ES-846413 - Add the sample Merge_markdown_during_mail_merge

Mail-Merge/Merge-markdown-during-mail-merge/.NET/Merge-markdown-during-mail-merge.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.31911.196
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Merge-markdown-during-mail-merge", "Merge-markdown-during-mail-merge\Merge-markdown-during-mail-merge.csproj", "{38FB99D1-DB4A-4A3F-B90B-7135724337EF}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{38FB99D1-DB4A-4A3F-B90B-7135724337EF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{38FB99D1-DB4A-4A3F-B90B-7135724337EF}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{38FB99D1-DB4A-4A3F-B90B-7135724337EF}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{38FB99D1-DB4A-4A3F-B90B-7135724337EF}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {B75368E1-9546-4CD5-BE4C-5C905E8D16C2}
+	EndGlobalSection
+EndGlobal

Mail-Merge/Merge-markdown-during-mail-merge/.NET/Merge-markdown-during-mail-merge/Merge-markdown-during-mail-merge.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <RootNamespace>Merge_markdown_during_mail_merge</RootNamespace>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Syncfusion.DocIO.Net.Core" Version="*" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Update="Data\Template.docx">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+    <None Update="Output\.gitkeep">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+
+</Project>

Mail-Merge/Merge-markdown-during-mail-merge/.NET/Merge-markdown-during-mail-merge/Output/.gitkeep

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+

Mail-Merge/Merge-markdown-during-mail-merge/.NET/Merge-markdown-during-mail-merge/Program.cs

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+using Syncfusion.DocIO;
+using Syncfusion.DocIO.DLS;
+using System.Collections.Generic;
+using System.Data;
+using System.IO;
+using System.Text;
+
+namespace Merge_markdown_during_mail_merge
+{
+    class Program
+    {
+        static Dictionary<WParagraph, Dictionary<int, string>> paraToInsertMarkdown = new Dictionary<WParagraph, Dictionary<int, string>>();
+        static void Main(string[] args)
+        {          
+            using (FileStream inputFileStream = new FileStream(Path.GetFullPath(@"Data/Template.docx"), FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
+            {
+                //Opens an existing document from stream through constructor of `WordDocument` class.
+                using (WordDocument document = new WordDocument(inputFileStream, FormatType.Automatic))
+                {
+                    //Creates mail merge events handler to replace merge field with HTML.
+                    document.MailMerge.MergeField += new MergeFieldEventHandler(MergeFieldEvent);
+                    //Gets data to perform mail merge.
+                    DataTable table = GetDataTable();
+                    //Performs the mail merge.
+                    document.MailMerge.Execute(table);
+                    //Append Markdown to paragraph.
+                    InsertMarkdown();
+                    //Removes mail merge events handler.
+                    document.MailMerge.MergeField -= new MergeFieldEventHandler(MergeFieldEvent);
+                    //Creates file stream.
+                    using (FileStream outputFileStream = new FileStream(Path.GetFullPath(@"Output/Result.docx"), FileMode.Create, FileAccess.ReadWrite))
+                    {
+                        //Saves the Word document to file stream.
+                        document.Save(outputFileStream, FormatType.Docx);
+                    }
+                    //Closes the document.
+                    document.Close();
+                }
+            }
+        }
+
+        #region Helper methods
+        /// <summary>
+        /// Replaces merge field with Markdown string by using MergeFieldEventHandler.
+        /// </summary>
+        /// <param name="sender"></param>
+        /// <param name="args"></param>
+        public static void MergeFieldEvent(object sender, MergeFieldEventArgs args)
+        {
+            if (args.TableName.Equals("Markdown"))
+            {
+                if (args.FieldName.Equals("ProductList"))
+                {
+                    //Gets the current merge field owner paragraph.
+                    WParagraph paragraph = args.CurrentMergeField.OwnerParagraph;
+                    //Gets the current merge field index in the current paragraph.
+                    int mergeFieldIndex = paragraph.ChildEntities.IndexOf(args.CurrentMergeField);
+                    //Maintain Markdown in collection.
+                    Dictionary<int, string> fieldValues = new Dictionary<int, string>();
+                    fieldValues.Add(mergeFieldIndex, args.FieldValue.ToString());
+                    //Maintain paragraph in collection.
+                    paraToInsertMarkdown.Add(paragraph, fieldValues);
+                    //Set field value as empty.
+                    args.Text = string.Empty;
+                }
+            }
+        }
+        /// <summary>
+        /// Gets the data to perform mail merge
+        /// </summary>
+        /// <returns></returns>
+        private static DataTable GetDataTable()
+        {
+            DataTable dataTable = new DataTable("Markdown");
+            dataTable.Columns.Add("CustomerName");
+            dataTable.Columns.Add("Address");
+            dataTable.Columns.Add("Phone");
+            dataTable.Columns.Add("ProductList");
+            DataRow datarow = dataTable.NewRow();
+            dataTable.Rows.Add(datarow);
+            datarow["CustomerName"] = "Nancy Davolio";
+            datarow["Address"] = "59 rue de I'Abbaye, Reims 51100, France";
+            datarow["Phone"] = "1-888-936-8638";
+            //Markdown content.
+            string markdown = "# Hello Markdown!\nThis is some **bold** text.";
+            datarow["ProductList"] = markdown;
+            return dataTable;
+        }
+        /// <summary>
+        /// Append Markdown to paragraph.
+        /// </summary>
+        private static void InsertMarkdown()
+        {
+            //Iterates through each item in the dictionary.
+            foreach (KeyValuePair<WParagraph, Dictionary<int, string>> dictionaryItems in paraToInsertMarkdown)
+            {
+                WParagraph paragraph = dictionaryItems.Key as WParagraph;
+                Dictionary<int, string> values = dictionaryItems.Value as Dictionary<int, string>;
+                //Iterates through each value in the dictionary.
+                foreach (KeyValuePair<int, string> valuePair in values)
+                {
+                    int index = valuePair.Key;
+                    string fieldValue = valuePair.Value;
+                    // Convert the markdown string to bytes using UTF-8 encoding
+                    byte[] contentBytes = Encoding.UTF8.GetBytes(fieldValue);
+
+                    // Create a MemoryStream from the content bytes
+                    using (MemoryStream memoryStream = new MemoryStream(contentBytes))
+                    {
+                        //Open the markdown Word document
+                        using (WordDocument markdownDoc = new WordDocument(memoryStream, FormatType.Markdown))
+                        {
+                            TextBodyPart bodyPart = new TextBodyPart(paragraph.OwnerTextBody.Document);
+                            BodyItemCollection m_bodyItems = bodyPart.BodyItems;
+                            //Copy and paste the markdown at the same position of mergefield in Word document.
+                            foreach (Entity entity in markdownDoc.LastSection.Body.ChildEntities)
+                            {
+                                m_bodyItems.Add(entity.Clone());
+                            }
+                            bodyPart.PasteAt(paragraph.OwnerTextBody, paragraph.OwnerTextBody.ChildEntities.IndexOf(paragraph), index);
+                        }
+                    }
+                }
+            }
+            paraToInsertMarkdown.Clear();
+        }
+        #endregion
+    }
+}