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

Converting Datatype

We can convert one datatype to another using some internally available functions. Most probably this option is used to convert string to some other datatypes. This concept of converting from one datatype to another is known as Type Conversion. Below are the some methods used to convert from one datatype to another.

Method Name	Description
ToBoolean	Converts a type to a Boolean value, where possible.
ToByte	Converts a type to a byte.
ToChar	Converts a type to a character
ToDateTime	Converts a type (integer or string type) to date-time structures.
ToDecimal	Converts a floating point or integer type to a decimal type.
ToDouble	Converts a type to a double type.
ToInt16	Converts a type to a 16-bit integer(short).
ToInt32	Converts a type to a 32-bit integer(int).
ToInt64	Converts a type to a 64-bit integer(long).
ToSbyte	Converts a type to a signed byte type.
ToSingle	Converts a type to a small floating point number.
ToString	Converts a type to a string.
ToUInt16	Converts a type to an unsigned int type(ushort).
ToUInt32	Converts a type to an unsigned long type(uint).
ToUInt64	Converts a type to an unsigned big integer(ulong).

TIP:
All the above methods are present inside class called Convert.
Just type Convert and put '.' after it, Viusal studio IntelliSense will automatically suggest all the methods above. We can choose one from the suggestion.

CODE

static void Main(string[] args) {
    //Converting string to int datatype and storing inside a int variable
    string numberText = "23";
    int intNumber = Convert.ToInt32(numberText);

    //Converting string to double datatype and storing inside a double variable
    string decimalText = "23.5466";
    double decimalNumber = Convert.ToDouble(decimalText);

    //Converting string to bool datatype and storing inside a bool variable
    string boolText = "true";
    bool boolValue = Convert.ToBoolean(boolText);

    //Converting string to char datatype and storing inside a char variable
    string singleCharacter = "$";
    char charValue = Convert.ToChar(singleCharacter);
}

Exercises
1. Try to convert a int value to string
2. Try to convert a int value to char
3. Try to convert a single digit char number to int
4. Try to convert a double value to string

(Click Here, For more exercises)