c# - List of values to list of strings -

how convert it:

var values = new list<object> { 1, 5, "eee", myenum.value }; 

to

var stringvalues = new list<object> { "1", "5", "eee", myenum.value.tostring() }; 

but in fast way?

first, it's not clear whether question different convert list(of object) list(of string); if is, should clarify particular situation.

the straight-forward solution use linq: var stringvalues = values.select(v => (object) v.tostring()).tolist(); note cast object match code above.

it's not clear why you'd want result list<object> instead of list<string>. also, should prefer work ienumerable<> instead of converting list<>. preferred code be

var stringvalues = values.select(v => v.tostring()); 

if you're doing type of thing lot, might find extension method useful

static class listextensions {    public static ienumerable<string> asstrings(this list<object> values)    {       return values.select(v => v.tostring());    } } 

you use like:

var stringvalues = values.asstrings(); 

depending on needs, may want more more sophisticated string conversion object.tostring(). convert.tostring() tries first find iconvertable , iformattable interfaces before calling tostring().

    var stringvalues = values.select(v => convert.tostring(v));