how to scroll the scrollview after inserting textview?

I've a problem that I want to insert m开发者_C百科any lines in my scrollview from a textview but I want that after inserting 6 lines the scroll will be enabled not before it. please some one help me..

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Initially set the scrollEnabled property of the scrollView to NO, and set it to YES after inserting those six lines.

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You will have to put a condition according to the number of characters. Roughly determine the number of characters in six lines. Store the textView text in a string and use the following condition:

NSString *textString = myTextField.text;

    if ( [textString length] < NUMBER_OF_CHARACTERS_IN_SIX_LINES )
    {

    [myScrollView setScrollEnabled:NO];

    }

    else

    [myScrollView setScrollEnabled:YES];

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You shoud set the scrollView's contentSize accordingly.

Assuming it's a vertical scroll, find the height of text/ scrollView and set it like this:

scrollView.contentSize = CGSizeMake(newHeight,width);