Shade Alternate Lines

Repost from Crystal Report Tips and Trick  This was very useful and simple.

Shading Alternate Details Lines

1. Right-click the Details section name.
2. Select Section Expert.
3. Click the color tab and click the Conditional Formatting button.
   
   
4. To shade every other line, enter the formula
   If RecordNumber Mod 2 = 0 Then crSilver else crNoColor
   To shade every two lines, enter the formula
   If RecordNumber Mod 4 in 1 to 2 Then crSilver else crNoColor
5. Click OK twice, and preview your report.