How Can I Efficiently Merge Arrays in .NET?

Merging Arrays with Ease in .NET

When dealing with data stored in arrays, it often becomes necessary to combine multiple arrays into a single cohesive unit. While .NET 2.0 doesn't offer a dedicated function for array merging, there are efficient solutions available.

C# 3.0 and Beyond: Embracing LINQ

In C# 3.0 and later, the power of LINQ (Language Integrated Query) shines through with its Concat method. This simple and elegant solution allows you to merge two arrays in just one line of code:

int[] front = { 1, 2, 3, 4 };
int[] back = { 5, 6, 7, 8 };
int[] combined = front.Concat(back).ToArray();

C# 2.0: Leveraging Array.Copy

For C# 2.0 users, the Array.Copy method provides a reliable way to merge arrays. This approach involves creating a new array with enough space for both arrays and then using Array.Copy to transfer the elements:

int[] front = { 1, 2, 3, 4 };
int[] back = { 5, 6, 7, 8 };

int[] combined = new int[front.Length + back.Length];
Array.Copy(front, combined, front.Length);
Array.Copy(back, 0, combined, front.Length, back.Length);

Note:

If you encounter a situation where you frequently need to merge arrays, consider creating your own Concat method using Array.Copy as described above. By abstracting this task into a custom method, you can simplify your code and enhance its readability.

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