I am getting an error when I try to change the value of a feature's Rotation Value. I have a schematic feature that I would like to rotate by changing the field's ROTATION value, but everytime I try to set the new value I get this error. "Error HRESULT E_FAIL has been returned from a call to a COM component"

Here is the part of the code where I set the value

ISchematicRelationController controller = new SchematicRelationControllerClass();
var parentContainer = controller.FindParent(duct);
if (parentContainer == null) {
   var rotIdx = parentContainer.Fields.FindField("ROTATION");
   var idx = duct.SchematicElement.Fields.FindField("ROTATION");
   if (rotIdx > -1) {
      Duct.SchematicElement.Value[rotIdx] = 45;
      parentContainer.Value[rotIdx] = 65; ------> this is where the exception occurs
  • aybody ? any kind of help would be appreciated – ZZZ Apr 19 '15 at 7:59

It turned out this field took double values so the answer was to set it as follows:

Duct.SchematicElement.Value[rotIdx] = 45;
  parentContainer.Value[rotIdx] = 65d; or 65.0
  • +1, Glad you found a solution to your problem even though it took almost 5 months :) – Joseph Sep 9 '15 at 11:26
  • yeah it was a simple problem that I solved back then, but I was going through my account so I can post answers on the stuff that I have solved but never answered on here haha. – ZZZ Sep 9 '15 at 11:49
  • It is much appreciated that you're coming back to post your solutions, I'm sure this will help others in similar situations in the future =) – Joseph Sep 9 '15 at 11:54

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