What is difference between User controls and Custom Controls

Ans) User Control:

• ·        It is predefined attribute functionality where it resides in control library.
• ·        It is easy to create.
• ·        Good static Layout.
• ·        It  cannot be added to toolbox in Visual Studio
• ·        Limited support for customers who use visual design tool.
• ·        Separate copy of the control is required in each application.

Custom Control :

• ·        Custom control is defined by user itself and store in custom library.
• ·        It is harder to create
• ·        Good dynamic layout.
• ·        Can be added to toolbox in Visual Studio.
• ·        Full support for Customers
• ·        Only a single copy of the control is required in GAC.