Item(String) Property

Visual Basic
C#
C++/CLI

'Declaration
 
Public Overloads Property Item( _
   ByVal name As String _
) As Processor

'Usage
 
Dim instance As Processors
Dim name As String
Dim value As Processor
 
instance.Item(name) = value
 
value = instance.Item(name)

public Processor Item( 
   string name
) {get; set;}

public:
property Processor^ Item {
   Processor^ get(String^ name);
   void set (String^ name, Processor^ value);
}

Parameters

name: The string name of the item to get or set.

Property Value

The Processor item with the specified name.

Exception	Description
System.ArgumentOutOfRangeException	The exception that is thrown when the value of an argument is outside the allowable range of values as defined by the invoked method.
System.NullReferenceException	The exception that is thrown when there is an attempt to dereference a null object reference.

This property provides the ability to access a specific item in the collection by using the following syntax: myCollection[index] The C# language uses the this keyword to define the indexers instead of implementing the Item property. Visual Basic implements Item as a default property, which provides the same indexing functionality.

Visual Basic
C#
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Imports Leadtools
Imports Leadtools.MediaFoundation
Imports LeadtoolsMediaFoundationExamples.Fixtures

Public _result As Boolean = False
Public _form As PlayCtrlForm = New PlayCtrlForm()
Public Sub IndexOfExample()
   ' reference the play control
   Dim playctrl As PlayCtrl = _form.PlayCtrl

   Try
      ' get the play controls available audio processors
      Dim allProcs As AudioProcessors = playctrl.AudioProcessors

      ' get the play controls selected audio processors
      Dim selProcs As AudioProcessors = playctrl.SelectedAudioProcessors

      ' get index of LEAD MF Volume Transform
           Dim nIndex As Integer = allProcs.IndexOf("{E2B7DC41-38C5-11D5-91F6-00104BDB8FF9}")

           ' get LEAD MF Volume Transform
           Dim AudProc As Processor = allProcs(nIndex)

      ' add the LEAD MF Volume Transform to the selected audio processors
      selProcs.Add(allProcs(nIndex))

      ' get the index of added audio processor
      Dim i As Integer = selProcs.IndexOf(allProcs(nIndex))

      ' set the result to what we expect
           _result = (selProcs(i) Is AudProc)
   Catch e1 As Exception
      _result = False
   End Try
End Sub

using Leadtools;
using Leadtools.MediaFoundation;
using LeadtoolsMediaFoundationExamples.Fixtures;

public bool _result = false;
public PlayCtrlForm _form = new PlayCtrlForm();
public void IndexOfExample()
{
   // reference the play control
   PlayCtrl playctrl = _form.PlayCtrl;

   try
   {
      // get the play controls available audio processors
      AudioProcessors allProcs = playctrl.AudioProcessors;

      // get the play controls selected audio processors
      AudioProcessors selProcs = playctrl.SelectedAudioProcessors;

      // get index of LEAD MF Volume Transform
      int nIndex = allProcs.IndexOf("{E2B7DC41-38C5-11D5-91F6-00104BDB8FF9}");

      // get LEAD MF Volume Transform
      Processor AudProc = allProcs[nIndex];

      // add the LEAD MF Volume Transform to the selected audio processors
      selProcs.Add(AudProc);

      // get the index of added audio processor
      int i = selProcs.IndexOf(AudProc);

      // set the result to what we expect
      _result = (selProcs[i] == AudProc);
   }            
   catch (Exception)
   {
      _result = false;
   }
}

Target Platforms

Reference

Processors Class
Processors Members
Overload List