Integrating Visio with SharePoint - Visio Services Quick Guide - page 85

Figure 4-64. WCF consumer project structure
Open the VisioDataService.cs file from the VisioDataService project and copy the
code in Listing 4-6 into the file. Make sure that you have the correct namespaces as
per your project settings.
Listing 4-6. Visio Custom Data Provider Service Class Code
using System;
using System.Data;
using System.Threading;
using System.Xml;
using System.Web;
using Microsoft.Office.Visio.Server;
using VisioDataService.WcfDataService;
namespace Altsis