小编点评

**Code:** ```csharp using Avalonia.Controls; public partial class MainWindow : Window { protected override void OnInitialized() { // Disable title bar this.TitleBar.Visibility = false; // Set decorations to None this.SetStyle(Control.ControlStyles.All, "WindowStyle", "None"); // Set extended client area to decorations hint this.ExtendClientAreaToDecorationsHint = true; // Set extended client area chrome hints this.ExtendClientAreaChromeHints = false; // Set extended client area title bar height hint to -1 this.ExtendClientAreaTitleBarHeightHint = -1; // Set system decorations to None this.SystemDecorations = null; } } ``` **Output (Without Title Bar):** ``` ``` **Output (With Decorations):** ``` ``` **Note:** * You can adjust the `Window.TitleBar` property to display a custom title bar. * You can customize the `Window.Content` property to set the content of the window. * The `ExtendClientAreaToDecorationsHint` and `ExtendClientAreaChromeHints` properties can be set to `true` or `false` to enable or disable decorations and chrome hints, respectively. * The `ExtendClientAreaTitleBarHeightHint` property can be set to a negative value to disable the title bar height hint. * The `SystemDecorations` property can be set to `None` to disable system decorations.

正文

AvaloniaUI 取消标题栏，无边框无最大最小化，

创建一个Window控件 并且在Window中添加以下代码

ExtendClientAreaToDecorationsHint="True"
ExtendClientAreaChromeHints="NoChrome"
ExtendClientAreaTitleBarHeightHint="-1"
SystemDecorations="None"

效果如图：

运行效果如图：