PropertyTabとは? わかりやすく解説

PropertyTab クラス

プロパティ タブ基本クラス提供します

名前空間: System.Windows.Forms.Design
アセンブリ: System.Windows.Forms (system.windows.forms.dll 内)
構文構文

Public MustInherit Class
 PropertyTab
    Implements IExtenderProvider
public abstract class PropertyTab : IExtenderProvider
public ref class PropertyTab abstract : IExtenderProvider
public abstract class PropertyTab implements
 IExtenderProvider
public abstract class PropertyTab implements
 IExtenderProvider
解説解説
使用例使用例

コンポーネントプロパティの一覧を型の名前順に並べ替え表示する PropertyTabコード例次に示します

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;
        }
    }
}
#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;
      }
   };
}
.NET Framework のセキュリティ.NET Frameworkセキュリティ
継承階層継承階層
System.Object
  System.Windows.Forms.Design.PropertyTab
     System.Windows.Forms.Design.EventsTab
     System.Windows.Forms.PropertyGridInternal.PropertiesTab
スレッド セーフスレッド セーフ
この型の public static (Visual Basic では Shared) メンバはすべて、スレッド セーフです。インスタンス メンバ場合は、スレッド セーフであるとは限りません。
プラットフォームプラットフォーム
バージョン情報バージョン情報
参照参照
関連項目
PropertyTab メンバ
System.Windows.Forms.Design 名前空間

PropertyTab コンストラクタ


PropertyTab プロパティ


パブリック プロパティパブリック プロパティ

参照参照

関連項目

PropertyTab クラス
System.Windows.Forms.Design 名前空間

PropertyTab メソッド


パブリック メソッドパブリック メソッド

プロテクト メソッドプロテクト メソッド
参照参照

関連項目

PropertyTab クラス
System.Windows.Forms.Design 名前空間

PropertyTab メンバ

プロパティ タブ基本クラス提供します

PropertyTab データ型公開されるメンバを以下の表に示します


プロテクト コンストラクタプロテクト コンストラクタ
  名前 説明
プロテクト メソッド PropertyTab PropertyTab クラス新しインスタンス初期化します。
パブリック プロパティパブリック プロパティ
パブリック メソッドパブリック メソッド
プロテクト メソッドプロテクト メソッド
参照参照

関連項目

PropertyTab クラス
System.Windows.Forms.Design 名前空間



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