Help with a Macro to get CentralPath to Appear on the Titleblock

[davidsUUGCH]

Hello i am currently working on a Macro that takes the Central model path and places it on a shared parameter on the title block label. At this stage i just need to read a central on our server i am aware that BIM360 needs more work but i just need something simple right now.

Here is the code:

using System;
using Autodesk.Revit.UI;
using Autodesk.Revit.DB;
using Autodesk.Revit.UI.Selection;
using System.Collections.Generic;
using System.Linq;
using Autodesk.Revit.DB.Events;
using Autodesk.Revit.Attributes;
using Autodesk.Revit.ApplicationServices;
using System.Text;
namespace TestMacro5
{
    [Autodesk.Revit.Attributes.Transaction(Autodesk.Revit.Attributes.TransactionMode.Manual)]
    [Autodesk.Revit.DB.Macros.AddInId("44DC398D-02D1-4883-9F4C-CA13E178BA72")]
	public partial class ThisDocument
	{
		private void Module_Startup(object sender, EventArgs e)
		{
		this.Application.Application.FileExporting += new EventHandler<Autodesk.Revit.DB.Events.FileExportingEventArgs>(CENTRALPATH_TO_CentralSTRG);
		}

		private void Module_Shutdown(object sender, EventArgs e)
		{
		this.Application.Application.FileExporting -= new EventHandler<Autodesk.Revit.DB.Events.FileExportingEventArgs>(CENTRALPATH_TO_CentralSTRG);
		}

		#region Revit Macros generated code
		private void InternalStartup()
		{
			this.Startup += new System.EventHandler(Module_Startup);
			this.Shutdown += new System.EventHandler(Module_Shutdown);
		}
		#endregion
				internal void CENTRALPATH_TO_CentralSTRG(object sender, FileExportingEventArgs args)  
    	{  
        	UIDocument uidoc = this;  
        	View view = uidoc.ActiveView;  
        	
    		// collect the titleblock and the parameter used   
    		string VisiblePath = ModelPath.GetWorksharingCentralModelPath();
        	string titleBlockFamilyTypeName = "D 22 x 34 Horizontal";  
        	string parameterName = "CentralSTRG";
  
        	FamilyInstance titleBlock = new FilteredElementCollector(uidoc.Document, view.Id)  
            	.OfCategory(BuiltInCategory.OST_TitleBlocks)  
            	.OfClass(typeof(FamilyInstance))  
            	.Cast<FamilyInstance>()  
            	.Where(f => f.Name == titleBlockFamilyTypeName)  
            	.FirstOrDefault();  
        	
			//set the parameter to central file path. 
        	using (Transaction tr = new Transaction(uidoc.Document))  
        	{  
            	tr.Start("setting titleblock parameter");  

             	titleBlock.GetParameters(parameterName).FirstOrDefault().Set(VisiblePath);  

            	tr.Commit();  
        	}  
		}
	    }}

I cannot seem to figure out why i get error CS0117, Autodesk.Revit.DB.ModelPath. reading the documentation seems to indicate the method is part of the class. So i dont know if i am missing a call to a namespace?

As you can probably tell i am very new at this and this code above is a result of asking question on other forums and reading the web.

I have asked this question on other forums with a different line of code and some background given here: https://www.revitforum.org/node/450494#post450506

Udpate i got this to work following some advice from this forum: https://forums.autodesk.com/t5/revit-api-forum/file-based-central-model-path/td-p/6946021

However the output is blank i dont know if i have everything set up correctly.

Here is the new Code:

using System;
using System.Diagnostics;
using Autodesk.Revit.UI;
using Autodesk.Revit.DB;
using Autodesk.Revit.UI.Selection;
using System.Collections.Generic;
using System.Linq;
using Autodesk.Revit.DB.Events;
using Autodesk.Revit.Attributes;
using Autodesk.Revit.ApplicationServices;
using System.Text;

namespace TestMacro5
{
    [Autodesk.Revit.Attributes.Transaction(Autodesk.Revit.Attributes.TransactionMode.Manual)]
    [Autodesk.Revit.DB.Macros.AddInId("44DC398D-02D1-4883-9F4C-CA13E178BA72")]
	public partial class ThisDocument
	{
		private void Module_Startup(object sender, EventArgs e)
		{
		this.Application.Application.FileExporting += new EventHandler<Autodesk.Revit.DB.Events.FileExportingEventArgs>(CENTRALPATH_TO_CentralSTRG);
		}

		private void Module_Shutdown(object sender, EventArgs e)
		{
		this.Application.Application.FileExporting -= new EventHandler<Autodesk.Revit.DB.Events.FileExportingEventArgs>(CENTRALPATH_TO_CentralSTRG);
		}

