MVVM构造函数学习



嗨,我正在学习C#WPF MVVM。因此,我有一个具有以下构造函数的类

型号类别

public BillMetaData(bool isKey, string attName, int attType, bool isRequired, int attLoc, int attLength, int isDecimal, int attAlignment) {
    _isKey = isKey;
    _attName = attName;
    _attType = attType;
    _isRequired = isRequired;
    _attLoc = attLoc;
    _attLength = attLength;
    _isDecimal = isDecimal;
    _attAlignment = attAlignment; }

现在我有了我的ModelView,它还没有与数据库连接,我只是想了解模式。

    bool isKey = true;
    string attName = "Name";
    int attType = 1;
    bool isRequired = true;
    int attLoc = 1;
    int attLength = 30;
    int isDecimal = 1;
    int attAlignment = 1;
    private BillMetaData obj = new BillMetaData( isKey, attName, attType, isRequired, attLoc, attLength, isDecimal, attAlignment);
    public string TxtCustomerName
    {
        get { return obj.attName; }
        set { obj.attName = value; }
    }   

然而,当创建BillMetaData时,我得到了以下错误

a field initializer cannot reference the nonstatic field

在我的ViewModel文件夹中,我引用我的模型如下

using Project.Model;

我做错了什么?

不能在字段初始值设定项中使用实例变量调用参数化构造函数。因此,在字段初始化程序中根本不能使用实例变量

如果您需要像那样调用构造函数,请在方法中执行(例如,您的构造函数或Init例程)。

public MyViewModel()
{
    private BillMetaData obj = new BillMetaData( isKey, attName, attType, isRequired, attLoc, attLength, isDecimal, attAlignment);   
}

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