entity.MetaEditor2.MetaEditorControlPage.tsExternalReferenceAdd_Click C# (CSharp) Method

        private void tsExternalReferenceAdd_Click(object sender, EventArgs e)
        {
            TreeNode tn = treeViewTagReflexives.SelectedNode;
            reflexiveData rd = (reflexiveData)tn.Tag;
            if (rd.reflexive == null)
            {
                MessageBox.Show("Not a reflexive!");
                return;
            }

            WinMetaEditor.references refs = new WinMetaEditor.references();
            if (rd.inTagNumber == this.meta.TagIndex)
            {
                refs.ident = this.meta.offset + rd.baseOffset + this.meta.magic;
                refs.offset = rd.baseOffset;
                refs.tagIndex = this.meta.TagIndex;
                refs.tagName = this.meta.name;
                refs.tagType = this.meta.type;
            }
            else
            {
                refs.tagIndex = map.Functions.ForMeta.FindMetaByOffset(rd.baseOffset);
                Meta m = new Meta(map);
                map.OpenMap(MapTypes.Internal);
                m.ReadMetaFromMap(refs.tagIndex, true);
                map.CloseMap();
                refs.ident = rd.baseOffset + m.magic;
                refs.offset = rd.baseOffset;
                refs.tagName = m.name;
                refs.tagType = m.type;
                m.Dispose();
            }
            refs.chunkCount = rd.chunkCount;
            refs.size = rd.reflexive.chunkSize;
            refs.name = rd.reflexive.name;

            // Check for duplicates & remove
            List<WinMetaEditor.references> refList = ((WinMetaEditor)this.ParentForm).reflexiveReferences;
            for (int i = 0; i < refList.Count; i++)
            {
                if (refList[i].ident == refs.ident)
                    refList.RemoveAt(i--);
            }

            // Always add to top of list
            refList.Insert(0, refs);
        }