Asp.net display bar code in the Crystal Report

1. google code39 font on the Internet, a lot of downloads on the Internet, and then install it in the system directory under windows/fonts.

2. First, the report must contain numeric fields, such as ksh. In this case, create the formula field name TiaoMa and enter "*" + {data source. ksh} + "*" in the editor. Save and close the field.

In fact, it is to add the * number to the front and back of the bar code. This is the requirement for bar code gun recognition.

3. Drag the formula field TiaoMa into the report and set the font to the bar code font. The size is appropriate.

This completes.