Dynamic Height for UITextView / UILabel / UITableViewCell

we can use this for calculating the height taken by a UILabel or UITextView or we can use this same method to calculate the height of cell according to its content..

CGRect frame1 = CGRectMake(5.0, 100.0, 300.0, 75.0 );
    UITextView *textView = [[UITextView alloc] initWithFrame:frame1];
    textView.font = [UIFont systemFontOfSize:17.0];
    NSString *str  = @"The Lord takes care of me as his sheep; I will not be without any good thing.";
    CGSize        textSize = { 300.0f, 9999.0f };
    CGSize size1 = [str sizeWithFont:textView.font constrainedToSize:textSize lineBreakMode:UILineBreakModeWordWrap];
    textView.text = str;
    frame1.size.height = size1.height;
    textView.frame = frame1;
    [self.view addSubview:textView];
    [textView release];

For UITableView
we can use like

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath

{

//calculate the height of the text displayed on this cell using the above method

return MAX(size1.height, kMinRowHeight);

}