// Fourth stage. For each Order ID create a detailed document that will be inserted in place of the DOCVARIABLE field.
// This is the final stage and the Product.Orders template does not contain DOCVARIABLE fields. So, further processing is not required.
void richServerDetail_CalculateDocumentVariable(object sender, CalculateDocumentVariableEventArgs e)
{
int currentProductID = GetID(e.Arguments[0].Value);
if (currentProductID == -1)
{
return;
}
if (productID != currentProductID)
{
// Get data source that contains orders for the specified product.
// The data source is obtained from the data already filtered by supplier.
dataDetailedForOrders = GetOrderDataFilteredbyProductAndSupplier(currentProductID);
productID = currentProductID;
}
if (e.VariableName == "OrderDetails")
{
RichEditDocumentServer richServerDetailDetail = new RichEditDocumentServer();
MailMergeOptions options = ordersRichEdit.CreateMailMergeOptions();
options.DataSource = dataDetailedForOrders;
options.MergeMode = MergeMode.JoinTables;
ordersRichEdit.MailMerge(options, richServerDetailDetail);
e.Value = richServerDetailDetail;
e.Handled = true;
}
}
private Stream ExecuteMerge(string templateName, DocumentFormat documentFormat)
{
Stream result = new MemoryStream();
MailMergeOptions mailMergeOptions = documentServer.CreateMailMergeOptions();
if (templateName == "preview1")
{
documentServer.LoadDocument(Page.MapPath("~/App_Data/InvoicesDetail.rtf"));
List <Invoice> invoices = new List <Invoice>(10);
invoices.Add(new Invoice(0, "Invoice1", 10.0m));
invoices.Add(new Invoice(1, "Invoice2", 15.0m));
invoices.Add(new Invoice(2, "Invoice3", 20.0m));
mailMergeOptions.DataSource = invoices;
}
else if (templateName == "preview2")
{
documentServer.LoadDocument(Page.MapPath("~/App_Data/SamplesDetail.rtf"));
mailMergeOptions.DataSource = ManualDataSet.CreateData().Tables[0];
}
else if (templateName == "all")
{
Stream part1 = ExecuteMerge("preview1", documentFormat);
Stream part2 = ExecuteMerge("preview2", documentFormat);
part1.Seek(0, SeekOrigin.Begin);
part2.Seek(0, SeekOrigin.Begin);
documentServer.LoadDocument(part1, documentFormat);
documentServer.Document.AppendDocumentContent(part2, documentFormat);
documentServer.SaveDocument(result, documentFormat);
return(result);
}
documentServer.Options.MailMerge.ViewMergedData = true;
documentServer.Options.Export.Html.EmbedImages = true;
mailMergeOptions.MergeMode = MergeMode.JoinTables;
documentServer.MailMerge(mailMergeOptions, result, documentFormat);
return(result);
}
void OnCalculateDocumentVariable(object sender, CalculateDocumentVariableEventArgs e)
{
if (Order == null || e.VariableName != "Products")
{
return;
}
using (var server = new RichEditDocumentServer()) {
using (var stream = MailMergeTemplatesHelper.GetTemplateStream("Sales Order Follow-Up Detail.rtf")) {
server.LoadDocument(stream, DocumentFormat.Rtf);
var options = server.CreateMailMergeOptions();
options.DataSource = Order.OrderItems;
server.MailMerge(options, detailTemplate.Document);
}
}
e.Value = detailTemplate;
e.KeepLastParagraph = true;
e.Handled = true;
}
// Third stage. For each Product ID create a detailed document that will be inserted in place of the DOCVARIABLE field.
void richServerMaster_CalculateDocumentVariable(object sender, CalculateDocumentVariableEventArgs e)
{
int currentSupplierID = GetID(e.Arguments[0].Value);
if (currentSupplierID == -1)
{
return;
}
if (supplierID != currentSupplierID)
{
// Get data source that contains products for the specified supplier.
dataDetailedForProducts = GetProductsDataFilteredbySupplier(currentSupplierID);
supplierID = currentSupplierID;
}
if (e.VariableName == "Product")
{
// Create a text engine to process a document after the mail merge.
RichEditDocumentServer richServerDetail = new RichEditDocumentServer();
// Specify data source for mail merge.
MailMergeOptions options = productRichEdit.CreateMailMergeOptions();
options.DataSource = dataDetailedForProducts;
// Specify that the resulting table should be joined with the header table.
// Do not specify this option if calculated fields are not within table cells.
options.MergeMode = MergeMode.JoinTables;
// Provide a procedure for further processing.
richServerDetail.CalculateDocumentVariable += richServerDetail_CalculateDocumentVariable;
// Create a merged document using the Product template. The document will contain DOCVARIABLE fields with OrderID arguments.
// The CalculateDocumentVariable event for the richServerDetail fires.
productRichEdit.MailMerge(options, richServerDetail);
richServerDetail.CalculateDocumentVariable -= richServerDetail_CalculateDocumentVariable;
// Return the document to insert.
e.Value = richServerDetail;
// This setting is required for inserting e.Value into the source document. Otherwise it will be ignored.
e.Handled = true;
}
}
