private void inlineCompoundSymbolToolStripMenuItem_Click(object sender, EventArgs e)
        {
            var res = (ILayerDefinition)_edSvc.GetEditedResource();
            var vl  = (IVectorLayerDefinition)res.SubLayer;

            if (vl.SymbolDefinitionVersion == null)
            {
                throw new InvalidOperationException(Strings.ErrorLayerDefnitionDoesNotSupportCompositeSymbolization);
            }
            var csym = ObjectFactory.CreateCompoundSymbol(vl.SymbolDefinitionVersion,
                                                          "InlineCompoundSymbol",
                                                          Strings.TextInlineCompoundSymbol); //NOXLATE

            var instance = _comp.CreateInlineCompoundSymbol(csym);

            AddInstance(instance, true);
        }