PromptForFamilyInstancePlacement Disables Some Menu Options

[muaslam]

Hello,

I am trying to Place a FamilySymbol using PromptForFamilyInstancePlacement method using C# while developing an add-in for Revit. The placement of components using this method disables most of the menu options while placement (as shown in picture 1). While if I try to place the same component directly from Project Browser, the same menu options remain enabled (as shown in picture 2) . Can someone point out something that I should do to match the behavior with Project Browser?

Picture1Picture2

Here's my code snippet that I am using,

FamilySymbol symbol = HelperMethods.LoadFamilySymbol(familyFilePath, familySymbolName, revitUIApp.ActiveUIDocument.Document);

BCCSCore.Instance.RevitUIApp.ActiveUIDocument.PromptForFamilyInstancePlacement(symbol);

Any help in this regard would be much appreciated.

Thanks,

Umar

[jeremytammik]

Maybe you need to activate the symbol before you can place it?

https://apidocs.co/apps/revit/2019/b4e09402-f6cd-3f48-d01e-ecb87375bac5.htm

http://thebuildingcoder.typepad.com/blog/2014/08/activate-your-family-symbol-before-using-it.html

Cheers,

Jeremy

[muaslam]

Hi Jeremy,

Thanks for replying. I have tried Activating the symbol as well. But the menu items still remain disabled. Then, I tried regenerating the document as well. But even this didn't fix the issue. The menu items are disabled while placing component through PromptForFamilyInstancePlacement command while they are enabled when we place from Project Browser. 

         static public FamilySymbol LoadFamilySymbol (string localFilePath, string symbolName, Document doc)
            {
            FamilySymbol symbol = null;
            using ( Transaction transaction = new Transaction(doc, "Load Transaction") )
                {
                try
                    {
                    transaction.Start();
                    doc.LoadFamilySymbol(localFilePath, symbolName, out symbol);
                    if (!symbol.IsActive)
                        {
                        symbol.Activate();
                        doc.Regenerate();
                        }
                    transaction.Commit();
                    }
                catch
                    {
                    transaction.RollBack();
                    }
                }
            return symbol;
            }
        }

Thanks,

Umar

[muaslam · Accepted solution]

Hi Folks,

I found a solution for the item, previously as mentioned in previous post I had been using,

FamilySymbol symbol = HelperMethods.LoadFamilySymbol(familyFilePath, familySymbolName, revitUIApp.ActiveUIDocument.Document);

BCCSCore.Instance.RevitUIApp.ActiveUIDocument.PromptForFamilyInstancePlacement(symbol);

Instead of the above, now I am using,

FamilySymbol symbol = HelperMethods.LoadFamilySymbol(familyFilePath, familySymbolName, revitUIApp.ActiveUIDocument.Document);

ElementType elementType = symbol as ElementType;

BCCSCore.Instance.RevitUIApp.ActiveUIDocument.PostRequestForElementTypePlacement (elementType);

This way the execution does not stop at PostRequestForElementTypePlacement, I had to handle this workflow, but it does not disable any of the menus.

In my above codes BCCSCore is a singleton class and has an instance of UIApplication class (from Revit Api).

Thanks,

Umar