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.NET Framework クラスライブラリリファレンス

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PropertyTabScope 列挙体

[プロパティ] ウィンドウにあるタブのスコープの永続性を示す識別子を定義します。

名前空間: System.ComponentModel
アセンブリ: System (system.dll 内)
構文

Visual Basic (宣言)

Public Enumeration PropertyTabScope

Visual Basic (使用法)

Dim instance As PropertyTabScope

public enum PropertyTabScope

C++

public enum class PropertyTabScope

public enum PropertyTabScope

JScript

public enum PropertyTabScope

メンバ

	メンバ名	説明
	Component	このタブは、現在のコンポーネントに固有のタブです。このタブは、現在のコンポーネントに関してだけ [プロパティ] ウィンドウに追加され、そのコンポーネントが選択されなくなった時点で削除されます。
	Document	このタブは、現在のドキュメントに固有のタブです。このタブは [プロパティ] ウィンドウに追加され、現在選択されているドキュメントが変更された時点で削除されます。
	Global	このタブは [プロパティ] ウィンドウに追加され、親コンポーネントだけが明示的に削除できます。
	Static	このタブは [プロパティ] ウィンドウに追加され、削除はできません。

解説

PropertyTabScope は、デザインドキュメントのコンポーネントが関連付けられた PropertyTabAttribute を持つ場合に、[プロパティ] ウィンドウに表示されるタブのスコープの永続性を示します。

使用例

PropertyTabScope を使用して、プロパティタブのスコープを指定する方法を次のコード例に示します。

Visual Basic

Imports System
Imports System.ComponentModel
Imports System.ComponentModel.Design
Imports System.Drawing
Imports System.IO
Imports System.Reflection
Imports System.Runtime.Serialization
Imports System.Runtime.Serialization.Formatters.Binary
Imports System.Windows.Forms
Imports System.Windows.Forms.Design

' This component adds a TypeCategoryTab to the property browser
' that is available for any components in the current design mode document.
<PropertyTabAttribute(GetType(TypeCategoryTab), PropertyTabScope.Document)>
  _
Public Class TypeCategoryTabComponent
   Inherits System.ComponentModel.Component
   
   Public Sub New()
    End Sub
End Class

' A TypeCategoryTab property tab lists properties by the 
' category of the type of each property.
<System.Security.Permissions.PermissionSetAttribute(System.Security.Permissions.SecurityAction.Demand,
 Name:="FullTrust")> _
Public Class TypeCategoryTab
    Inherits PropertyTab

    ' This string contains a Base-64 encoded and serialized example
 property tab image.
    <BrowsableAttribute(True)> _
    Private img As String
 = "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"

    Public Sub New()
    End Sub

    ' Returns the properties of the specified component extended with
 
    ' a CategoryAttribute reflecting the name of the type of the property.
    Public Overloads Overrides
 Function GetProperties(ByVal component As
 Object, ByVal attributes() As System.Attribute) As System.ComponentModel.PropertyDescriptorCollection
        Dim props As PropertyDescriptorCollection
        If attributes Is Nothing
 Then
            props = TypeDescriptor.GetProperties(component)
        Else
            props = TypeDescriptor.GetProperties(component, attributes)
        End If
        Dim propArray(props.Count - 1) As PropertyDescriptor
        Dim i As Integer
        For i = 0 To props.Count - 1
            ' Create a new PropertyDescriptor from the old one, with
 
            ' a CategoryAttribute matching the name of the type.
            propArray(i) = TypeDescriptor.CreateProperty(props(i).ComponentType,
 props(i), New CategoryAttribute(props(i).PropertyType.Name))
        Next i
        Return New PropertyDescriptorCollection(propArray)
    End Function

    Public Overloads Overrides
 Function GetProperties(ByVal component As
 Object) As System.ComponentModel.PropertyDescriptorCollection
        Return Me.GetProperties(component,
 Nothing)
    End Function

