How obtain updated Parameter Value within a public void?

[Anonymous]

Hi,everyone

I have parameter A, parameter B, and Parameter C of a element

first I need to set parameter A or B to value (Yes) or (No) as it needs.

and use the new parameter value to do  the following if statements to set Parameter C.

But somehow I can never obtain the updated parameter.

If parameter A value was set to "No" when I select the element. The value will states the same even after I set to "Yes" and get the parameter again.

Is there anyway to update the parameter value of and selected element within the code?

Thanks

 Parameter pA = e.get_Parameter("A");
 Parameter pB = e.get_Parameter("B"); 
 Parameter pC = e.get_Parameter("C");
 pA.Set(0);
 pb.Set(0);
 Parameter npA = e.get_Parameter("A");
 Parameter npB = e.get_Parameter("A");
 string ParaA = npA.AsValueString(); 
 
 If(npA == "Yes" || npB == " Yes")
 {
 ParaC.Set(1);
 }
 If(npA == "No" && npB == " No")
 {
 pC.Set(0);
 } 

[ollikat · Accepted solution]

Hi

Have you tried using the Document.Regenerate() after setting the parameters? It indeed might need that.

You can find some related topics from the Building coder site i.e. http://thebuildingcoder.typepad.com/blog/2010/06/to-regenerate-or-not-to-regenerate.html

Also there's something related in this forum also:

http://forums.autodesk.com/t5/revit-api/document-modification-transactions-parameters-etc/m-p/545850...

Hope this helps.

[Revitalizer]

Hi,

you are comparing a Parameter object with a string.

You need to compare the Parameter's value.

Best regards,

Revitalizer

[Anonymous]

This method works great

I also found another example from Jeremy:

http://thebuildingcoder.typepad.com/blog/regen/

Thanks

[Anonymous]

Hi,Revitalizer

Thanks for your reply.

The new code should be:

doc.Regenerate(); 
Parameter npA = e.get_Parameter("A");
Parameter npB = e.get_Parameter("A");
//Convert Parameter to Value String
 string ParaA = npA.AsValueString(); 
 string ParaB = npB.ASValueString();

 If( ParaA == "Yes" || ParaB == "Yes")
 {
 ParaC.Set(1);
 }
 If( ParaA == "No" && ParaB == "No")
 {
 pC.Set(0);
 }