CODEWITHSUNDEEP
c#methodsvar
vhoyer
vhoyer

Reputation: 784

var like variable outside methods

The title may not be so expecific, sorry for that. I'd like to know if there is a type of variable(or class or something) that works like the type "var" but outside a method, inside the class, I want to use it as a parameter like that:

public class ConfigParam
{
    string paramName;
    var paramValue;

    public ConfigParam(string name, var value)
    {
        paramName = name;
        paramValue = value;
    }

    public string ParamName
    {
        get { return paramName; }
        set { paramName = value; }
    }

    public var ParamValue
    {
        get { return paramValue; }
        set { paramValue = value; }
    }
}

but the "var" type don't work outside method. Can anyone help me?

Upvotes: 1

Views: 500

Answers (2)

Konstantin Zadiran
Konstantin Zadiran

Reputation: 1541

You can use object 

public class ConfigParam
{
    string paramName;
    object paramValue;

    public ConfigParam(string name, object value)
    {
        paramName = name;
        paramValue = value;
    }

    public string ParamName
    {
        get { return paramName; }
        set { paramName = value; }
    }

    public object ParamValue
    {
        get { return paramValue; }
        set { paramValue = value; }
    }
}

No type safety, but it will be working.

Upvotes: 1

Martin Liversage
Martin Liversage

Reputation: 106926

You need to use generics:

public class ConfigParam<T>
{
    string paramName;
    T paramValue;

    public ConfigParam(string name, T value)
    {
        paramName = name;
        paramValue = value;
    }

    public string ParamName
    {
        get { return paramName; }
        set { paramName = value; }
    }

    public T ParamValue
    {
        get { return paramValue; }
        set { paramValue = value; }
    }
}

If you need to do more than store the type T you can apply generic constraints.

Upvotes: 3

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