : Background;
  114.             return isHover || isPressed ? DarkHover : Background;
  115.         }
  117.         // OnPaint
  119.     }
  121.     internal class ImageOnlySettings
  122.     {
  123.         [Serializable]
  124.         internal enum Mode
  125.         {
  126.             True,
  127.             False
  128.         }
  129.     }
  130. }
  1. using Windows.UI;
  2. using Windows.UI.Xaml.Input;
  4. namespace esheets_trafalgareng
  5. {
  6.     public sealed class PersonalButton : Windows.UI.Xaml.Controls.Button
  7.     {
  8.         private static new Color Background
  9.         {
  10.             get
  11.             {
  12.                 if (Theme.IsLight()) return Theme.LightSide;
  13.                 else return Theme.DarkSide;
  14.             }
  15.         }
  16.         private static new Color Foreground
  17.         {
  18.             get
  19.             {
  20.                 if (Theme.IsLight()) return Color.FromArgb(0, 0, 0, 0);
  21.                 else return Color.FromArgb(0, 255, 255, 255);
  22.             }
  23.         }
  24.         private static Color SecondaryForeground
  25.         {
  26.             get
  27.             {
  28.                 if (Theme.IsLight()) return Color.FromArgb(0, 0, 0, 0);
  29.                 else return Color.FromArgb(0, 207, 207, 207);
  30.             }
  31.         }
  32.         private static readonly Color LightHover = Theme.LightButtonHover;
  33.         private static readonly Color DarkHover = Theme.DarkButtonHover;
  35.         /*private static new readonly int FontHeight = 10;
  36.         private static readonly Font NameFont = new Font("Roboto", FontHeight, FontStyle.Bold);
  37.         private static readonly Font EmailFont = new Font("Roboto", FontHeight - 1);*/
  39.         private bool isHover = false;
  40.         private string name;
  41.         private string email;
  43.         public PersonalButton()
  44.         {
  45.             DefaultStyleKey = typeof(PersonalButton);
  46.             AddEvents();
  47.         }
  49.         private void AddEvents()
  50.         {
  51.             PointerEntered += OnPointerEntered;
  52.             PointerExited += OnPointerExited;
  53.             PointerPressed += OnPointerPressed;
  54.         }
  56.         private void OnPointerPressed(object sender, PointerRoutedEventArgs e)
  57.         {
  59.         }
  61.         public void OnPointerExited(object sender, PointerRoutedEventArgs e)
  62.         {
  63.             isHover = false;
  64.         }
  66.         public void OnPointerEntered(object sender, PointerRoutedEventArgs e)
  67.         {
  68.             isHover = true;
  69.         }
  71.         private Color ButtonColor()
  72.         {
  73.             if (Theme.IsLight()) return isHover ? LightHover : Background;
  74.             else return isHover ? DarkHover : Background;
  75.         }
  77.         // OnPaint
  80.     }
  81. }

Here's 2 other classes that I use, in case they are needed:

  1. using System;
  2. using Windows.UI;
  3. using System.Runtime.InteropServices;
  4. using Windows.UI.ViewManagement;
  6. namespace esheets_trafalgareng
  7. {
  8.     public class Theme
  9.     {
  10.         internal static readonly int Light = 0;
  11.         internal static readonly int Dark = 1;
  13.         internal static readonly Color LightSide = Color.FromArgb(0, 208, 208, 208);
  14.         internal static readonly Color LightTask = Color.FromArgb(0, 238, 239, 243);
  15.         internal static readonly Color LightButtonHover = Color.FromArgb(0, 201, 201, 201);
  16.         internal static Color LightMain
  17.         {
  18.             get
  19.             {
  20.                 if (Tasks.SelectedButton.Name == "myTasks") return Color.FromArgb(0, 98, 118, 196);
  21.                 else if (Tasks.SelectedButton.Name == "assignedToMe") return Color.FromArgb(0, 213, 241, 229);
  22.                 else return Color.FromArgb(0, 153, 51, 102);
  23.             }
  24.         }
  26.         internal static readonly Color DarkSide = Color.FromArgb(0, 34, 34, 34);
  27.         internal static readonly Color DarkTask = Color.FromArgb(0, 42, 42, 42);
  28.         internal static readonly Color DarkButtonHover = Color.FromArgb(0, 50, 50, 50);
  29.         internal static readonly Color DarkMain = Color.FromArgb(0, 28, 28, 28);
  31.         internal static bool IsLight()
  32.         {
  33.             if (Options.Theme == Light)
  34.             {
  35.                 return true;
  36.             }
  37.             else if (Options.Theme == Dark)
  38.             {
  39.                 return false;
  40.             }
  41.             else
  42.             {
  43.                 if (UsingLightTheme())
  44.                 {
  45.                     return true;
  46.                 }
  47.                 else
  48.                 {
  49.                     return false;
  50.                 }
  51.             }
  52.         }
  54.         internal static bool UsingLightTheme()
  55.         {
  56.             UISettings DefaultTheme = new UISettings();
  57.             string uiTheme = DefaultTheme.GetColorValue(UIColorType.Background).ToString();
  59.             return uiTheme == "#FFFFFFFF";
  60.         }
  62.         [DllImport("dwmapi.dll")]
  63.         private static extern int DwmSetWindowAttribute(IntPtr hwnd, int attr, ref int attrValue, int attrSize);
  65.         private const int DWMWA_USE_IMMERSIVE_DARK_MODE_BEFORE_20H1 = 19;
  66.         private const int DWMWA_USE_IMMERSIVE_DARK_MODE = 20;
  68.         internal static bool UseImmersiveDarkMode(IntPtr handle, bool enabled)
  69.         {
  70.             if (IsWindows10OrGreater(17763))
  71.             {
  72.                 var attribute = DWMWA_USE_IMMERSIVE_DARK_MODE_BEFORE_20H1;
  73.                 if (IsWindows10OrGreater(18985))
  74.                 {
  75.                     attribute = DWMWA_USE_IMMERSIVE_DARK_MODE;
  76.                 }
  78.                 int useImmersiveDarkMode = enabled ? 1 : 0;
  79.                 return DwmSetWindowAttribute(handle, attribute, ref useImmersiveDarkMode, sizeof(int)) == 0;
  80.             }
  82.             return false;
  83.         }
  85.         private static bool IsWindows10OrGreater(int build = -1)
  86.         {
  87.             return Environment.OSVersion.Version.Major >= 10 && Environment.OSVersion.Version.Build >= build;
  88.         }
  89.     }
  90. }
  1. using System;
  2. using System.Collections.Generic;
  3. using System.Linq;
  4. using System.Text;
  5. using System.Threading.Tasks;
  7. namespace esheets_trafalgareng
  8. {
  9.     internal class Options
  10.     {
  11.         public static int Theme { get; set; } = 3;
  12.         public static bool IsLoggedIn { get; set; }
  13.     }
  14. }

答案1

得分: 0

问题是我将组件定义为C#类而不是用户控件。如果其他人遇到此问题，请确保为您的组件有一个.xaml文件和一个.cs.xaml文件！

英文:

After some research, I figured out that the problem was that I was defining my components as C# classes rather than User Controls. If anyone else comes across this issue, make sure you have a .xaml and a .cs.xaml file for your components!

huangapple
  • 本文由 发表于 2023年6月16日 01:38:17
  • 转载请务必保留本文链接：https://go.coder-hub.com/76484212.html
  • c#
  • uwp
  • xaml
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