/// <summary>
/// Gets the mail merge data set.
/// </summary>
/// <returns></returns>
/// <exception cref="System.Exception">reader</exception>
/// <exception cref="XmlException">Unexpected xml tag + reader.LocalName</exception>
private MailMergeDataSet GetMailMergeDataSet(string basePath)
{
List <EmployeeDetails> employees = new List <EmployeeDetails>();
List <CustomerDetails> customers = new List <CustomerDetails>();
List <OrderDetails> orders = new List <OrderDetails>();
FileStream stream = new FileStream(basePath + @"/DocIO/Employees.xml", FileMode.OpenOrCreate);
XmlReader reader = XmlReader.Create(stream);
if (reader == null)
{
throw new Exception("reader");
}
while (reader.NodeType != XmlNodeType.Element)
{
reader.Read();
}
if (reader.LocalName != "EmployeesList")
{
throw new XmlException("Unexpected xml tag " + reader.LocalName);
}
reader.Read();
while (reader.NodeType == XmlNodeType.Whitespace)
{
reader.Read();
}
while (reader.LocalName != "EmployeesList")
{
if (reader.NodeType == XmlNodeType.Element)
{
switch (reader.LocalName)
{
case "Employees":
employees.Add(GetEmployee(reader, customers, orders));
break;
}
}
else
{
reader.Read();
if ((reader.LocalName == "EmployeesList") && reader.NodeType == XmlNodeType.EndElement)
{
break;
}
}
}
reader.Dispose();
stream.Dispose();
MailMergeDataSet dataSet = new MailMergeDataSet();
dataSet.Add(new MailMergeDataTable("Employees", employees));
dataSet.Add(new MailMergeDataTable("Customers", customers));
dataSet.Add(new MailMergeDataTable("Orders", orders));
return(dataSet);
}
/// <summary>
/// Gets the mail merge data set.
/// </summary>
/// <returns></returns>
/// <exception cref="System.Exception">reader</exception>
/// <exception cref="XmlException">Unexpected xml tag + reader.LocalName</exception>
private MailMergeDataSet GetMailMergeDataSet()
{
List <EmployeeDetails> employees = new List <EmployeeDetails>();
List <CustomerDetails> customers = new List <CustomerDetails>();
List <OrderDetails> orders = new List <OrderDetails>();
Stream stream = execAssm.GetManifestResourceStream("Syncfusion.SampleBrowser.UWP.DocIO.DocIO.Assets.Employees.xml");
XmlReader reader = XmlReader.Create(stream);
if (reader == null)
{
throw new Exception("reader");
}
while (reader.NodeType != XmlNodeType.Element)
{
reader.Read();
}
if (reader.LocalName != "EmployeesList")
{
throw new XmlException("Unexpected xml tag " + reader.LocalName);
}
reader.Read();
while (reader.NodeType == XmlNodeType.Whitespace)
{
reader.Read();
}
while (reader.LocalName != "EmployeesList")
{
if (reader.NodeType == XmlNodeType.Element)
{
switch (reader.LocalName)
{
case "Employees":
employees.Add(GetEmployee(reader, customers, orders));
break;
}
}
else
{
reader.Read();
if ((reader.LocalName == "EmployeesList") && reader.NodeType == XmlNodeType.EndElement)
{
break;
}
}
}
reader.Dispose();
stream.Dispose();
MailMergeDataSet dataSet = new MailMergeDataSet();
dataSet.Add(new MailMergeDataTable("Employees", employees));
dataSet.Add(new MailMergeDataTable("Customers", customers));
dataSet.Add(new MailMergeDataTable("Orders", orders));
return(dataSet);
}
/// <summary>
/// generate word document as an asynchronous operation.
