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C# Feature – Deconstruction

Overview

Section titled “Overview”

Deconstruction syntax assigns multiple values in one statement from tuples or types with Deconstruct methods.

Introduced In

Section titled “Introduced In”

C# 7 (2017)

Before

Section titled “Before”
var t = GetPoint();
var x = t.X; var y = t.Y;

After

Section titled “After”
var (x, y) = GetPoint();

Annotated Example

Section titled “Annotated Example”
public readonly struct Point(int x, int y)
{
  public int X { get; } = x;
  public int Y { get; } = y;
}

Gotchas & Best Practices

Section titled “Gotchas & Best Practices”
  • Ensure Deconstruct methods are in scope.
Section titled “Related Features”

Version Notes

Section titled “Version Notes”
  • Extended patterns support richer deconstruction cases.