I want to make this array completely empty.

string[] strNumbers = new string[3] { "1", "2", "3" };

So I want it to be this

strNumbers = {}

Using the function

 Array.Clear();

CodePudding user response：

why don't use this

 strNumbers = new string[3] ;

CodePudding user response：

Array.Clear will set elements of array to the default values (null for string) but will keep the size of array. Just new up the array:

strNumbers = new string[0];

Or even better:

strNumbers = Array.Empty<string>();

CodePudding user response：

Unclear what you are asking.

1. Create a new array with no elements

   string[] strNumbers = new string[0];
   

   or

   string[] strNumbers = Array.Empty<string>();
   

   strNumbers.Length will be zero

2. Create a new array but leave contents empty

   string[] strNumbers = new string[3];
   

   contents will be three null values

3. Take an existing array and remove all the elements

   Arrays in C# are of fixed size. You cannot add or remove elements from arrays. If you need variable size arrays, use List<string> or some other collection type.

4. Take an existing array and set the contents to their default values

   for(int i=0; i<strNumbers.Length; i  )
   {
       strNumbers[i] = default(string);
   }
   

   or

   Array.Clear(strNumbers, 0, strNumbers.Length);