Reg:How to change font style and restrict the lenght 1000char

Hi All

I am using a Text View UI element for user comments in the screen.

For visibling of that text at run time at I used header2 in design properties,

but I need to display text in the caliber font of size 13 .Can you please provide me the process how to work out this requirement .

2)how can we restrict the characters to only 1000 char in this text view.

And when the user enters 1001 char ,it shouldn't allow to enter the character.

Regards

Deepika