我有一个存储类型水果的对象的基本属性：

I have a basic property that stores an object of type Fruit:

Fruit food;
public Fruit Food
{
    get {return this.food;}
    set
    {
    	this.food= value;
    	this.RefreshDataBindings();
    }
}

public void RefreshDataBindings()
{
    this.textBox.DataBindings.Clear();
    this.textBox.DataBindings.Add("Text", this.Food, "Name");
}

所以我设置 this.Food 之外的形式，然后将其显示在用户界面。

So I set this.Food outside the form and then it shows up in the UI.

如果我修改 this.Food ，它更新正确。如果我修改了用户界面编程，如：

If I modify this.Food, it updates correctly. If I modify the UI programmatically like:

this.textBox.Text =NewFruit，它不更新this.Food。

this.textBox.Text = "NewFruit", it doesn't update this.Food.

为什么会这样？我还实施 INotifyPropertyChanged的的Fruit.Name，但还是一样。

Why could this be? I also implemented INotifyPropertyChanged for Fruit.Name, but still the same.

推荐答案

我建议你实现INotifyPropertyChanged和更改绑定code到这一点：

I Recommend you implement INotifyPropertyChanged and change your databinding code to this:

this.textBox.DataBindings.Add("Text",
                                this.Food,
                                "Name",
                                false,
                                DataSourceUpdateMode.OnPropertyChanged);

这会解决它。