Hello Shuang Li,

Welcome to our Community!

When you say you need to create a table with over 12 cols, do you mean setting the full table width to over 12 cols? If so, you can set whatever width you'd like on the TableRecords by using the width property.

Let us know if this is what you were looking for.

thank you Goncalo Gaiolas for answer my question,

yes,I want to setting the full table width to over 12 cols, using the width property can do it ,but when the table width over backgroud (white) ,I only can see a part of the table, is that right? what I miss?

below the table only can show me a part of the table at 2014/3

Hello Shuang Li,

Did you changed anything in your layout?
It seems that the table is overflowing, since the layout has a maximum width of 980px (12 col) defined by your grid. If you want to have a grid bigger than 980px, consider changing the grid properties of your Theme (for example increasing the ColumnWidth and GutterWidth properties).

Best Regards,
Vasco Pessanha