Added the sample Group-mail-merge-with-data-table

Author: DharanyaSakthivel-SF4210

examples/mailmerge/Group-mail-merge-with-data-table/Employees.java

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+public class Employee 
+{
+	private String _firstName;
+	private String _lastName;
+	private String _address;
+	private String _city;
+	private String _region;
+	private String _country;
+	private String _title;
+	private String _photo;
+	public String getFirstName()throws Exception
+	{
+		return _firstName;
+	}
+	public String setFirstName(String value)throws Exception
+	{
+		_firstName=value;
+		return value;
+	}
+	public String getLastName()throws Exception
+	{
+		return _lastName;
+	}
+	public String setLastName(String value)throws Exception
+	{
+		_lastName=value;
+		return value;
+	}
+	public String getAddress()throws Exception
+	{
+		return _address;
+	}
+	public String setAddress(String value)throws Exception
+	{
+		_address=value;
+		return value;
+	}
+	public String getCity()throws Exception
+	{
+		return _city;
+	}
+	public String setCity(String value)throws Exception
+	{
+		_city=value;
+		return value;
+	}
+	public String getRegion()throws Exception
+	{
+		return _region;
+	}
+	public String setRegion(String value)throws Exception
+	{
+		_region=value;
+		return value;
+	}
+	public String getCountry()throws Exception{
+		return _country;
+	}
+	public String setCountry(String value)throws Exception
+	{
+		_country=value;
+		return value;
+	}
+	public String getTitle()throws Exception
+	{
+		return _title;
+	}
+	public String setTitle(String value)throws Exception
+	{
+		_title=value;
+		return value;
+	}
+	public String getPhoto()throws Exception
+	{
+		return _photo;
+	}
+	public String setPhoto(String image)throws Exception
+	{
+		_photo=image;
+		return image;
+	}
+	public Employee(String firstName,String lastName,String title,String address,String city,String region,String country,String photoFilePath)throws Exception
+	{
+		setFirstName(firstName);
+		setLastName(lastName);
+		setTitle(title);
+		setAddress(address);
+		setCity(city);
+		setRegion(region);
+		setCountry(country);
+		setPhoto((photoFilePath));
+	}
+}

examples/mailmerge/Group-mail-merge-with-data-table/Program.java

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+import java.io.ByteArrayInputStream;
+import com.syncfusion.docio.MailMergeDataTable;
+import com.syncfusion.docio.MergeImageFieldEventArgs;
+import com.syncfusion.docio.MergeImageFieldEventHandler;
+import com.syncfusion.docio.WordDocument;
+import com.syncfusion.javahelper.system.collections.generic.ListSupport;
+import com.syncfusion.javahelper.system.io.FileAccess;
+import com.syncfusion.javahelper.system.io.FileMode;
+import com.syncfusion.javahelper.system.io.FileStreamSupport;
+
+public class Program {
+    public static void main(String[] args) throws Exception 
+	{
+		//Loads an existing Word document into DocIO instance.
+        WordDocument document = new WordDocument("Template.docx");
+        //Gets the employee details as IEnumerable collection.
+        ListSupport<Employee> employeeList = getEmployees();
+        //Uses the mail merge events handler for image fields.
+        document.getMailMerge().MergeImageField.add("mergeField_EmployeeImage", new MergeImageFieldEventHandler() {
+        ListSupport<MergeImageFieldEventHandler> delegateList = new ListSupport<MergeImageFieldEventHandler>(
+        MergeImageFieldEventHandler.class);
+        //Represents event handling for MergeFieldEventHandlerCollection.
+        public void invoke(Object sender, MergeImageFieldEventArgs args) throws Exception 
+        {
+        	mergeField_EmployeeImage(sender, args);
+        }
+        //Represents the method that handles MergeField event.
+        public void dynamicInvoke(Object... args) throws Exception 
+        {
+        	mergeField_EmployeeImage((Object) args[0], (MergeImageFieldEventArgs) args[1]);
+        }
+        //Represents the method that handles MergeField event to add collection item.
+        public void add(MergeImageFieldEventHandler delegate) throws Exception 
+        {
+        	if (delegate != null)
+        		delegateList.add(delegate);
+        }
+        //Represents the method that handles MergeField event to remove collection item.
+        public void remove(MergeImageFieldEventHandler delegate) throws Exception 
+        {
+        	if (delegate != null)
+        		delegateList.remove(delegate);
+        }
+        });
+        //Creates an instance of MailMergeDataTable by specifying MailMerge group name and IEnumerable collection.
+        MailMergeDataTable dataSource = new MailMergeDataTable("Employees",employeeList);
+        //Executes the mail merge for group.
+        document.getMailMerge().executeGroup(dataSource);
+        //Saves and closes the WordDocument instance.
+        document.save("Sample.docx");
+        document.close();
+    }
+    public static ListSupport<Employee> getEmployees()throws Exception
+    {
+    	ListSupport<Employee> employees = new ListSupport<Employee>(Employee.class);
+    	employees.add(new Employee("Nancy","Smith","Sales Representative","505 - 20th Ave. E. Apt. 2A,","Seattle","WA","USA","Nancy.png"));
+    	employees.add(new Employee("Andrew","Fuller","Vice President, Sales","908 W. Capital Way","Tacoma","WA","USA","Andrew.png"));
+    	return employees;
+    }
+
+    public static void mergeField_EmployeeImage(Object sender, MergeImageFieldEventArgs args) throws Exception 
+    {
+    	//Binds image from file system during mail merge.
+    	if ((args.getFieldName()).equals("Photo")) 
+    	{
+    		String ProductFileName = args.getFieldValue().toString();
+    		//Gets the image from file system.
+    		FileStreamSupport imageStream = new FileStreamSupport(ProductFileName, FileMode.Open, FileAccess.Read);
+    		ByteArrayInputStream stream = new ByteArrayInputStream(imageStream.toArray());
+    		args.setImageStream(stream);
+    	}
+    }	
+}