Allow adding and removing HyperlinkRun and FieldRun

OpenXmlFormats/Wordprocessing/Paragraph.cs

@@ -6,6 +6,7 @@
 using System.IO;
 using NPOI.OpenXml4Net.Util;
 using System.Collections;
+using System.CodeDom;
 
 namespace NPOI.OpenXmlFormats.Wordprocessing
 {
@@ -171,12 +172,16 @@ public static CT_P Parse(XmlNode node, XmlNamespaceManager namespaceManager)
                 }
                 else if (childNode.LocalName == "fldSimple")
                 {
-                    ctObj.Items.Add(CT_SimpleField.Parse(childNode, namespaceManager));
+                    var sf = CT_SimpleField.Parse(childNode, namespaceManager);
+                    sf.parent = ctObj;
+                    ctObj.Items.Add(sf);
                     ctObj.ItemsElementName.Add(ParagraphItemsChoiceType.fldSimple);
                 }
                 else if (childNode.LocalName == "hyperlink")
                 {
-                    ctObj.Items.Add(CT_Hyperlink1.Parse(childNode, namespaceManager));
+                    var hl=CT_Hyperlink1.Parse(childNode, namespaceManager);
+                    hl.parent = ctObj;
+                    ctObj.Items.Add(hl);
                     ctObj.ItemsElementName.Add(ParagraphItemsChoiceType.hyperlink);
                 }
                 else if (childNode.LocalName == "ins")
@@ -247,7 +252,40 @@ public bool IsSetRsidR()
         {
             return this.rsidRField != null && rsidRField.Length > 0;
         }
-
+        public void RemoveHyperlink(CT_Hyperlink1 hl)
+        {
+            int index=-1;
+            for(int i = 0; i<Items.Count; i++)
+            {
+                if(Items[i].Equals(hl))
+                {
+                    index=i;
+                    break;
+                }
+            }
+            if(index>=0)
+            {
+                Items.RemoveAt(index);
+                ItemsElementName.RemoveAt(index);
+            }
+        }
+        public void RemoveSimpleField(CT_SimpleField sf)
+        {
+            int index=-1;
+            for(int i = 0; i<Items.Count; i++)
+            {
+                if(Items[i].Equals(sf))
+                {
+                    index=i;
+                    break;
+                }
+            }
+            if(index>=0)
+            {
+                Items.RemoveAt(index);
+                ItemsElementName.RemoveAt(index);
+            }
+        }
         internal void Write(StreamWriter sw, string nodeName)
         {
             sw.Write(string.Format("<w:{0}", nodeName));

OpenXmlFormats/Wordprocessing/wml.cs

@@ -1724,6 +1724,7 @@ public class CT_SimpleField
         private ST_OnOff dirtyField;
 
         private bool dirtyFieldSpecified;
+        internal CT_P parent;
 
         public CT_SimpleField()
         {
@@ -1732,6 +1733,13 @@ public CT_SimpleField()
             //this.fldDataField = new CT_Text();
         }
 
+        public CT_R AddNewR()
+        { 
+            CT_R r = new CT_R();
+            this.itemsField.Add(r);
+            return r;
+        }
+
         [XmlElement(Order = 0)]
         public CT_Text fldData
         {
@@ -1744,6 +1752,17 @@ public CT_Text fldData
                 this.fldDataField = value;
             }
         }
+        public CT_P Parent
+        {
+            get
+            {
+                return parent;
+            }
+            set
+            {
+                parent=value;
+            }
+        }
         public static CT_SimpleField Parse(XmlNode node, XmlNamespaceManager namespaceManager)
         {
             if (node == null)
@@ -2349,11 +2368,23 @@ public class CT_Hyperlink1
 
         private string idField;
 
+        internal CT_P parent;
+
         public CT_Hyperlink1()
         {
             this.itemsElementNameField = new List<ItemsChoiceType12>();
             this.itemsField = new ArrayList();
         }
+        public CT_P Parent
+        {
+            get
+            {
+                return parent;
+            }
+            set {
+                parent=value;
+            }
+        }
         public static CT_Hyperlink1 Parse(XmlNode node, XmlNamespaceManager namespaceManager)
         {
             if (node == null)
@@ -2658,6 +2689,18 @@ public ArrayList Items
             }
         }
 
+        public CT_R AddNewR()
+        {
+            CT_R r = new CT_R();
+            this.Items.Add(r);
+            return r;
+        }
+
+        public CT_R GetRArray(int index)
+        { 
+            return this.itemsField[index] as CT_R;
+        }
+
         [XmlElement("ItemsElementName", Order = 1)]
         [XmlIgnore]
         public List<ItemsChoiceType12> ItemsElementName

ooxml/XWPF/Usermodel/XWPFDocument.cs

@@ -459,6 +459,17 @@ public XWPFHyperlink GetHyperlinkByID(String id)
                     return link;
             }
 
+            // If the link was not found, rebuild the list (maybe a new link was added into the document) and check again.
+            InitHyperlinks();
+            foreach(XWPFHyperlink link in hyperlinks)
+            {
+                if(link.Id.Equals(id))
+                {
+                    return link;
+                }
+            }
+            // Link still not there? Giving up.
+
             return null;
         }