ImageGear for .NET
UserData Property (ImGearARTFilledRectangle)
Example 




Gets or sets the user data specified for the mark.
Syntax
'Declaration
 
Public Overrides Property UserData As Object
'Usage
 
Dim instance As ImGearARTFilledRectangle
Dim value As Object
 
instance.UserData = value
 
value = instance.UserData
public override object UserData {get; set;}
public: __property Object* get_UserData() override;
public: __property void set_UserData( 
   Object* value
) override;
public:
property Object^ UserData {
   Object^ get() override;
   void set (    Object^ value) override;
}

Property Value

Object value.
Remarks
You can load/save the data associated with this property from/to XML.

In order to do that you need to declare serializable class, create and initialize an object of that class, and attach it to ImGearARTMark.UserData.

Example
[Serializable]
public class UserData
{
    private string _textData;
    private int _integerData;

    public UserData(string textData, int integerData)
    {
        this.TextData = textData;
        this.IntegerData = integerData;
    }

    public string TextData
    {
        get
        {
            return _textData;
        }

        private set
        {
            _textData = value;
        }
    }

    public int IntegerData
    {
        get
        {
            return _integerData;
        }

        private set
        {
            _integerData = value;
        }
    }
}
<SerializableAttribute()> _
Public Class UserData
    Private _textData As String
    Private _integerData As String

    Public Sub New(ByVal textData As String, ByVal integerData As Integer)
        Me.TextData = textData
        Me.IntegerData = integerData
    End Sub
    Public Property TextData() As String
        Get
            Return _textData
        End Get
        Set(ByVal Value As String)
            _textData = Value
        End Set
    End Property
    Public Property IntegerData() As Integer
        Get
            Return _integerData
        End Get
        Set(ByVal Value As Integer)
            _integerData = Value
        End Set
    End Property
End Class
// Create user data.
UserData userData = new UserData("Text data to export to XML.", 99);

// Get annotation to assign user data to.
ImGearARTMark mark = igARTPage.MarkGet(markId);

// Set corresponding property of the mark.
mark.UserData = userData;

// Save page with annotation and user data to a stream.
ImGearART.SavePage(igARTPage, stream, 0, ImGearSavingModes.OVERWRITE, ImGearARTSaveType.XML);

stream.Seek(0, SeekOrigin.Begin);

// Create new ART Page from the stream and get the annotation with the user data.
ImGearARTPage newArtPage = ImGearART.LoadPage(stream, 0);
ImGearARTMark newMark = newArtPage.MarkGet(markId);
UserData newUserData = (UserData)newMark.UserData;

System.Diagnostics.Debug.Assert(newUserData.IntegerData == userData.IntegerData);
System.Diagnostics.Debug.Assert(newUserData.TextData == userData.TextData);
' Create user data.
Dim userData As UserData = New UserData("Textual data to export to XML", 99)

' Get annotation to assign user data to.
Dim mark As ImGearARTMark = igARTPage.MarkGet(markId)

' Set corresponding property of the mark.
mark.UserData = userData

' Save page with annotation and user data to a stream.
ImGearART.SavePage(igARTPage, stream, 0, ImGearSavingModes.OVERWRITE, ImGearARTSaveType.XML)

stream.Seek(0, SeekOrigin.Begin)

' Create new ART Page from the stream and get the annotation with the user data.
Dim newArtPage As ImGearARTPage = ImGearART.LoadPage(stream, 0)
Dim newMark As ImGearARTMark = newArtPage.MarkGet(markId)
Dim newUserData As UserData = CType(newMark.UserData, UserData)

System.Diagnostics.Debug.Assert(newUserData.IntegerData = userData.IntegerData)
System.Diagnostics.Debug.Assert(newUserData.TextData = userData.TextData)
See Also

Reference

ImGearARTFilledRectangle Class
ImGearARTFilledRectangle Members

 

 


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