Leadtools.Annotations Namespace > AnnObject Class : UserData Property |
public virtual object UserData {get; set;}
'Declaration Public Overridable Property UserData As Object
'Usage Dim instance As AnnObject Dim value As Object instance.UserData = value value = instance.UserData
public virtual object UserData {get; set;}
get_UserData();
set_UserData(value);
' This is the main method in your application to create a container Private Function AnnObject_UserData() As AnnContainer ' create the container and subclass to its Objects.ItemAdded event Dim container As AnnContainer = New AnnContainer() AddHandler container.Objects.ItemAdded, AddressOf Objects_ItemAdded ' Add an item to the container Dim ellipse As AnnEllipseObject = New AnnEllipseObject() ellipse.Bounds = New AnnRectangle(100, 100, 100, 100, AnnUnit.Pixel) ellipse.Pen = New AnnPen(Color.Green, New AnnLength(2, AnnUnit.Pixel)) ellipse.Brush = New AnnSolidBrush(Color.Yellow) ellipse.Name = "Ellipse" container.Objects.Add(ellipse) Return container End Function ' A private class in your application to store the user name as well as the date/time an annotation object was created. Public Class MyUserData Public Sub New(ByVal userName_Renamed As String) _userName = userName_Renamed _dateCreated = DateTime.Now End Sub Private _userName As String Public Property UserName() As String Get Return _userName End Get Set(ByVal value As String) _userName = Value End Set End Property Private _dateCreated As DateTime Public Property DateCreated() As DateTime Get Return _dateCreated End Get Set(ByVal value As DateTime) _dateCreated = Value End Set End Property End Class Private Sub Objects_ItemAdded(ByVal sender As Object, ByVal e As RasterCollectionEventArgs(Of AnnObject)) ' get the object Dim obj As AnnObject = CType(IIf(TypeOf e.Item Is AnnObject, e.Item, Nothing), AnnObject) ' store the current user name and date/time this object was created in the object Dim userData As MyUserData = New MyUserData("MyUserName") obj.UserData = userData End Sub
// This is the main method in your application to create a container private AnnContainer AnnObject_UserData() { // create the container and subclass to its Objects.ItemAdded event AnnContainer container = new AnnContainer(); container.Objects.ItemAdded += new EventHandler<RasterCollectionEventArgs<AnnObject>>(Objects_ItemAdded); // Add an item to the container AnnEllipseObject ellipse = new AnnEllipseObject(); ellipse.Bounds = new AnnRectangle(100, 100, 100, 100, AnnUnit.Pixel); ellipse.Pen = new AnnPen(Color.Green, new AnnLength(2, AnnUnit.Pixel)); ellipse.Brush = new AnnSolidBrush(Color.Yellow); ellipse.Name = "Ellipse"; container.Objects.Add(ellipse); return container; } // A private class in your application to store the user name as well as the date/time an annotation object was created. public class MyUserData { public MyUserData(string userName) { _userName = userName; _dateCreated = DateTime.Now; } private string _userName; public string UserName { get { return _userName; } set { _userName = value; } } private DateTime _dateCreated; public DateTime DateCreated { get { return _dateCreated; } set { _dateCreated = value; } } } void Objects_ItemAdded(object sender, RasterCollectionEventArgs<AnnObject> e) { // get the object AnnObject obj = e.Item as AnnObject; // store the current user name and date/time this object was created in the object MyUserData userData = new MyUserData("MyUserName"); obj.UserData = userData; }
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2