Silverlight supports 2 types of ANIMATIONS:

From/To/By animation:

Used for animating between a STARTING and ending value:

- From is used to set the starting value
- To is used to set the ending value
- By is used for SETTING ending value relative to the starting value of the animation

Key-frame animation

Key frame objects animates between a SERIES of values. They are powerful than From/To/By animations, as there is FLEXIBILITY to specify any number of target values and even interpolation method can also be controlled. 

Silverlight supports 2 types of animations:

From/To/By animation:

Used for animating between a starting and ending value:

- From is used to set the starting value
- To is used to set the ending value
- By is used for setting ending value relative to the starting value of the animation

Key-frame animation

Key frame objects animates between a series of values. They are powerful than From/To/By animations, as there is flexibility to specify any number of target values and even interpolation method can also be controlled.