Add support for XDDF

OpenXmlFormats/Drawing/Chart/BarChart.cs

@@ -298,6 +298,37 @@ public CT_BarDir AddNewBarDir()
             this.barDirField = new CT_BarDir();
             return this.barDirField;
         }
+
+        public int SizeOfAxIdArray()
+        {
+            return axIdField.Count;
+        }
+
+        public bool IsSetVaryColors()
+        {
+            return this.varyColorsField != null;
+        }
+
+        public bool IsSetGrouping()
+        {
+            return this.groupingField != null;
+        }
+
+        public bool IsSetGapWidth()
+        {
+            return this.gapWidthField != null;
+        }
+
+        public CT_GapAmount AddNewGapWidth()
+        {
+            this.gapWidthField = new CT_GapAmount();
+            return this.gapWidthField;
+        }
+
+        public CT_UnsignedInt[] GetAxIdArray()
+        {
+            return [.. this.axIdField];
+        }
     }
 
 
@@ -772,6 +803,43 @@ public CT_NumDataSource AddNewVal()
             this.valField = new CT_NumDataSource();
             return this.valField;
         }
+
+        public CT_SerTx AddNewTx()
+        {
+            this.tx = new CT_SerTx();
+            return this.tx;
+        }
+
+        public bool IsSetTx()
+        {
+            return this.txField != null;
+        }
+
+        public bool IsSetDLbls()
+        {
+            return this.dLblsField != null;
+        }
+
+        public void AddNewDLbls()
+        {
+            this.dLblsField = new CT_DLbls();
+        }
+
+        public bool IsSetSpPr()
+        {
+            return this.spPrField != null;
+        }
+
+        public void UnsetSpPr()
+        {
+            this.spPrField = null;
+        }
+
+        public CT_ShapeProperties AddNewSpPr()
+        {
+            this.spPrField = new CT_ShapeProperties();
+            return this.spPrField;
+        }
     }