ExtendedAttributeDefinitionCollection

ExtendedAttributeDefinitionCollection class

Represents a collection of ExtendedAttributeDefinition objects.

public class ExtendedAttributeDefinitionCollection : IList<ExtendedAttributeDefinition>

Properties

Name	Description
Count { get; }	Gets the number of elements contained in this collection.
IsReadOnly { get; }	Gets a value indicating whether this collection is read-only.
Item { get; set; }	Returns or sets the element at the specified index.
ParentProject { get; }	Gets a parent project for the ExtendedAttributeDefinitionCollection instance. returns a parent project for this collection.

Methods

Name	Description
Add(ExtendedAttributeDefinition)	Adds the specified item to this collection.
Clear()	Removes all items from this collection.
Contains(ExtendedAttributeDefinition)	Returns true if the specified item is found in this collection; otherwise, false.
CopyTo(ExtendedAttributeDefinition[], int)	Copies the elements of this collection to the specified array, starting at the specified array index.
GetById(int)	Returns an extended attribute definition by id
GetEnumerator()	Returns an enumerator for this collection.
IndexOf(ExtendedAttributeDefinition)	Determines the index of the specified item in this collection.
Insert(int, ExtendedAttributeDefinition)	Inserts the specified item at the specified index.
Remove(ExtendedAttributeDefinition)	Removes the first occurrence of a specific object from this collection.
RemoveAt(int)	Removes an item at the specified index.
ToList()	Converts this ExtendedAttributeDefinitionCollection object to a list containing instances of the ExtendedAttributeDefinition class.

Examples

Shows how to use extended attribute definition collections.

var project = new Project(DataDir + "ReadTaskExtendedAttributes.mpp");

if (!project.ExtendedAttributes.IsReadOnly)
{
    if (project.ExtendedAttributes.Count > 0)
    {
        // clear extended attribute definitions
        project.ExtendedAttributes.Clear();
    }
}

// create extended attribute definition for a task
var taskDefinition = ExtendedAttributeDefinition.CreateTaskDefinition(CustomFieldType.Start, ExtendedAttributeTask.Start7, "Start 7");
project.ExtendedAttributes.Add(taskDefinition);

Console.WriteLine("Iterate over extended attributes of " + project.ExtendedAttributes.ParentProject.Get(Prj.Name) + " project: ");
foreach (var attribute in project.ExtendedAttributes)
{
    Console.WriteLine("Attribute Alias: " + attribute.Alias);
    Console.WriteLine("Attribute CfType: " + attribute.CfType);
    Console.WriteLine();
}

Console.WriteLine();

// work with extended attribute definitions...
var resourceDefinition = ExtendedAttributeDefinition.CreateResourceDefinition(CustomFieldType.Cost, ExtendedAttributeResource.Cost5, "My cost");

if (!project.ExtendedAttributes.Contains(resourceDefinition))
{
    project.ExtendedAttributes.Add(resourceDefinition);
}

// work with extended attribute definitions...
var resourceDefinition2 = ExtendedAttributeDefinition.CreateResourceDefinition(CustomFieldType.Number, ExtendedAttributeResource.Cost1, "My Cost 2");

if (project.ExtendedAttributes.IndexOf(resourceDefinition2) < 0)
{
    project.ExtendedAttributes.Insert(0, resourceDefinition2);
}

// work with extended attribute definitions...

// remove extended attribute by index
project.ExtendedAttributes.RemoveAt(0);

Console.WriteLine("Print project's extended attributes: ");
Console.WriteLine("Count of project's extended attribute definitions: " + project.ExtendedAttributes.Count);

// use collection index access
Console.WriteLine("Attribute 1 Alias: " + project.ExtendedAttributes[0].Alias);
Console.WriteLine("Attribute 1 CfType: " + project.ExtendedAttributes[0].CfType);
Console.WriteLine("Attribute 2 Alias: " + project.ExtendedAttributes[1].Alias);
Console.WriteLine("Attribute 2 CfType: " + project.ExtendedAttributes[1].CfType);

var otherProject = new Project();

// copy attributes to other project
var attributes = new ExtendedAttributeDefinition[project.ExtendedAttributes.Count];
project.ExtendedAttributes.CopyTo(attributes, 0);

foreach (var attribute in attributes)
{
    otherProject.ExtendedAttributes.Add(attribute);
}

Console.WriteLine();
Console.WriteLine("Iterate over other project's extended attributes: ");
foreach (var attribute in otherProject.ExtendedAttributes)
{
    Console.WriteLine("Attribute Alias: " + attribute.Alias);
    Console.WriteLine("Attribute CfType: " + attribute.CfType);
    Console.WriteLine();
}

// remove all extended attribute definitions
List<ExtendedAttributeDefinition> definitions = project.ExtendedAttributes.ToList();
foreach (var definition in definitions)
{
    project.ExtendedAttributes.Remove(definition);
}

See Also

• class ExtendedAttributeDefinition
• namespace Aspose.Tasks
• assembly Aspose.Tasks