c# - 对齐次列表求和<object> <div id="body"><p>I am working on a C# application. I have multiple lists of objects i.e. each list contains values of different types like double, int etc stored in the form of object in the list. Each list contains the same type of objec

问题描述

I am working on a C# application. I have multiple lists of objects i.e. each list contains values of different types like double, int etc stored in the form of object in the list. Each list contains the same type of objects.

List<object> l1 = {1,2,3,4,5,6};

List<object> l2 = {1.1, 2.1, 3.2, 4.2, 5.6, 6.1, 7.5, 8.6, 9.2};

There can be many other lists of different types stored in the form of object. My issue is that i have to recognize the type of the object of the list from first value and add all the elements of the list. I am using the following code to get the type .

Type typeOfCurrentField = l1[0].GetType();

This gives me the type of the object. Now i have to get all the values of the list converted to this type. Currently, i am trying this:

dynamic sum = null;
Type typeOfCurrentField = null;
for(int i = 0; i < l1.Count; i++)
{
    if (typeOfCurrentField == null)
    {
        typeOfCurrentField = l1[i].GetType();
        sum = Convert.ChangeType(l1[i], typeOfCurrentField);
    }
    else
    {
        sum = sum + Convert.ChangeType(l1[i], typeOfCurrentField);;
    }
    
}

This gives me the following exception:

Operator '+' cannot be applied to operands of type 'double' and 'object' Exception of type ==> Microsoft.CSharp.RuntimeBinder.RuntimeBinderException

How can i overcome this problem ?

c# - 对齐次列表求和

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