Dimension in dynamic block: dimension is not associated at the first time

[schmidt]

Hello,
I created a dynamic block with blocktables, visibility, some parameters and actions. (see attachment)

Some move and stretch actions are also provided with associated dimensions.

When I make a change for the first time, the dimension loses the association. With the second change everything is correct. (The same happens when I insert this block again..)

Do you have an explanation for this behavior?
We need the correct behavior from the beginning... we tried to change parameters via C#, but we didn't find a code to solve the problem.
Maybe there is a solution I don't see?

Here is a screenshot how to change the behavior of the block:

[h_s_walker · Accepted solution]

I'm not entirely sure why it stretches the second time, but the reason why it's not stretching the first time is because your dimension labelled Bm is not added to your stretch action Strecken5.

And you don't need all those constraints if what you're doing is just moving everything left and right.

See the block in the attached drawing. I changed the dimension colour to green, so you could tell it apart from your block

[schmidt]

Thanks a lot for the solution. Now my block works perfectly!