Revit API判断是不是柱族模板

OwnerFamily即族模板。
获取类别的方法：
Document.Settings.Categories.get_Item(BuiltInCategory.OST_Columns);

//判断是不是柱族模板
[TransactionAttribute(Autodesk.Revit.Attributes.TransactionMode.Manual)]
public class cmdCheckFamily : IExternalCommand
{
    bool ValidateDocument(Document rvtDoc)
    {
        if (!rvtDoc.IsFamilyDocument)//判断是不是族文档
        {
            TaskDialog.Show("Family API", "This command works only in the family editor.");
            return false;
        }
        Family ownerFamily = rvtDoc.OwnerFamily;
        if (ownerFamily == null)//判断是否使用了族模板
        {
            TaskDialog.Show("Family API", "This document does not have Owner Family.");
            return false;
        }
        //取得族类别的方法
        Category catColumn = rvtDoc.Settings.Categories.get_Item(BuiltInCategory.OST_Columns);
        if (!ownerFamily.FamilyCategory.Id.Equals(catColumn.Id))
        {
            TaskDialog.Show("Family API", "The category of this document does not match the context of this commands. Please open Metric Column.rft");
            return false;
        }
        return true;
    }
    public Result Execute(ExternalCommandData commandData, ref string messages, ElementSet elements)
    {
        UIApplication app = commandData.Application;
        Document doc = app.ActiveUIDocument.Document;
        Selection sel = app.ActiveUIDocument.Selection;

        ValidateDocument(doc);

        return Result.Succeeded;
    }
}

url:http://www.cnblogs.com/greatverve/p/ValidateDocument.html