How to concatenate keys with values?

Question

I am trying to create a string composed of a key followed by its value, such that the string looks something like:

key;value,key;value,key;value

So far I have tried to use concat:

var originalKeyValues = entity.ChangeTracker.OriginalValues.Keys.Concat(
    entity.ChangeTracker.OriginalValues.Values).ToString();

...but this doesn't seem to produce what I want.

Both Keys and Values are Dictionary<string, object>

Answer 1

string result=list.Select(w=>w.Key+";"+w.Value).Aggregate((c,n)=>c+","+n);

Answer 2

I would do like this:

var x = new Dictionary<string, string> { { "key", "value" }, { "key2", "value2" } };

Console.WriteLine(
    String.Join(",", x.Select(d => String.Format("{0};{1}", d.Key, d.Value)))
);

From the dictionary select a enumerable of string then join the list by ,.

Output: key;value,key2;value2