adding to array c# concat code example
Example 1: c# concant 2 tab
tab1.Concat(tab2).ToArray();
Example 2: append 2 arrays c#
var z = new int[x.Length + y.Length];
x.CopyTo(z, 0);
y.CopyTo(z, x.Length);
tab1.Concat(tab2).ToArray();
var z = new int[x.Length + y.Length];
x.CopyTo(z, 0);
y.CopyTo(z, x.Length);