How can I override get and set methods for all properties in a class?

Question

I have several classes similar to the ones below, and I need to do some checks in the get method and custom set methods. Adding code to each get and set method makes everything really confusing.

Is there a way to override the get and set methods for all properties in the entire class?

public class Test
{
    private DataRow _dr;
    public Test()
    {
        _dr = GetData();
    }

    public string Name
    {
        get { return _dr[MethodBase.GetCurrentMethod().Name.Substring(4)].ToString(); }
        set
        {
            VerifyAccess(MethodBase.GetCurrentMethod().Name.Substring(4), this.GetType().Name);
            _dr[MethodBase.GetCurrentMethod().Name.Substring(4)] = value;
        }
    }

    public string Description
    {
        get { return _dr[MethodBase.GetCurrentMethod().Name.Substring(4)].ToString(); }
        set
        {
            VerifyAccess(MethodBase.GetCurrentMethod().Name.Substring(4), this.GetType().Name);
            _dr[MethodBase.GetCurrentMethod().Name.Substring(4)] = value;
        }
    }

    public string DescriptionUrl
    {
        get { return _dr[MethodBase.GetCurrentMethod().Name.Substring(4)].ToString(); }
        set
        {
            VerifyAccess(MethodBase.GetCurrentMethod().Name.Substring(4), this.GetType().Name);
            _dr[MethodBase.GetCurrentMethod().Name.Substring(4)]= value;
        }
    }


    private void VerifyAccess(string propertyname, string classname)
    {
        //some code to verify that the current user has access to update the property
        //Throw exception
    }

    private DataRow GetData()
    {
        //Some code to pull the data from the database
    }
}

Answer 1

I think you need Proxyfor your class, read about Proxy PatternandDynamic Proxies

Answer 2

Not directly, there is no way to do this using the compiler only. You will need to generate your entire binary file and then process it using an external tool.

; , .

Answer 3

. - ( ), . - . , ( , ... .. get , x). ( - ), / , .

, Mono-Cecil .

( , IL-),

Answer 4

get/set, . , , / .

Smth :

public string Name
{
    get { return GetProperty(MethodBase.GetCurrentMethod()); }
    set
    {
        SetProperty(MethodBase.GetCurrentMethod(), value);
    }
}

private string GetProperty(MethodBase method)
{
    return _dr[method.Name.Substring(4)].ToString();
}

private void SetProperty(MethodBase method, string value)
{
    string methodName = method.Name.Substring(4);
    VerifyAccess(methodName , this.GetType().Name);
    _dr[methodName] = value;
}

Answer 5

, . obj.PropA.Value = obj.PropB.Value + 1 - . , .

// attribute -- bind later in central spot with annotation application
[MyCustomProp(4)] CustProp<int> Age;

// direct -- explicit binding, could also post-process dynamically
CustProp<int> Age = new CustProp<int>(4, this);

, , , TT4, .

"KISS": -)

Answer 6

, - .

Now I'm looking for an answer ... The best idea I had was to define all the properties you want to check as a generic class. For instance:

public class Foo {
    public String Name { 
        get{ return _Name.value; }
        set{ _Name.value = value; }
    }
    private Proxy<String> _Name;

    static void main(String[] args) {
        Foo f = new Foo();

        //will go through the logic in Proxy.
        f.Name = "test"; 
        String s = f.Name;
    }
}
public class Proxy<T> {
    public T value { 
        get { 
            //logic here
            return _this; 
        } set {
            //logic here
            _this = value;
        } 
    }
    private T _this;
}