Create a task assignment

Hi again,
Today I'm going to explain how to create a resource asignment and a cost assignment to a task using PSI.

Variables
ProjWS --> project web service initialized
proyectoid --> GUID of the project


1. First of all we need to get the ProjectDataSet of our project.

ProjectDataSet dsNew = projWS.ReadProject(proyectoid, Project.DataStoreEnum.WorkingStore);

2. Create a new Assignment row in the project

Project.ProjectDataSet.AssignmentRow ResRow = dsNew.Assignment.NewAssignmentRow();

3. Make the assignment between the user and the task

ResRow.PROJ_UID = projectUid; //GUID of the project
ResRow.ASSN_UID = Guid.NewGuid();
ResRow.RES_UID = resUid; // GUID of the resource
ResRow.RES_TYPE = AssignmentType; //Type of assignment
ResRow.TASK_UID = taskUid; //GUID of the task

4. Add the assignment cost if is a cost resource
if ( AssignmentType= 25) {
ResRow.ASSN_COST = ResourceCost;
}

5. Add the new Assignment row to the ProjectDataSet and add it to the project

dsNew.Assignment.AddAssignmentRow(ResRow);
Guid jobGuid = Guid.NewGuid();
projWS.QueueAddToProject(jobGuid, sessionGuid, dsNew, false);