vscode开发avalonia

news2024/11/16 12:02:22

安装

安装.net 8
安装avalonia模板

dotnet new install Avalonia.Templates

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创建项目

dotnet new avalonia.app -o GetStartedApp

安装c# dev kit插件和Avalonia for VSCode Community
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dotnet run运行

修改代码

MainWindow.axaml

<Window xmlns="https://github.com/avaloniaui"
        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"
        mc:Ignorable="d" d:DesignWidth="200" d:DesignHeight="450"
        x:Class="GetStartedApp.MainWindow"
        Title="GetStartedApp">
    <TextBlock Text="My Text" HorizontalAlignment="Center" VerticalAlignment="Center"/>
</Window>

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继续修改代码

<Window xmlns="https://github.com/avaloniaui"
        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"
        mc:Ignorable="d" d:DesignWidth="200" d:DesignHeight="450"
        x:Class="GetStartedApp.MainWindow"
        Title="GetStartedApp">
     <Button HorizontalAlignment="Center">Calculate</Button>
</Window>

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增加布局

<Window xmlns="https://github.com/avaloniaui"
        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"
        mc:Ignorable="d" d:DesignWidth="200" d:DesignHeight="450"
        x:Class="GetStartedApp.MainWindow"
        Title="GetStartedApp">
  <StackPanel>
    <Border Margin="5" 
        CornerRadius="10"
        Background="LightBlue">
        <TextBlock Margin="5"
          FontSize="24" 
          HorizontalAlignment="Center"
          Text="温度转换器">
        </TextBlock>
    </Border>
    <Grid ShowGridLines="True"  Margin="5" 
      ColumnDefinitions="120, 100" 
      RowDefinitions="Auto, Auto, Auto">
        <Label Grid.Row="0" Grid.Column="0" Margin="10">Celsius</Label>
        <TextBox Name="celsius" Grid.Row="0" Grid.Column="1" Margin="0 5" Text="0"/>
        <Label Grid.Row="1" Grid.Column="0" Margin="10">Fahrenheit</Label>
        <TextBox Name="fahrenheit" Grid.Row="1"  Grid.Column="1" Margin="0 5" Text="0"/>
        <Button Grid.Row="2" Grid.Column="1" Margin="0 5" Click="ButtonClicked">Calculate</Button>
    </Grid>  
  </StackPanel>
</Window>

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绑定点击事件，修改MainWindow.axaml.cs

public void ButtonClicked(object source, RoutedEventArgs args)
{
   Debug.WriteLine("Click!");
   Debug.WriteLine($"Click! Celsius={celsius.Text}");
   if (double.TryParse(celsius.Text, out double C))
   {
       var F = C * (9d / 5d) + 32;
       fahrenheit.Text = F.ToString("0.0");
   }
   else
   {
       celsius.Text = "0";
       fahrenheit.Text = "0";
   }
}