    ' Provides the name for the property tab.
    Public Overrides ReadOnly
 Property TabName() As String
        Get
            Return "Properties by Type"
        End Get
    End Property

    ' Provides an image for the property tab.
    Public Overrides ReadOnly
 Property Bitmap() As System.Drawing.Bitmap
        Get
            Dim bmp As New
 Bitmap(DeserializeFromBase64Text(img))
            Return bmp
        End Get
    End Property

    ' This method can be used to retrieve an Image from a block of Base64-encoded
 text.
    Private Function DeserializeFromBase64Text(ByVal
 [text] As String) As Image
        Dim img As Image = Nothing
        Dim memBytes As Byte()
 = Convert.FromBase64String([text])
        Dim formatter As New
 BinaryFormatter()
        Dim stream As New
 MemoryStream(memBytes)
        img = CType(formatter.Deserialize(stream), Image)
        stream.Close()
        Return img
    End Function
End Class

using System;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Drawing;
using System.IO;
using System.Reflection;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;
using System.Windows.Forms;
using System.Windows.Forms.Design;

namespace TypeCategoryTabExample
{    
    // This component adds a TypeCategoryTab to the propery browser
 
    // that is available for any components in the current design mode
 document.
    [PropertyTabAttribute(typeof(TypeCategoryTab), PropertyTabScope.Document)]
    public class TypeCategoryTabComponent :
 System.ComponentModel.Component
    {           
        public TypeCategoryTabComponent()
        {
        }
    }

    // A TypeCategoryTab property tab lists properties by the 
    // category of the type of each property.
    [System.Security.Permissions.PermissionSet(System.Security.Permissions.SecurityAction.Demand,
 Name = "FullTrust")] 
    public class TypeCategoryTab : PropertyTab
    {
        [BrowsableAttribute(true)]
        // This string contains a Base-64 encoded and serialized example
 property tab image.
        private string img = "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";

        public TypeCategoryTab()
        {            
        }

        // Returns the properties of the specified component extended
 with 
        // a CategoryAttribute reflecting the name of the type of the
 property.
        public override System.ComponentModel.PropertyDescriptorCollection
 GetProperties(object component, System.Attribute[] attributes)
        {
            PropertyDescriptorCollection props;
            if( attributes == null )
                props = TypeDescriptor.GetProperties(component);    
            else
                props = TypeDescriptor.GetProperties(component, attributes);    
            
            PropertyDescriptor[] propArray = new PropertyDescriptor[props.Count];
            
            for(int i=0; i<props.Count;
 i++)           
            {                
                // Create a new PropertyDescriptor from the old one,
 with 
                // a CategoryAttribute matching the name of the type.
                propArray[i] = TypeDescriptor.CreateProperty(props[i].ComponentType,
 props[i], new CategoryAttribute(props[i].PropertyType.Name));
            }
            return new PropertyDescriptorCollection(
 propArray );
        }

        public override System.ComponentModel.PropertyDescriptorCollection
 GetProperties(object component)
        {                     
            return this.GetProperties(component,
 null);
        }

        // Provides the name for the property tab.
        public override string TabName
        {
            get
            {
                return "Properties by Type";
            }
        }

        // Provides an image for the property tab.
        public override System.Drawing.Bitmap Bitmap
        {
            get
            {
                Bitmap bmp = new Bitmap(DeserializeFromBase64Text(img));
                return bmp;
            }
        }

        // This method can be used to retrieve an Image from a block
 of Base64-encoded text.
        private Image DeserializeFromBase64Text(string
 text)
        {
            Image img = null;
            byte[] memBytes = Convert.FromBase64String(text);
            IFormatter formatter = new BinaryFormatter();
            MemoryStream stream = new MemoryStream(memBytes);
            img = (Image)formatter.Deserialize(stream);
            stream.Close();
            return img;
        }
    }
}

