如何在gridview中的boundfield列中包装文本

i am having a boundfield column and in that column if i entered a string(without spaces) of length 15, there is no problem. But if the string is more than 15, the text is not wrapped. I gave the command column.ItemStyle.Wrap=true; But its not working. I have fixed the width of the column.i am having a boundfield column and in that col