Delete element from an array

  

I need to delete the first element of an array

You can not delete a position or element from an array. If the array has 10 positions, it will always have 10 positions.

Use the Clear() method of class Array to reset this array position to its default value . For example:

int[] seuArray = new int[3];
seuArray[0] = 1;
seuArray[1] = 2;
seuArray[2] = 3;

Array.Clear(seuArray, 0, 1);

foreach (var x in arr) {
    Console.Write(x);
}

  

Result: 023

Being:

• seuArray : the array in question
• 0 : From which position you want to "clean"
• 1 : How many positions you want to clean

To overwrite the other positions just do:

seuArray[1] = 5;
seuArray[2] = 6;

var foos = new List<Foo>(array);
foos.RemoveAt(index);
return foos.ToArray();

You can try using extension method:

public static T[] RemoveAt<T>(this T[] source, int index)
{
    T[] dest = new T[source.Length - 1];
    if( index > 0 )
        Array.Copy(source, 0, dest, 0, index);

    if( index < source.Length - 1 )
        Array.Copy(source, index + 1, dest, index, source.Length - index - 1);

    return dest;
}

Using this:

Foo[] bar = GetFoos();
bar = bar.RemoveAt(2);

Source: link