long Text Wrap in Datagridview Textbox colum C#

hi everyone ,

my prob is if i m write long text without space means datagridview column not wrapping...if using space means wrap working properly...

i was set these setting in datagridview

AutoSizeRowMode = AllCells

DefaultCellStyle = Wrap = true...

can u anyone tell me whats my prob?

Thanks & Regards,