http://www.enginpolat.com/csharp-multi-dimensional-array-dizi-ve-jagged-array-dizi-arasindaki-farklar

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C# Multi-Dimensional Array (Dizi) ve Jagged Array (Dizi) arasındaki farklar

jagged-0.cs

var jagged = new int[10][30];

jagged-1.cs

jagged[3][6];

jagged-2.cs

jagged[0].Length == jagged[1].Length

jagged-3.cs

var jagged = new int[3][]; 
jagged[0] = new int[4] {  1,  2,  3,  4 }; 
jagged[1] = new int[2] { 11, 12 }; 
jagged[2] = new int[3] { 21, 22, 23 };

jagged-4.cs

 1 |  2 |  3 | 4
11 | 12
21 | 22 | 23

multi-0.cs

var multi = new int[10, 30];

multi-1.cs

multi.GetLength(0) // 10
multi.GetLength(1) // 30

multi-2.cs

multi[5, 6]; // 5 x 10 + 6 = 56. öğeye erişiliyor

multi-3.cs

var data = new int[2, 2];
data[0,0] = 1;
data[0,1] = 2;
data[1,0] = 3;
data[1,1] = 4;

multi-4.cs

1 | 2
3 | 4

performance-0.cs

static void SetElementAt(int[][] array, int i, int j, int value)
{
  array[i][j] = value;
}

static void SetElementAt(int[,] array, int i, int j, int value)
{
  array[i, j] = value;
}

performance-1.cs

.method private hidebysig static void SetElementAt(int32[][] 'array',
                                                   int32 i,
                                                   int32 j,
                                                   int32 'value') cil managed
{
  // Code size 7 (0x7)
  .maxstack  8
  IL_0000:  ldarg.0
  IL_0001:  ldarg.1
  IL_0002:  ldelem.ref
  IL_0003:  ldarg.2
  IL_0004:  ldarg.3
  IL_0005:  stelem.i4
  IL_0006:  ret
} // Jagged Array

.method private hidebysig static void SetElementAt(int32[0...,0...] 'array',
                                                   int32 i,
                                                   int32 j,
                                                   int32 'value') cil managed
{
  // Code size 10 (0xa)
  .maxstack  8
  IL_0000:  ldarg.0
  IL_0001:  ldarg.1
  IL_0002:  ldarg.2
  IL_0003:  ldarg.3
  IL_0004:  call       instance void int32[0...,0...]::Set(int32,
                                                           int32,
                                                           int32)
  IL_0009:  ret
} // Multi-Dimensional Array