Difference between Convert.ToString() and object.ToString()?

Both statement are use to convert into string but the main difference is in handling of NULL value.

Convert.ToString() : It handles NULL reference exception.

.ToString() : It doesn’t handle NULL reference exception.

 So for good programming practice, always use Convert.ToString() for safety.

Code Snippet :

// Throws exception

int salary = null;

string oldSalary = salary.tostring();

// Return NULL value

int salary = null;

string oldSalary = Convert.ToString(salary);