Method Invoke with complex parameter dynamically (C#)

Question

I want to invoke method1 in class1 dynamically. I don't want to use Prm class directly. How to send p parameter dynamically. Here is a way but i could'nt manage

namespace WindowsFormsApplicationMethodCall
{
    public class Prm
    {
        public string p1 { get; set; }
        public long p2 { get; set; }
    }
    public class Class1
    {
        public string Method1(Prm p)
        {
            return "Hello world";
        }
    }
}

usage:

private void button1_Click(object sender, EventArgs e)
{
  var ass = Assembly.LoadFrom("abc.dll");
  var business = ass.CreateInstance("WindowsFormsApplicationMethodCall.Class1");
  var mInfo = business.GetType().GetMethod("Method1");
  var anonymParameter = new { p1 = "", p2 = 2 };
  mInfo.Invoke(business,new object[]{ anonymParameter});
  //var res = mInfo.TolerantCast(new { p1 = "", p2 = 2 });
  //var param = new Dictionary<string,object>();
  //param.Add("p", result);                
}

I found this error : Object of type <>f__AnonymousType0`2[System.String,System.Int32] cannot be converted to type

must be create object parameter same type Prm this code create anonymous object "var anonymParameter = new { p1 = "", p2 = 2 };" — Ahmed Galal
– Ahmed Galal, Commented Jan 14, 2016 at 11:53
c#/.Net is type safe. The functions only accepts Prm objects, so you have to pass a Prm object. — thehennyy
– thehennyy, Commented Jan 14, 2016 at 11:55
I know this. Actually i have method, class and dll names as string. And there are parameters as List<string>. And i want to invoke method1 dynamically. — Adem Aygun
– Adem Aygun, Commented Jan 14, 2016 at 12:10
try use dynamic anonymParameter = ass.CreateInstance("WindowsFormsApplicationMethodCall.Prm"); anonymParameter.p1=""; or var anonymParameter = ass.CreateInstance("WindowsFormsApplicationMethodCall.Prm"); anonymParameter.GetType().GetProperty("p1").SetValue(anonymParameter,""); anonymParameter.GetType().GetProperty("p2").SetValue(anonymParameter,2); anonymParameter.p2=2; — Ahmed Galal
– Ahmed Galal, Commented Jan 14, 2016 at 12:46
yes, I think there is'nt another way. Can you copy these code in your answer. — Adem Aygun
– Adem Aygun, Commented Jan 14, 2016 at 13:36

Ahmed Galal · Accepted Answer · 2016-01-14 14:00:17Z

2

Create Instance From Class "Prm" and use it Instead

var anonymParameter = new { p1 = "", p2 = 2 };

to

var anonymParameter  = ass.CreateInstance("WindowsFormsApplicationMethodCall.Prm");
anonymParameter.GetType().GetProperty("p1").SetValue(anonymParameter,""); 
anonymParameter.GetType().GetProperty("p2").SetValue(anonymParameter,2);

edited Jan 14, 2016 at 14:00

answered Jan 14, 2016 at 11:58

Ahmed Galal

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1 Comment

Adem Aygun Over a year ago

yes. I create instance and set value via GetPropeties() and SetValue()

Dirk Vollmar · Accepted Answer · 2016-01-14 11:58:38Z

1

You need to pass an object of type Prm:

var parameter = new Prm { p1 = "", p2 = 2 };
mInfo.Invoke(business,new object[]{ parameter });

answered Jan 14, 2016 at 11:58

Dirk Vollmar

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