/// </summary>
/// <param name="documentRequest">The document request.</param>
/// <param name="exportAsPdf">if set to <c>true</c> [export as PDF].</param>
/// <param name="cancellationToken">The cancellation token that can be used by other objects or threads to receive notice of cancellation.</param>
/// <returns>Task.</returns>
public Task <Stream> GenerateDocumentAsync <TDocument, TDetails>(DocumentRequest <TDocument, TDetails> documentRequest, bool exportAsPdf = false, CancellationToken cancellationToken = default)
{
Argument.IsNotNull(documentRequest);
Stream result = new MemoryStream();
WordDocument document = null;
try
{
if (documentRequest.Template is byte[] templateBytes && templateBytes.ToMemoryStream() is MemoryStream stream)
{
using (document = new WordDocument(stream, Syncfusion.DocIO.FormatType.Docx))
{
if (documentRequest.Stationary is byte[] imageArray && imageArray.Length > 0)
{
//Adds picture watermark to the document.
var section = document.Sections[0];
var paragraph = section.HeadersFooters.Header.AddParagraph();
var picture = paragraph.AppendPicture(imageArray);
picture.TextWrappingStyle = TextWrappingStyle.Behind;
picture.Width = section.PageSetup.PageSize.Width;
picture.Height = section.PageSetup.PageSize.Height;
picture.HorizontalOrigin = HorizontalOrigin.Page;
picture.VerticalOrigin = VerticalOrigin.Page;
}
var dataSet = new MailMergeDataSet();
var commands = new List <DictionaryEntry>();
var documentDataTable = new MailMergeDataTable(nameof(documentRequest.Document), documentRequest.Document);
dataSet.Add(documentDataTable);
commands.Add(new DictionaryEntry(documentDataTable.GroupName, string.Empty));
var detailsDataTable = new MailMergeDataTable(nameof(documentRequest.DocumentDetails), documentRequest.DocumentDetails);
dataSet.Add(detailsDataTable);
commands.Add(new DictionaryEntry(detailsDataTable.GroupName, string.Empty));
var alternativesDataTable = new MailMergeDataTable(nameof(documentRequest.DocumentAlternatives), documentRequest.DocumentAlternatives);
dataSet.Add(alternativesDataTable);
commands.Add(new DictionaryEntry(alternativesDataTable.GroupName, string.Empty));
document.MailMerge.MergeImageField += MergeImageField;
document.MailMerge.RemoveEmptyParagraphs = true;
document.MailMerge.ExecuteNestedGroup(dataSet, commands);
foreach (var paragraph in mailMergeImgaeParagraph.EnsureNotNull())
{
if (paragraph.ChildEntities is not null)
{
foreach (ParagraphItem paraItem in paragraph.ChildEntities)
{
if (paraItem is WPicture picture && paragraph.OwnerTextBody is WTableCell cell)
{
//Get the cell width and reduce the 5 points from total width
//to avoid the image overlapping on the cell borders.
var newWidth = cell.Width - 10;
//Check whether the image width exceeds the cell width.
if (picture.Width > newWidth)
{
var originalWidth = picture.Width;
var originalHeight = picture.Height;
var nPercentH = newWidth / originalWidth;
//Scaling the image to the cell width.
picture.Height = Math.Max((int)Math.Round(originalHeight * nPercentH), 1) - 10; // Just in case;
picture.Width = newWidth;
}
break;
}
}
}
}
if (exportAsPdf)
{
using (var iORenderer = new DocIORenderer())
{
iORenderer.Settings.ChartRenderingOptions.ImageFormat = Syncfusion.OfficeChart.ExportImageFormat.Jpeg;
iORenderer.Settings.EmbedFonts = true;
var pdfDocument = iORenderer.ConvertToPDF(document);
pdfDocument.Save(result);
pdfDocument.Close();
};
}
else
{
document.Save(result, Syncfusion.DocIO.FormatType.Docx);
}
}
}
}
finally
{
result.Position = 0;
if (document is not null)
{
document.Close();
}
}
return(Task.FromResult(result));
}
