Aspose.Tasks.Examples.CSharp.WorkingWithFormulas.WriteFormulasInExtendedAttributesToMPP.Run C# (CSharp) Method

        public static void Run()
        {
            try
            {
                var lic = new License();
                lic.SetLicense(@"E:\Aspose\License\Aspose.Tasks.lic");
				
                // ExStart:WriteFormulasInExtendedAttributesToMPP
                // Create project instance
                string dataDir = RunExamples.GetDataDir(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType.FullName);
                Project project = new Project(dataDir + "Project1.mpp");
                project.Set(Prj.NewTasksAreManual, false);

                // Create new custom field (Task Text1) with formula which will double task cost
                ExtendedAttributeDefinition attr = new ExtendedAttributeDefinition();                
                attr.FieldId = ExtendedAttributeTask.Text1.ToString("D");
                attr.Alias = "Double Costs";
                attr.Formula = "[Cost]*2";
                project.ExtendedAttributes.Add(attr);

                // Add a task
                Task task = project.RootTask.Children.Add("Task");

                // Set task cost            
                task.Set(Tsk.Cost, 100);

                // Save project
                project.Save(dataDir + "WriteFormulasInExtendedAttributesToMPP_out.mpp", SaveFileFormat.MPP);
                // ExEnd:WriteFormulasInExtendedAttributesToMPP
            }
            catch(Exception ex)
            {
                Console.WriteLine(ex.Message + "\nThis example will only work if you apply a valid Aspose License. You can purchase full license or get 30 day temporary license from http://www.aspose.com/purchase/default.aspx.");
            }            
        }
    }