In version X13, a new property has been introduced that specifies whether the content of empty merge blocks should be removed from the template or not: RemoveEmptyBlocks. This can be very helpful for dynamic templates where under specific circumstances, a complete block should be rendered or not.
Consider the following sample class structure that is used as the merge data object:
The name of the dynamic block in the template is Appendix and the master object is Data. If the property Appendix of the class Data has been set to a valid object of type Appendix, the block data exists and is merged.
This new concept allows you to create dynamic structures and conditional blocks in a template. Merge blocks are not necessarily blocks that repeat content. Using merge blocks, you can also define a named range of formatted text with data from another object.