Fixed a bug with InsertParagraphAfterSelf and InsertParagraphBeforeSelf.

Big thanks to np83 not only for finding this bug but also posting a fix and unit tests.

ConsoleApplication3/ConsoleApplication3.csproj

+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">x86</Platform>
+    <ProductVersion>8.0.30703</ProductVersion>
+    <SchemaVersion>2.0</SchemaVersion>
+    <ProjectGuid>{8A8EACDE-66DD-4F07-83C3-7E2241942A36}</ProjectGuid>
+    <OutputType>Exe</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>ConsoleApplication3</RootNamespace>
+    <AssemblyName>ConsoleApplication3</AssemblyName>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkProfile>Client</TargetFrameworkProfile>
+    <FileAlignment>512</FileAlignment>
+    <SccProjectName>SAK</SccProjectName>
+    <SccLocalPath>SAK</SccLocalPath>
+    <SccAuxPath>SAK</SccAuxPath>
+    <SccProvider>SAK</SccProvider>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|x86' ">
+    <PlatformTarget>x86</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|x86' ">
+    <PlatformTarget>x86</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Drawing" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\DocX\DocX.csproj">
+      <Project>{E863D072-AA8B-4108-B5F1-785241B37F67}</Project>
+      <Name>DocX</Name>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+</Project>

ConsoleApplication3/ConsoleApplication3.csproj.vspscc

+""
+{
+"FILE_VERSION" = "9237"
+"ENLISTMENT_CHOICE" = "NEVER"
+"PROJECT_FILE_RELATIVE_PATH" = ""
+"NUMBER_OF_EXCLUDED_FILES" = "0"
+"ORIGINAL_PROJECT_FILE_PATH" = ""
+"NUMBER_OF_NESTED_PROJECTS" = "0"
+"SOURCE_CONTROL_SETTINGS_PROVIDER" = "PROVIDER"
+}

ConsoleApplication3/Program.cs

+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Novacode;
+using System.Drawing;
+
+namespace ConsoleApplication3
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            // Create a new document.
+            using (DocX document = DocX.Create(@"Test.docx"))
+            {
+                // Add Headers to the document.
+                document.AddHeaders();
+                document.AddHeaders();
+
+                // Save the document.
+                document.Save();
+            }
+        }
+    }
+}

ConsoleApplication3/Properties/AssemblyInfo.cs

+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("ConsoleApplication3")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("ConsoleApplication3")]
+[assembly: AssemblyCopyright("Copyright ©  2010")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible 
+// to COM components.  If you need to access a type in this assembly from 
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("7eb1e4cd-eb7d-43bc-8248-22fedacc46e6")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version 
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers 
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

DocX/DocX.cs

           }
           finally
           {
-            this.package.Flush();
+              this.package.Flush();
             var documentRelsPart = this.package.GetPart(new Uri("/word/_rels/document.xml.rels", UriKind.Relative));
             using (TextReader tr = new StreamReader(documentRelsPart.GetStream(FileMode.Open, FileAccess.Read)))
             {

DocX/Paragraph.cs

         /// </example>
         public override Paragraph InsertParagraphBeforeSelf(Paragraph p)
         {
-            return base.InsertParagraphBeforeSelf(p);
+            Paragraph p2 = base.InsertParagraphBeforeSelf(p);
+            p2.PackagePart = mainPart;
+            return p2;
         }
 
         /// <summary>
         /// </example>
         public Paragraph InsertParagraphBeforeSelf(string text)
         {
-            return InsertParagraphBeforeSelf(text, false, null);
+            Paragraph p = base.InsertParagraphBeforeSelf(text);
+            p.PackagePart = mainPart;
+            return p;
         }
 
         /// <summary>
         /// </example>
         public override Paragraph InsertParagraphBeforeSelf(string text, bool trackChanges)
         {
-            return base.InsertParagraphBeforeSelf(text, trackChanges);
+            Paragraph p = base.InsertParagraphBeforeSelf(text, trackChanges);
+            p.PackagePart = mainPart;
+            return p;
         }
 
