C# 嵌套用户控件绑定不适用于嵌套属性

我在C#win应用程序中有三个用户控件；主用户称为UCReferenceTecnico，它只包含具有嵌套用户控件UcIndirizzo的UcContatto。 UcContatto有一个名为ContattoMV的模型视图，UcIndirizzo有一个名为INDIRIZOMV的模型视图

UcContatto模型视图具有一个属性和一个嵌套的INDIRIZOMV属性；它们是这样做的：

public class ContattoMV:INotifyPropertyChanged
{

    string _NOME_CONTATTO;
    [HeaderAttribute("Nome contatto", true, 2)]
    public string NOME_CONTATTO
    {
        get { return _NOME_CONTATTO; }
        set
        {
            _NOME_CONTATTO = value;
            NotifyPropertyChanged("NOME_CONTATTO");
        }
    }
    public IndirizzoMV Indirizzo
    {
        get { return _Indirizzo; }
        set
        {
            _Indirizzo = value;
            NotifyPropertyChanged("Indirizzo");
        }
    }
    public void NotifyPropertyChanged(string aiPropertyName)
    {
        if (PropertyChanged != null)
        {
            PropertyChanged(this, new PropertyChangedEventArgs(aiPropertyName));
        }
    }
}
public class IndirizzoMV:INotifyPropertyChanged
{
    public string TOPONIMO
    {
        get { return _TOPONIMO; }
        set
        {
            _TOPONIMO = value;
            NotifyPropertyChanged("TOPONIMO");
        }
    }
    public void NotifyPropertyChanged(string aiPropertyName)
    {
        if (PropertyChanged != null)
        {
            PropertyChanged(this, new PropertyChangedEventArgs(aiPropertyName));
        }
    }
}

[Bindable(true)]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
public IndirizzoMV BsIndirizzo
{
    get
    {
        return (IndirizzoMV)_bsIndirizzo.DataSource;
    }
    set
    {
        if (value == null)
        {
            return;
        }
        _bsIndirizzo.DataSource = value;
    }
}

this.txtToponimo.DataBindings.Add(new System.Windows.Forms.Binding("EditValue", this._bsIndirizzo, "TOPONIMO", true, System.Windows.Forms.DataSourceUpdateMode.OnPropertyChanged));

[Bindable(true)]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
public ContattoMV BsContatto
{
    get
    {
        return (ContattoMV)_bsContatto.DataSource;
    }
    set
    {
        if (value == null)
        {
            return;
        }
        _bsContatto.DataSource = value;
    }
}

所有属性都在UcContatto和UcIndirizzo中绑定，以便通过以下方式进行控制： 在UcContatto中：

this.txtNome.DataBindings.Add(new System.Windows.Forms.Binding("EditValue", this._bsContatto, "NOME_CONTATTO", true, System.Windows.Forms.DataSourceUpdateMode.OnPropertyChanged));

要绑定嵌套用户控件UcIndirizzo，请执行以下操作：

this.ucIndirizzo1.DataBindings.Add(new System.Windows.Forms.Binding("BsIndirizzo", this._bsContatto, "Indirizzo", true));

其中bsContatto为ContattoMV类型，BsIndirizzo为可绑定属性，通过以下方式完成：

public class ContattoMV:INotifyPropertyChanged
{

    string _NOME_CONTATTO;
    [HeaderAttribute("Nome contatto", true, 2)]
    public string NOME_CONTATTO
    {
        get { return _NOME_CONTATTO; }
        set
        {
            _NOME_CONTATTO = value;
            NotifyPropertyChanged("NOME_CONTATTO");
        }
    }
    public IndirizzoMV Indirizzo
    {
        get { return _Indirizzo; }
        set
        {
            _Indirizzo = value;
            NotifyPropertyChanged("Indirizzo");
        }
    }
    public void NotifyPropertyChanged(string aiPropertyName)
    {
        if (PropertyChanged != null)
        {
            PropertyChanged(this, new PropertyChangedEventArgs(aiPropertyName));
        }
    }
}
public class IndirizzoMV:INotifyPropertyChanged
{
    public string TOPONIMO
    {
        get { return _TOPONIMO; }
        set
        {
            _TOPONIMO = value;
            NotifyPropertyChanged("TOPONIMO");
        }
    }
    public void NotifyPropertyChanged(string aiPropertyName)
    {
        if (PropertyChanged != null)
        {
            PropertyChanged(this, new PropertyChangedEventArgs(aiPropertyName));
        }
    }
}

[Bindable(true)]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
public IndirizzoMV BsIndirizzo
{
    get
    {
        return (IndirizzoMV)_bsIndirizzo.DataSource;
    }
    set
    {
        if (value == null)
        {
            return;
        }
        _bsIndirizzo.DataSource = value;
    }
}

this.txtToponimo.DataBindings.Add(new System.Windows.Forms.Binding("EditValue", this._bsIndirizzo, "TOPONIMO", true, System.Windows.Forms.DataSourceUpdateMode.OnPropertyChanged));

[Bindable(true)]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
public ContattoMV BsContatto
{
    get
    {
        return (ContattoMV)_bsContatto.DataSource;
    }
    set
    {
        if (value == null)
        {
            return;
        }
        _bsContatto.DataSource = value;
    }
}

