C# Avalonia 19- DataBinding- BindProductObject

（之后不再重复申明）19章中，所有例子都基于https://www.cnblogs.com/dalgleish/p/19331015

BindProductObject.axaml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"
        Height="300" Width="300"
        x:Class="AvaloniaUI.BindProductObject"
        xmlns:local ="using:AvaloniaUI.Demos.Book._19.StoreDatabase"
        Title="BindProductObject">
    
    <Grid RowDefinitions="auto,*">

        <!-- 顶部输入区 -->
        <Grid ColumnDefinitions="auto,*,auto">
            <TextBlock Margin="7" Text="Product ID:"/>
            <TextBox x:Name="txtID" Margin="5" Grid.Column="1" Text="356"/>
            <Button Grid.Column="2" Margin="5" Padding="2"
                    Click="cmdGetProduct_Click"
                    Content="Get Product"/>
        </Grid>

        <!-- 产品详情 -->
        <Border Grid.Row="1" Padding="7" Margin="7" Background="LightSteelBlue">
            <Grid x:Name="gridProductDetails"
                  ColumnDefinitions="auto,*"
                  RowDefinitions="auto,auto,auto,auto,*" x:DataType="local:Product">

                <TextBlock Margin="7" Text="Model Number:"/>
                <TextBox Margin="5" Grid.Column="1"
                         Text="{Binding ModelNumber}"/>

                <TextBlock Margin="7" Grid.Row="1" Text="Model Name:"/>
                <TextBox Margin="5" Grid.Row="1" Grid.Column="1"
                         Text="{Binding ModelName}"/>

                <TextBlock Margin="7" Grid.Row="2" Text="Unit Cost:"/>
                <TextBox Margin="5" Grid.Row="2" Grid.Column="1"
                         Text="{Binding UnitCost}"/>

                <TextBlock Margin="7,7,7,0" Grid.Row="3" Text="Description:"/>
                <ScrollViewer Grid.Row="4" Grid.Column="0" Grid.ColumnSpan="2">
                    <TextBox Margin="7"
                             TextWrapping="Wrap"
                             AcceptsReturn="True"
                             Text="{Binding Description}"/>
                </ScrollViewer>
            </Grid>
        </Border>
    </Grid>
</Window>

BindProductObject.axaml.cs代码

using Avalonia;
using Avalonia.Controls;
using Avalonia.Interactivity;
using Avalonia.Markup.Xaml;
using AvaloniaUI.Demos.Book._19.StoreDatabase;
using Shares.Avalonia;
using System;
using System.Data;

namespace AvaloniaUI;

public partial class BindProductObject : Window
{
    StoreDb1 db1 = new StoreDb1();

    public BindProductObject()
    {
        InitializeComponent();
    }

    private void cmdGetProduct_Click(object? sender, RoutedEventArgs e)
    {
        int ID;
        if (Int32.TryParse(txtID.Text, out ID))
        {
            try
            {
                gridProductDetails.DataContext = db1.GetProduct(ID);
            }
            catch
            {
                Console.WriteLine("Error contacting database.");
            }
        }
        else
        {
            Console.WriteLine("Invalid ID.");
        }
    }
}

运行效果