textbox is not displaying some text in windows phone 7 -

i want display amount of text in scrollabletextblock part of text displayed remaining part not displayed since have huge data think not displaying how overcome limitation.

when small amount of data added displayed if there huge amount of data data truncated.

here code have implemented far. displays less data, when there huge data displayed on scrollabletextblock, doesn't display.

my:scrollabletextblock text="scrollabletextblockcfbvc" horizontalalignment="left" name="scrollabletextblock1" verticalalignment="top" height="500" width="427" margin="12,6,0,0" /> 

try textwrapping property may resize textblock according amount of data given.