sizing forms in windows applications

hello,

i  am designing a  windows form which  has heigh 200 and width  300px. i  want this form should not be resized by  dragging itz edges. that means it  should  have constant size. now  i  can  resize it even after  giving its autosize property to false  and  autosize  mode to  grow only.  can  anyone  help how  can i  achieve  it??

thanks in  advance

s.kumar