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c# - How I can get elements from dictionary and add into array?


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Your array is not instantiated, dude:

string[] txtArr = new string[dataList.Count];
for (int i = 0; i < dataList.Count; i++)
{
  txtArr[i] = dataList[i];
}

or you can do it like this:

string[] txtArr = dataList.ToArray();

or you can do it like this:

string[] txtArr = dict.ToList().Select(x => x.Value).ToArray();

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