c# - 如何在 WPF 中绑定(bind)单个对象实例？

Question

我是WPF新手，找了两天无果。我有一个 WPF 窗口，其中包含多个文本框控件和一个具有某些属性的对象。该对象在其构造函数中传递到我的 WPF 窗口的代码隐藏:

public partial class SettingsDialog : Window
{
    public SettingsObject AppSettings
    {
        get;
        set;
    }

    public SettingsDialog(SettingsObject settings)
    {
        this.AppSettings = settings;
        InitializeComponent();
    }
}

SettingsObject 看起来像这样(为清楚起见进行了简化):

public class SettingsObject
{
    public string Setting1 { get; set; }
    public string Setting2 { get; set; }
    public string Setting3 { get; set; }

    public SettingsObject()
    {
        this.Setting1 = "ABC";
        this.Setting2 = "DEF";
        this.Setting3 = "GHI";
    }
}

还有我的 WPF 窗口(简化版):

<Window x:Class="MyProgram.SettingsDialog" 
            xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
            xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
            DataContext="{Binding Source=AppSettings}">
    <Grid>
        <TextBox Name="Setting1Textbox" Text="{Binding Path=Setting1}"></TextBox>
        <TextBox Name="Setting2Textbox" Text="{Binding Path=Setting2}"></TextBox>
        <TextBox Name="Setting3Textbox" Text="{Binding Path=Setting3}"></TextBox>
    </Grid>
</Window>

在这种情况下如何实现双向绑定(bind)？我已经尝试了您在上面看到的(以及更多)，但没有任何效果!

Answer 1

您是否已将窗口的 DataContext 属性设置为您的 AppSettings 实例？

public SettingsDialog(SettingsObject settings)
{

    InitializeComponent();

    //While this line should work above InitializeComponent,
    // it's a good idea to put your code afterwards.
    this.AppSettings = settings;

    //This hooks up the windows data source to your object.
    this.DataContext = settings;
}