How to set up width of columns in WinForms datagridview properly?

I have a datagridview with some data inside. Some of its contents is long. I have the following requirements:

1. Immediately after loading no scrolling should be shown.
2. If content is longer than width of column it should be clipped.
3. User can resize any column.
4. If summarized width of c开发者_高级运维ontent is less that the width of the table the columns should be stretched.