         /// <summary>
         /// </example>
         public override Paragraph InsertParagraphBeforeSelf(string text, bool trackChanges, Formatting formatting)
         {
-            return base.InsertParagraphBeforeSelf(text, trackChanges, formatting);
+            Paragraph p = base.InsertParagraphBeforeSelf(text, trackChanges, formatting);
+            p.PackagePart = mainPart;
+            return p;
         }
 
         /// <summary>
         /// </example>
         public override Paragraph InsertParagraphAfterSelf(Paragraph p)
         {
-            return base.InsertParagraphAfterSelf(p);
+            Paragraph p2 = base.InsertParagraphAfterSelf(p);
+            p2.PackagePart = mainPart;
+            return p2;
         }
 
         /// <summary>
         /// </example>
         public override Paragraph InsertParagraphAfterSelf(string text, bool trackChanges, Formatting formatting)
         {
-            return base.InsertParagraphAfterSelf(text, trackChanges, formatting);
+            Paragraph p = base.InsertParagraphAfterSelf(text, trackChanges, formatting);
+            p.PackagePart = mainPart;
+            return p;
         }
 
         /// <summary>
         /// </example>
         public override Paragraph InsertParagraphAfterSelf(string text, bool trackChanges)
         {
-            return base.InsertParagraphAfterSelf(text, trackChanges);
+            Paragraph p = base.InsertParagraphAfterSelf(text, trackChanges);
+            p.PackagePart = mainPart;
+            return p;
         }
 
         /// <summary>
         /// </example>
         public override Paragraph InsertParagraphAfterSelf(string text)
         {
-            return base.InsertParagraphAfterSelf(text);
+            Paragraph p = base.InsertParagraphAfterSelf(text);
+            p.PackagePart = mainPart;
+            return p;
         }
 
         private void RebuildDocProperties()

DocX/_BaseClasses.cs

                 newParagraph = Paragraph.CreateEdit(EditType.ins, DateTime.Now, newParagraph);
 
             Xml.AddBeforeSelf(newParagraph);
-            XElement newlyInserted = Xml.ElementsBeforeSelf().First();
+            XElement newlyInserted = Xml.ElementsBeforeSelf().Last();
 
             Paragraph p = new Paragraph(Document, newlyInserted, -1);
 

UnitTests/UnitTest1.cs

             }
         }
 
+        [TestMethod]
+        public void Test_Insert_Picture_ParagraphBeforeSelf()
+        {
+            // Create test document.
+            using (DocX document = DocX.Create(directory_documents + "Test.docx"))
+            {
+                // Add an Image to this document.
+                Novacode.Image img = document.AddImage(directory_documents + "purple.png");
+
+                // Create a Picture from this Image.
+                Picture pic = img.CreatePicture();
+                Assert.IsNotNull(pic);
+
+                // Main document.
+                Paragraph p0 = document.InsertParagraph("Hello");
+                Paragraph p1 = p0.InsertParagraphBeforeSelf("again");
+                p1.InsertPicture(pic, 3);
+
+                // Save this document.
+                document.Save();
+            }
+        }
+
+        [TestMethod]
+        public void Test_Insert_Picture_ParagraphAfterSelf()
+        {
+            // Create test document.
+            using (DocX document = DocX.Create(directory_documents + "Test.docx"))
+            {
+                // Add an Image to this document.
+                Novacode.Image img = document.AddImage(directory_documents + "purple.png");
+
+                // Create a Picture from this Image.
+                Picture pic = img.CreatePicture();
+                Assert.IsNotNull(pic);
+
+                // Main document.
+                Paragraph p0 = document.InsertParagraph("Hello");
+                Paragraph p1 = p0.InsertParagraphAfterSelf("again");
+                p1.InsertPicture(pic, 3);
+
+                // Save this document.
+                document.Save();
+            }
+        }
+
         [TestMethod]
         public void Test_EverybodyHasAHome_Created()
         {