C#

• Introduction
• Getting Output
• Datatype
• Variable Declaration
• Operator
• string concatenation
• Converting Datatype
• Getting input from user
• Working on Angles
• Escape Sequence
• Conditional Statements
• If statement
• Switch statement
• Types of Error
• Exception Handling
• Loop
• While Loop
• For Loop
• Do While Loop
• Array
• Foreach Loop
• Multi dimensional array
• Nested Loop
• Jump Statment
• String Handling Function
• Methods or Functions
• Passing Parameter
• Method Overloading
• Void Function
• Returning Function
• Class
• Creating New Instance
• Static Keyword
• Constructor
• Constructor Overloading
• Destructor
• Inheritance
• Multi Level Inheritance
• Multiple Inheritance
• Sealed Class
• Partial Class
• Upcasting
• Abstract Class
• Interface
• Ref,Out,In Parameters
• Field Vs Property
• Struct
• DateTime
• Enum
• Namespace
• Dynamic Link Library(DLL)
• Collections
• File Handling
• Excel handling

Multidimensional Array

Multidimensional array is also known as rectangular arrays in C#. It can be two dimensional or three dimensional. The data is stored in tabular form (row, column) which is also known as matrix. To create multidimensional array, we need to use comma inside the square brackets.
Before studying Multidimensional array, we need to be clear with one dimensional array. The New keyword what we going to use below is nothing but we are telling the system to create new array memory space of given rows and columns.

Syntax
datatype[,] arrayName = new datatype[row,column];

TIP
When it comes to multidimensional array always declare memory space first and use index value of row and coloumn in order to assign the values so that it will not be confusing.

CODE

EG 1 . Creating 2 dimensional array with 2 rows and 3 coloumns to store name of cricket players.

static void Main(string[] args) {
    string[,] cricketPlayers = new string[2, 3];
    cricketPlayers[0, 0] = "Sachin";
    cricketPlayers[0, 1] = "Ramesh";
    cricketPlayers[0, 2] = "Tendulkar";
    cricketPlayers[1, 0] = "Mahendra";
    cricketPlayers[1, 1] = "Singh";
    cricketPlayers[1, 2] = "Dhoni";
}

CODE EXPLANATION
In the above code, We declared a 2 dimensional array with 2 rows and 3 columns. First we declared memory space then we called individual index number of row and column in order to assign values inside. Once after assigning the values our memory space will look like above diagram.

Exercises
1. Create 2 dimensional char[] with 4 rows and 5 columns. Visualize how memory allocation, naming will takes place with the help of diagram.

(Click Here, For more exercises)