c# . net how do I reference to modify the line spacing of text within blocks attributes

[jeff.wangD95HG]

I am trying to build a function that will update the attibute of a dynamic block with multiple lines. however I also want to adjust the line spacing within the dynamic block. How do I go about referencing this function?

basically modifying this within the dynamic block

I tried all the mtext class but it doesn't work. I believe these text are multi-line text instead of mtext.

   LineSpacingStyle

   LineSpacingFactor

   LineSpaceDistance

[jeff.wangD95HG]

i tried

attRef.MTextAttribute.LineSpacingFactor = 2;
attRef.MTextAttribute.LineSpaceDistance = 10;

and they don't seem to be doing anything

[jeff.wangD95HG · Accepted solution]

ok I figured it out.

I didn't line break properly. I need to use //p instead of /n for my text contents