在UcIndirizzo中，properites以以下方式具有约束力：

public class ContattoMV:INotifyPropertyChanged
{

    string _NOME_CONTATTO;
    [HeaderAttribute("Nome contatto", true, 2)]
    public string NOME_CONTATTO
    {
        get { return _NOME_CONTATTO; }
        set
        {
            _NOME_CONTATTO = value;
            NotifyPropertyChanged("NOME_CONTATTO");
        }
    }
    public IndirizzoMV Indirizzo
    {
        get { return _Indirizzo; }
        set
        {
            _Indirizzo = value;
            NotifyPropertyChanged("Indirizzo");
        }
    }
    public void NotifyPropertyChanged(string aiPropertyName)
    {
        if (PropertyChanged != null)
        {
            PropertyChanged(this, new PropertyChangedEventArgs(aiPropertyName));
        }
    }
}
public class IndirizzoMV:INotifyPropertyChanged
{
    public string TOPONIMO
    {
        get { return _TOPONIMO; }
        set
        {
            _TOPONIMO = value;
            NotifyPropertyChanged("TOPONIMO");
        }
    }
    public void NotifyPropertyChanged(string aiPropertyName)
    {
        if (PropertyChanged != null)
        {
            PropertyChanged(this, new PropertyChangedEventArgs(aiPropertyName));
        }
    }
}

[Bindable(true)]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
public IndirizzoMV BsIndirizzo
{
    get
    {
        return (IndirizzoMV)_bsIndirizzo.DataSource;
    }
    set
    {
        if (value == null)
        {
            return;
        }
        _bsIndirizzo.DataSource = value;
    }
}

this.txtToponimo.DataBindings.Add(new System.Windows.Forms.Binding("EditValue", this._bsIndirizzo, "TOPONIMO", true, System.Windows.Forms.DataSourceUpdateMode.OnPropertyChanged));

[Bindable(true)]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
public ContattoMV BsContatto
{
    get
    {
        return (ContattoMV)_bsContatto.DataSource;
    }
    set
    {
        if (value == null)
        {
            return;
        }
        _bsContatto.DataSource = value;
    }
}

其中bsIndirizzo是IndirizzoMV的类型。 在UcContatto中，要将属性扩展到主用户控件，我将以以下方式使用另一个可绑定属性：

public class ContattoMV:INotifyPropertyChanged
{

    string _NOME_CONTATTO;
    [HeaderAttribute("Nome contatto", true, 2)]
    public string NOME_CONTATTO
    {
        get { return _NOME_CONTATTO; }
        set
        {
            _NOME_CONTATTO = value;
            NotifyPropertyChanged("NOME_CONTATTO");
        }
    }
    public IndirizzoMV Indirizzo
    {
        get { return _Indirizzo; }
        set
        {
            _Indirizzo = value;
            NotifyPropertyChanged("Indirizzo");
        }
    }
    public void NotifyPropertyChanged(string aiPropertyName)
    {
        if (PropertyChanged != null)
        {
            PropertyChanged(this, new PropertyChangedEventArgs(aiPropertyName));
        }
    }
}
public class IndirizzoMV:INotifyPropertyChanged
{
    public string TOPONIMO
    {
        get { return _TOPONIMO; }
        set
        {
            _TOPONIMO = value;
            NotifyPropertyChanged("TOPONIMO");
        }
    }
    public void NotifyPropertyChanged(string aiPropertyName)
    {
        if (PropertyChanged != null)
        {
            PropertyChanged(this, new PropertyChangedEventArgs(aiPropertyName));
        }
    }
}

[Bindable(true)]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
public IndirizzoMV BsIndirizzo
{
    get
    {
        return (IndirizzoMV)_bsIndirizzo.DataSource;
    }
    set
    {
        if (value == null)
        {
            return;
        }
        _bsIndirizzo.DataSource = value;
    }
}

this.txtToponimo.DataBindings.Add(new System.Windows.Forms.Binding("EditValue", this._bsIndirizzo, "TOPONIMO", true, System.Windows.Forms.DataSourceUpdateMode.OnPropertyChanged));

[Bindable(true)]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
public ContattoMV BsContatto
{
    get
    {
        return (ContattoMV)_bsContatto.DataSource;
    }
    set
    {
        if (value == null)
        {
            return;
        }
        _bsContatto.DataSource = value;
    }
}

要在主控件UCReferenceTecnico中初始化usercontrol，请执行以下操作：

this.ucContatto1.BsContatto = new ContattoMV();

如果我在txtNome中设置值，则当我更改usercontrol中的值时，NOME_CONTATTO属性将被赋值（在设置属性中输入断点） 如果我在txttobonimo中更改ucIndirizzo中的值，则不会对任何属性进行赋值

我的错误在哪里？

---

非常感谢

我想说，您的错误是没有使用XAML定义您的

绑定

，但我想您可能有一些合理的理由。由于所有的外来类型和属性名称，我发现很难理解您的问题，因此虽然我认为我无法直接帮助您解决问题，但我可以提供以下简单建议：

如果要将数据绑定到父视图模型中的属性，只需使用

相对资源绑定

：

假设这是在父视图模型中：

public string NOME_CONTATTO
{
    get { return _NOME_CONTATTO; }
    set
    {
        _NOME_CONTATTO = value;
        NotifyPropertyChanged("NOME_CONTATTO");
    }
}

您可以从任何子视图直接将数据绑定到它，如下所示：

<TextBox Text="{Binding DataContext.NOME_CONTATTO, 
    RelativeSource={RelativeSource AncestorType={x:Type Local:ParentView}}}" ... />

或者，如果您只想在视图模型之间传递一些值，可以使用

delegate

s。。。查看我对问题的回答，了解如何做到这一点