How to change the value of a property given its name

[tahishae]

In my program I have some classes where data is stored. For example

Class1.alfa.dado = 66;
Class1.beta.dado = 56;
Class1.gama.dado = 37;

The user will select in a ComboBox one of the options you want to change, in this ComboBox are the strings "alpha", "beta" and "gamma".

So I need to run a function that does more or less so

void change (string alterar)
{
    Class1.(alterar).dado = 7;
}

How to use this "change" string to access the variable?

A solution would be to use switch. But the problem is that the functions are not so simple, are big codes, and with the switch gets very repetitive and whenever I need to change something I have to move in a lot of places. I'd like to do that more automatically.

[Cleofas]

You can use a combination of:

• PropertyInfo: Allows observation and manipulation of characteristics of types;
• Convert.ChangeType: Allows change of types who implement IConvertible between formats during runtime.

For example, your instance Class1.alfa could have the property dado dynamically changed as follows:

string propriedade = "dado";
string valor = "66";
PropertyInfo propertyInfo = Class1.alfa.GetType().GetProperty(propriedade);

propertyInfo.SetValue(Class1.alfa, Convert.ChangeType(valor, propertyInfo.PropertyType), null);