Gets a unique user state.
(in System.dll)
Visual Basic (Declaration)
Public ReadOnly Property UserState As Object
Dim instance As ProgressChangedEventArgs
Dim value As Object
value = instance.UserState
public Object UserState { get; }
public:
property Object^ UserState {
Object^ get ();
}
public function get UserState () : Object
The following code example demonstrates the use of this member. In the example, an event handler reports on the occurrence of the PictureBox..::.LoadProgressChanged event. This report helps you to learn when the event occurs and can assist you in debugging. To report on multiple events or on events that occur frequently, consider replacing MessageBox..::.Show with Console..::.WriteLine or appending the message to a multiline TextBox.
To run the example code, paste it into a project that contains an instance of type PictureBox named PictureBox1. Then ensure that the event handler is associated with the PictureBox..::.LoadProgressChanged event.
Private Sub PictureBox1_LoadProgressChanged(sender as Object, e as ProgressChangedEventArgs) _
Handles PictureBox1.LoadProgressChanged
Dim messageBoxVB as New System.Text.StringBuilder()
messageBoxVB.AppendFormat("{0} = {1}", "ProgressPercentage", e.ProgressPercentage)
messageBoxVB.AppendLine()
messageBoxVB.AppendFormat("{0} = {1}", "UserState", e.UserState)
messageBoxVB.AppendLine()
MessageBox.Show(messageBoxVB.ToString(),"LoadProgressChanged Event")
End Sub
private void PictureBox1_LoadProgressChanged(Object sender, ProgressChangedEventArgs e) {
System.Text.StringBuilder messageBoxCS = new System.Text.StringBuilder();
messageBoxCS.AppendFormat("{0} = {1}", "ProgressPercentage", e.ProgressPercentage );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "UserState", e.UserState );
messageBoxCS.AppendLine();
MessageBox.Show(messageBoxCS.ToString(), "LoadProgressChanged Event" );
}
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
.NET Framework
Supported in: 3.5, 3.0, 2.0
Reference
Other Resources