System.Xml.Xsl.XsltOld.Stylesheet.AddAttributeSet C# (CSharp) Method

        internal void AddAttributeSet(AttributeSetAction attributeSet) {
            Debug.Assert(attributeSet.Name != null);
            if (this.attributeSetTable == null) {
                this.attributeSetTable = new Hashtable();
            }
            Debug.Assert(this.attributeSetTable != null);

            if (this.attributeSetTable.ContainsKey(attributeSet.Name) == false) {
                this.attributeSetTable[attributeSet.Name] = attributeSet;
            }
            else {
                // merge the attribute-sets
                ((AttributeSetAction)this.attributeSetTable[attributeSet.Name]).Merge(attributeSet);
            }
        }