Question

I have 2 lists containing different types. One is a string[] and another is a List<SelectListItem>.

SelectListItem (it’s in mvc):

public string Text {get;set;}
public string Value {get;set;}
public bool Selected {get;set;}

My string[] is just contains some text values.

What i’m trying to do is, get whatever is in the string[], then set "Selected = true" for whatever Value matches, and "Selected = false" for what doesnt match.

So lets say my string[] is:

Test1
Test2
Test3

And my List<SelectListItem> is:

new SelectListItem { Text = "Testing", Value = "Test1", Selected = false },
new SelectListItem { Text = "Testing", Value = "Test4", Selected = true }

In the above List<SelectListItem>, i have one match. So what i’d like to do, is set Selected = true for that particular entry so that i end up with:

new SelectListItem { Text = "Testing", Value = "Test1", Selected = true },
new SelectListItem { Text = "Testing", Value = "Test4", Selected = false }

How would I achieve this?

Answer 1

foreach(var i in selectListItemList)
    i.Selected = stringArray.Contains(i.Value);

or using List.ForEach:

selectListItemList.ForEach(i => i.Selected = stringArray.Contains(i.Value));