Simplest Code for adding Extended Attribute to a Project

Aspose.Tasks Product Family
1

Hi,


Can anyone please guide how to create a simple Extended Attribute to a Project using this API? Any recommendations?
2

Hi Robert,


Thank you for writing to Aspose Support team.

Aspose.Tasks lets you create Extended attributes in a project and assign it to a Task or Resource. Following is an example of how to create an Extended Attribute definition, create an Extended attribute from it and add it to a task. Please try it at your end and let us know if you need any further information in this regard.

Sample Code:

Project proj = new Project(“Blank2010.mpp”);

ExtendedAttributeDefinition myNumber1 = null;

if (proj.ExtendedAttributes.GetById(Convert.ToInt32(ExtendedAttributeTask.Number1.ToString(“D”))) == null)
{
myNumber1 = new ExtendedAttributeDefinition();
myNumber1.Alias = “MyValue”;
myNumber1.CfType = CustomFieldType.Number;
myNumber1.FieldId = ExtendedAttributeTask.Number1.ToString(“D”);
proj.ExtendedAttributes.Add(myNumber1);
}
else
myNumber1 = proj.ExtendedAttributes.GetById(Convert.ToInt32(ExtendedAttributeTask.Number1.ToString(“D”)));

ExtendedAttribute Number1Task = myNumber1.CreateExtendedAttribute();
Number1Task.Value = “20.55”;

Aspose.Tasks.Task tsk = proj.RootTask.Children.Add(“Task 1”);

tsk.ExtendedAttributes.Add(Number1Task);

proj.Save(“Task-ExtAttr.mpp”, SaveFileFormat.MPP);
3

Hi,


Thanks.

How can I generate an extended attribute with Lookup value? I don’t see any such example in documentation.
4

Hi Robert,


For an extended attribute of Lookup type, you need to define OutlineCodes that will be used to generate an extended attribute of this type. Please have a look at it for your reference and let us know your feedback.

String path = “\”;
Project project = new Project(@“Blank2010.mpp”);
OutlineCodeDefinition textOutline = new OutlineCodeDefinition();
project.OutlineCodes.Add(textOutline);

// add a mask for text field
OutlineMask mask = new OutlineMask();
mask.Type = MaskType.Characters;
textOutline.Masks.Add(mask);

OutlineValue textValue = new OutlineValue();

textValue.Value = “Text value 1”;
textValue.ValueId = 1;
textValue.Type = OutlineValueType.Text;
textValue.Description = “Text value descr 1”;
textValue.FieldGuid = Guid.NewGuid().ToString().ToUpper();
textOutline.Values.Add(textValue);

OutlineValue textValue2 = new OutlineValue();

textValue2.Value = “Text value 2”;
textValue2.ValueId = 2;
textValue2.Type = OutlineValueType.Text;
textValue2.Description = “Text value descr 2”;
textValue2.FieldGuid = Guid.NewGuid().ToString().ToUpper();
textOutline.Values.Add(textValue2);

// Add new text27 extended attribute
ExtendedAttributeDefinition taskTextAttr = new ExtendedAttributeDefinition();
taskTextAttr.ElementType = ElementType.Null;
taskTextAttr.Alias = “New text27 attribute”;
taskTextAttr.FieldId = ExtendedAttributeTask.Text27.ToString(“D”);
// add a reference to lookup table
taskTextAttr.LookupUid = textOutline.Guid;

taskTextAttr.CfType = CustomFieldType.Text;
project.ExtendedAttributes.Add(taskTextAttr);

// Add new task and assign attribute value
Aspose.Tasks.Task task = project.RootTask.Children.Add(“New task”);
task.Set(Tsk.Start, new DateTime(2016, 7, 4, 8, 0, 0));
task.Set(Tsk.Duration, project.GetDuration(8, TimeUnitType.Hour));

ExtendedAttribute taskAttrText = taskTextAttr.CreateExtendedAttribute(textValue);
task.ExtendedAttributes.Add(taskAttrText);

project.Save(path + “SavedProject.mpp”, SaveFileFormat.MPP);