		#region Revit Macros generated code
		private void InternalStartup()
		{
			this.Startup += new System.EventHandler(Module_Startup);
			this.Shutdown += new System.EventHandler(Module_Shutdown);
		}
		#endregion
				internal void CENTRALPATH_TO_CentralSTRG(object sender, FileExportingEventArgs args)
					
				{
        	UIDocument uidoc = this;  
        	View view = uidoc.ActiveView;
        	
        	
    		// collect the titleblock and the parameter extract central path  
    		var ModelPath = Document.GetWorksharingCentralModelPath();
    		var CentralServerPath = ModelPathUtils.ConvertModelPathToUserVisiblePath(ModelPath);
        	string titleBlockFamilyTypeName = "D 22 x 34 Horizontal";  
        	string parameterName = "CentralSTRG";
  
        	FamilyInstance titleBlock = new FilteredElementCollector(uidoc.Document, view.Id)  
            	.OfCategory(BuiltInCategory.OST_TitleBlocks)  
            	.OfClass(typeof(FamilyInstance))  
            	.Cast<FamilyInstance>()  
            	.Where(f => f.Name == titleBlockFamilyTypeName)  
            	.FirstOrDefault();
        	
        	
			//set the parameter to central file path. 
        	using (Transaction tr = new Transaction(uidoc.Document))  
        	{  
            	tr.Start("setting titleblock parameter");  

             	titleBlock.GetParameters(parameterName).FirstOrDefault().Set(CentralServerPath);  

            	tr.Commit();  
        	}  
		}
	    }}

[davidsUUGCH · Accepted solution]

NVM i think i solved it with this one from here!

https://forums.autodesk.com/t5/revit-api-forum/file-based-central-model-path/td-p/6946021

Turns out i was writing the variables as strings and that was messing everything up.

Edit: Still not working, I get a Null (0) result even with the file set to be workshared.Here is the new code:

using System;
using System.Diagnostics;
using Autodesk.Revit.UI;
using Autodesk.Revit.DB;
using Autodesk.Revit.UI.Selection;
using System.Collections.Generic;
using System.Linq;
using Autodesk.Revit.DB.Events;
using Autodesk.Revit.Attributes;
using Autodesk.Revit.ApplicationServices;
using System.Text;

namespace TestMacro5
{
    [Autodesk.Revit.Attributes.Transaction(Autodesk.Revit.Attributes.TransactionMode.Manual)]
    [Autodesk.Revit.DB.Macros.AddInId("xxxx-xxx-xxx-xxx-xxxx")]
	public partial class ThisDocument
	{
		private void Module_Startup(object sender, EventArgs e)
		{
		this.Application.Application.FileExporting += new EventHandler<Autodesk.Revit.DB.Events.FileExportingEventArgs>(CENTRALPATH_TO_CentralSTRG);
		}

		private void Module_Shutdown(object sender, EventArgs e)
		{
		this.Application.Application.FileExporting -= new EventHandler<Autodesk.Revit.DB.Events.FileExportingEventArgs>(CENTRALPATH_TO_CentralSTRG);
		}

		#region Revit Macros generated code
		private void InternalStartup()
		{
			this.Startup += new System.EventHandler(Module_Startup);
			this.Shutdown += new System.EventHandler(Module_Shutdown);
		}
		#endregion
				internal void CENTRALPATH_TO_CentralSTRG(object sender, FileExportingEventArgs args)
					
				{
        	UIDocument uidoc = this;  
        	View view = uidoc.ActiveView;
        	
        	
    		// collect the titleblock and the parameter extract central path  
    		var ModelPath = Document.GetWorksharingCentralModelPath();
    		var CentralServerPath = ModelPathUtils.ConvertModelPathToUserVisiblePath(ModelPath);
    		
        	string titleBlockFamilyTypeName = "D 22 x 34 Horizontal";  
        	string parameterName = "CentralSTRG";
  
        	FamilyInstance titleBlock = new FilteredElementCollector(uidoc.Document, view.Id)  
            	.OfCategory(BuiltInCategory.OST_TitleBlocks)  
            	.OfClass(typeof(FamilyInstance))  
            	.Cast<FamilyInstance>()  
            	.Where(f => f.Name == titleBlockFamilyTypeName)  
            	.FirstOrDefault();
        	
        	
			//set the parameter to central file path. 
        	using (Transaction tr = new Transaction(uidoc.Document))  
        	{  
            	tr.Start("setting titleblock parameter");  

             	titleBlock.GetParameters(parameterName).FirstOrDefault().Set(CentralServerPath);  

            	tr.Commit();  
        	}  
		}
	    }}