Modify properties in Columns

[Anonymous]

I am trying getting the "Columns" of model with a method that receive a Category how parameter. Then, with a "for" modify the value in two properties of all Columns.

See code:

public void GenerateFormworkToElements(string category)
        {
            SubTransaction createFormwork = new SubTransaction(m_revit.ActiveUIDocument.Document);
            try
            {
                createFormwork.Start();          
    
		//Parameter is a Category
                if (category == "Structural Columns")
                {
                    //Here to find the columns y modify the properties

                }
                createFormwork.Commit();
            }
            catch (Exception ex)
            {
                TaskDialog.Show("GenerateFormworkToElements", "Error = " + ex.Message);
                createFormwork.RollBack();
            }

        }

 The following are properties to change:

Thanks for your help.

David

[jeremytammik]

Dear David,

If you are new to the Revit API, the first thing to do is to work through the getting started material, especially the 'My First Revit Plug-in' and DevTV tutorials:

http://thebuildingcoder.typepad.com/blog/about-the-author.html#2

Getting started includes installing the SDK and RevitLookup, a very important Revit project database exploration tool.

Here are some recent other notes on getting started:

http://thebuildingcoder.typepad.com/blog/2015/01/cloud-accelerator-and-more-revit-stuff.html#3

I promise you that working through that material will make the answer to your question completely obvious.

Have fun!

Best regards,

Jeremy

[Anonymous]

Hi Jeremy:

I am relatively new, but I won experience doing my first Add-in.

My question is specifically el code that get the all columns of a model according to parameter "Category" (see code up). If you may help me It would be great.

I will revise the information that you've shared.

Thanks very much.

Regards

David

[Anonymous]

Hi,

Here goes the code:

FilteredElementCollector collector
= new FilteredElementCollector(doc)
.OfClass(typeof(FamilyInstance));

foreach (FamilyInstance fi in collector)
{

       if (fi.StructuralType == StructuralType.Column)
        {

           do you work here

        }

}

[Anonymous]

Hi,

Thanks very much for responding. The code works good.

How can getting of a Element the value the properties and shared parameters?. See image.

I am using the code following, but not woks:

 foreach (FamilyInstance fi in collector)
                    {

                        if (fi.StructuralType == StructuralType.Column)
                        {

//Get parameter "GyM Categoría"
                            Parameter gymCategoria = fi.get_Parameter(BuiltInParameter.ALL_MODEL_INSTANCE_COMMENTS);
                            gymCategoria = fi.LookupParameter("Categoria GyM");

}
}

Thanks for you help.