Difference between .Tostring() and convert.Tostring()

Question

Difference between .Tostring() and convert.Tostring() explain with example.

rahul jaiswal · Answer

Calling ToString() on an object presumes that the object is not null (since an object needs to exist to call an instance method on it). Convert.ToString(obj) doesn't need to presume the object is not null (as it is a static method on the Convert class) but instead will return String.Empty if it is null.

Jignesh Trivedi · Answer

hi ToString() raise exception when the object is null Convert.ToString() return string.Empty in case of null object string o = NullObject.ToString(); // Give runtime exception. string o1 = Convert.ToString(NullObject); // not give any runtime exception. hope this will help you.

Girish Barje · Answer

Convert.ToString() handles null  while ToString() doesn't.

hj jh · Answer

The major & most important differnce between the two is that convert.tostring() function will handle null by returning string.Empty where as .tostring() will not handle it and so will return null exception So as a good programming practice  use convert.tostring(). Please accept as answer if your problem resolved!