C++

#using <System.Windows.Forms.dll>
#using <System.Drawing.dll>
#using <System.dll>

using namespace System;
using namespace System::ComponentModel;
using namespace System::ComponentModel::Design;
using namespace System::Drawing;
using namespace System::IO;
using namespace System::Reflection;
using namespace System::Runtime::Serialization;
using namespace System::Runtime::Serialization::Formatters::Binary;
using namespace System::Windows::Forms;
using namespace System::Windows::Forms::Design;
using namespace System::Security::Permissions;

namespace TypeCategoryTabExample
{
   ref class TypeCategoryTab;

   // forward declaration.
   // This component adds a TypeCategoryTab to the propery browser
   // that is available for any components in the current design mode
 document.

   [PropertyTabAttribute(TypeCategoryTabExample::TypeCategoryTab::typeid,PropertyTabScope::Document)]
   public ref class TypeCategoryTabComponent:
 public System::ComponentModel::Component
   {
   public:
      TypeCategoryTabComponent(){}
   };

   // A TypeCategoryTab property tab lists properties by the
   // category of the type of each property.
   public ref class TypeCategoryTab: public
 PropertyTab
   {
   private:

      // This String^ contains a Base-64 encoded and serialized example
 property tab image.

      [BrowsableAttribute(true)]
      String^ img;

   public:
      TypeCategoryTab()
      {
         img = "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";
      }

      // Returns the properties of the specified component extended
 with
      // a CategoryAttribute reflecting the name of the type of the
 property.
      [ReflectionPermission(SecurityAction::Demand, Flags=ReflectionPermissionFlag::MemberAccess)]
      virtual System::ComponentModel::PropertyDescriptorCollection^ GetProperties(
 Object^ component, array<System::Attribute^>^attributes ) override
      {
         PropertyDescriptorCollection^ props;
         if ( attributes == nullptr )
                  props = TypeDescriptor::GetProperties( component );
         else
                  props = TypeDescriptor::GetProperties( component, attributes );

         array<PropertyDescriptor^>^propArray = gcnew array<PropertyDescriptor^>(props->Count);
         for ( int i = 0; i < props->Count;
 i++ )
         {
            // Create a new PropertyDescriptor from the old one, with
            // a CategoryAttribute matching the name of the type.
            array<Attribute^>^temp0 = {gcnew CategoryAttribute( props[ i ]->PropertyType->Name
 )};
            propArray[ i ] = TypeDescriptor::CreateProperty( props[ i ]->ComponentType,
 props[ i ], temp0 );

         }
         return gcnew PropertyDescriptorCollection( propArray
 );
      }

      virtual System::ComponentModel::PropertyDescriptorCollection^ GetProperties(
 Object^ component ) override
      {
         return this->GetProperties( component,
 nullptr );
      }

      property String^ TabName 
      {
         // Provides the name for the property tab.
         virtual String^ get() override
         {
            return "Properties by Type";
         }
      }

      property System::Drawing::Bitmap^ Bitmap 
      {
         // Provides an image for the property tab.
         virtual System::Drawing::Bitmap^ get() override
         {
            System::Drawing::Bitmap^ bmp = gcnew System::Drawing::Bitmap( DeserializeFromBase64Text(
 img ) );
            return bmp;
         }
      }

   private:

      // This method can be used to retrieve an Image from a block of
 Base64-encoded text.
      Image^ DeserializeFromBase64Text( String^ text )
      {
         Image^ img = nullptr;
         array<Byte>^memBytes = Convert::FromBase64String( text );
         IFormatter^ formatter = gcnew BinaryFormatter;
         MemoryStream^ stream = gcnew MemoryStream( memBytes );
         img = dynamic_cast<Image^>(formatter->Deserialize( stream ));
         stream->Close();
         return img;
      }
   };
}

プラットフォーム

バージョン情報

.NET Framework
サポート対象 : 2.0、1.1、1.0

参照

関連項目
System.ComponentModel 名前空間
PropertyTabAttribute クラス

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PropertyTabScope 列挙体とは？わかりやすく解説