CODEWITHSUNDEEP
c#method-invocation
Anindya
Anindya

Reputation: 9

Invoke Methods having Different Parameters

I am facing one issue in Invoking different methods which are having different types of parameter. For eg. I have 3 methods A, B, C with parameters as follows.

A(string text, int num)

B(bool type, int num2)

C(string text2, boolean type2, int num3)

Now how to invoke these three methods one by one? The method names are fetched as string and stored in an array, and after storing them, the methods needs to be invoked using For Each loop.

enter image description here

Upvotes: 0

Views: 258

Answers (1)

Guy
Guy

Reputation: 50819

You can keep in Dictionary the method names and parameters as string and object[]

Dictionary<string, object[]> methodsInfo = new Dictionary<string, object[]>
{
    { "A", new object[] { "qwe", 4 }},
    { "B", new object[] { true, 5 }},
    { "C", new object[] { "asd", false, 42 }}
};

And invoke them using Invokefrom MethodInfo

foreach (KeyValuePair<string, object[]> methodInfo in methodsInfo)
{
    GetType().GetMethod(methodInfo.Key).Invoke(this, methodInfo.Value);
}

If the methods are in another class you invoke them like this

Type classType = Type.GetType("namespace.className");
object classObject = classType.GetConstructor(Type.EmptyTypes).Invoke(new object[] { });

foreach (KeyValuePair<string, object[]> methodInfo in methodsInfo)
{
    classType.GetMethod(methodInfo.Key).Invoke(classObject, methodInfo.Value);
}

Note: GetConstructor(Type.EmptyTypes) is for empty constructor, for parameterized constructor (say with int) use GetConstructor(new[] { typeof(int) }).Invoke(new object[] { 3 }

Upvotes: 2

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