How to delete an element through API

[sravang]

I need to delete an element,what will be the best way to do it??

If I use method delete and pass element ID to it does it delete that element and also delete all relations for that element??

Thanks,

[Geert Bellekens]

Get the owning element or package
Loop the Elements collection of the owner
Use Collection.DeleteAt() to delete the element.

something like this (deletes all elements from a package)

Code: [Select]

dim j
for j = package.Elements.Count -1 to 0 step -1
package.Elements.DeleteAt j , false
next
All relations, tagged values, diagramobjects etc.. will automatically be deleted by EA.

Geert

[sravang]

Above mentioned one deletes all the element of the package but I need to delete element of only particular ID and make sure all relations of that element are also deleted.

I mean is there a way I can pass element ID and delete that element from the package??

Thanks,

[Geert Bellekens]

Yeah, simply test the ID of each element in the loop to match your element ID and only delete if it matches.

Geert

[sravang]

Yes got it.

Thanks,

[Slávek Rydval]

Be aware of the parent of the deleted element. If it is greater than zero then the element is not listed in Package.Elements but Parent Element.Elements. Thus this code (in C#) is more robust.

Code: [Select]

        public static void DeleteElement(EA.Repository Repository, EA.Element Element)
        {
            EA.Collection elements;

            if (Element.ParentID > 0)
                elements = Repository.GetElementByID(Element.ParentID).Elements;
            else
                elements = Repository.GetPackageByID(Element.PackageID).Elements;

            for (short i = (short)(elements.Count-1); i >= 0; i--)
            {
                if (((EA.Element)elements.GetAt(i)).ElementID == Element.ElementID)
                {
                    elements.DeleteAt(i, false);
                    return;
                }
            }
        }