Question

I was wondering, if there is an extension method that allow me to iterate a List and let me do the same thing with every item in the list. For example:

.RemoveAll(x => x.property == somevalue)

This removes every element wichs fulfill the condition. But, what if I have this:

foreach(object item in lstObjects)
{
    object MyObject = new object();
    MyObject.propertyone = item.property
    MyObject.propertytwo = somevalue;
    anotherlist.Add(MyObject);
}

Of course, the real code is a little more complex than this. My objective is to, instead of a foreach use an extension method, I have found List<T>.ForEach() but I can’t get it to work, and this method does not exist in a var list. I found too .Select<>, .Where<> but this returns values, and in my method there is no need to return any value.

Answer 1

var convertedItems = lstObjects.Select(item => 
{
    object MyObject = new object();
    MyObject.propertyone = item.property
    MyObject.propertytwo = somevalue;
    return MyObject;
});

anotherList.AddRange(convertedItems);

or

anotherList = convertedItems.ToList();

and if you want to make it shorter:

var convertedItems = lstObjects.Select(item => 
    new object {propertyone = item.property, propertytwo = somevalue});