Thank you, Luan. I am really glad to hear that you find these videos useful and informative. I will soon start recording more. :)

You're welcome. ;)

Hi Dmytro. Personally I started learning C# and .NET framework in general. With that knowledge I started digging into Revit API as documentation basis to understand fundamentals of how it is designed to behave and what is possible to do overall. After that start with quick small plugins and gradually progress to more complex ones. ctor is a quick snippet to create constructor. Type ctor and press TAB on keyboard. For documenting code you can install GhostDoc, very handy plugin for Visual Studio. When you install it just type /// and it will automatically docent, class, function, property, interface, enum... Revit is 64 bit application so you should build same dlls. In build properties chose x64 or Any something, sorry forgot name of build presset. It should be fine. Btw chose also right .NET framework for your solution based on Revit version you are targeting. As an example chose .NET 4.8 for building Revit 2021 solutions. For other you can use 4.7.1 or 4.7.2 and you are good to go.

Also thank you for kind words. Hope you are going to find this videos/articles useful to get you going. Keep solution organized and gradually progress. Soon I will share link from my dear teamates that suibmited article for this years Autodesk University on subject of Revit API, modeless dialogs, WPF and external event mechanisms. They are experts in Revit API. ;)

@@MarkoKoljancic Thank you again for such a comprehensive answer. And the link you are about to share will be of great help as well. Thank you kindly.

Thanks for kind words Nasim. Enjoy it, soon I will continue adding more videos. :)

Hi Luong. Actually no. This was project that I start with purpose to learn DOPs in Houdini. I develop this script on Houdini 12 or 13. Years back, because of hard disk faillure I lost this scene. Should winish it one day. ;)

In the same project

@@jakoubichannel6676 Hello Mohamed. Of course, use this code and apply on your projects. It is under use however you want license. ;)

Hi Telliac, thanks for watching. I can help you if you provide me error message. Based on message I can dig into and find solution. Stay safe!

@@MarkoKoljancic Thank you for your reply ! Ok, I'm sorry that was not clear, "Cannot run the external application" is my error message. The entire message is very lon and i can't put it there. Maybe we can contact eachother to look at this in more detail. Thx for your help !

Thanks for kind words Nasim Naji. Can you share your code on my email so I can take a look. [email protected]

Hey man, I was facing the same issue, I was beating my brain out to solve it, but then I realize that it was missing a . on the ResourceImage class, on the line where the variable stream is defined. It's "Image.Icons." instead of "Image.Icons", maybe it's the same error on your case. it's been a long time you've asked it, but it might help someone else.

No audio, but I heavily documented code and pushed it to Bitbucket repository in description. Also you can find LinkedIn article links in video description of almost all videos. Hope this helps.

Does seem to imply that file path for the tooltip image cant be found although its were it should be.. // Create push button data and populate it with information. var TagWallLLayersBtnData = new PushButtonData("TagWallLLayerBtnData", "Tag Wall Layers", Assembly.GetExecutingAssembly().Location, "cbb.TagWallLayersCommand") { ToolTipImage = new BitmapImage(new Uri(@"C:\Users\musa_\Documents\cbb es\tooltip320x320")), ToolTip = "This is some sample tooltip text, replace it later...." }; var TagWallLLayersBtn = panelAnnotation.AddItem(TagWallLLayersBtnData) as PushButton; TagWallLLayersBtn.LargeImage = new BitmapImage(new Uri(@"C:\Users\musa_\Documents\cbb es\tooltip32x32")); return Result.Succeeded; } in Revit it says cant find C:\users\musa_\Documents\cbb es\tooltip32x32 If i add tooltip32x32".png" (IF thats the problem) it says the same thing..

@@tjugolapp Issue is that you are missing .png extension in file path. Try to change this lines: ToolTipImage = new BitmapImage(new Uri(@"C:\Users\musa_\Documents\cbb es\tooltip320x320.png")), TagWallLLayersBtn.LargeImage = new BitmapImage(new Uri(@"C:\Users\musa_\Documents\cbb es\tooltip32x32.png")); Notice that I added .png extension inside string. Tell if this helped. Stay good. ;)

@@MarkoKoljancic thanks for quick reply really appriciate it! On the subject, iv'e tried to add ''.png'' but it still doesnt find it. it still refers to the "C:\Users\musa_\Documents\cbb es\tooltip320x320" in revit. Not sure if it matters but when i make an image through photoshop it dosent name it .png it just gives it a name without the .png.

@@MarkoKoljancic ive solved it! I used the images from your blog! Not sure why mine wouldnt work tho.. Anyways amazing tutorial! Thanks! :)

Hi Claudio this series is recorded without audio. Code is heavily documented and I didn't skip any part of process. You can also find LinkedIn article in video description. I will try my best to record in future with voice over or even with subtitles. Hope this helps.

ok, thanks so much for the feedback.

@@claudiocesar2294 You're welcome.

No voice, but I heavily documented code and pushed it to Bitbucket repository. Also you can find LinkedIn article links in video description of almost all videos. Hope this helps.

@@MarkoKoljancic thank you very much!

It is my pleasure. Thanks for kind words. :) More videos on the way. ;)

After finishing series I'll upload final project. There will be public link with downloadable content. Just to catch some time to record series.

Thanks man, appreciate your subscription and nice comment. I'll make small detour to parametric family modeling and after that I plan to continue Revit API development series. I have ideas for new plugins. :)

@@MarkoKoljancic your video very helpfull. And I have one little question: how do you support multiversions Revit (2017,2018,2019....etc)?

I got it to work by changing this code : //var stream = ResourceAssembly.GetAssembly().GetManifestResourceStream(ResourceAssembly.GetNamespace() + "Images.Icons." + name); with this code: //Assembly asm = Assembly.GetExecutingAssembly(); //Stream stream = asm.GetManifestResourceStream(asm.GetManifestResourceNames().First(o => o.Contains(name))); so is it because i didnt implement the WPF correctly?

@@TheNillesen Cool, you managed to fix it by yourself. Your code will work as I see. This error indicates that Revit has problem with finding image at plugin loading stage, nothing to do with wpf or implementation of dockable pane. Can you please check if your image has checked Embedded Resource option when you loaded it in resource assembly/.dll. My idea is to have all resources fonts, images,.. in one .dll so that plugin depends only on that assembly not on external files. Code should work it is pretty much straight forward. Thumbs up for your version. :)

@@TheNillesen Thanks for posting, this worked for me as well! I tried Marko's tip for ensuring Embedded Resource is checked, but was still failing to load.

My pleasure.

Thanks. My pleasure.

Than probably problem is in .addin file and location if threre is no compile errors. Check .addin file content bitbucket.org/cbb_team/circles-bim-blog/src/178689411b6c6ec88360115b2d810989bdd01ca5/addin/?at=master copy it and paste in appropriate folder that Revit watches for plugin registration. Tell me if works now. If not we'll find another solution.

Hello Deivid, should be a strait forward process. Is there some error that you can share here so I can take a look at it. Also check code repository to easier see if you made some typo. bitbucket.org/cbb_team/circles-bim-blog/src/master/