score:1
Accepted answer
If ID is unique within list_2 you can have a faster implementation (for large lists) by converting list to dictionary
// A little bit of Linq: ToDictionary
var dict = list_2.ToDictionary(item => item.ID, item => item);
...
foreach (item in list_1) {
foo master;
if (dict.TryGetValue(item.ID, out master)) {
item.name = master.name;
item.color = master.color;
}
}
Source: stackoverflow.com
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