ServiceContainer 클래스
정의
중요
일부 정보는 릴리스되기 전에 상당 부분 수정될 수 있는 시험판 제품과 관련이 있습니다. Microsoft는 여기에 제공된 정보에 대해 어떠한 명시적이거나 묵시적인 보증도 하지 않습니다.
IServiceContainer 인터페이스의 기본 구현을 제공합니다. 이 클래스는 상속될 수 없습니다.
public ref class ServiceContainer : IDisposable, IServiceProvider, System::ComponentModel::Design::IServiceContainer
public ref class ServiceContainer sealed : IServiceProvider, System::ComponentModel::Design::IServiceContainer
public ref class ServiceContainer : IDisposable, System::ComponentModel::Design::IServiceContainer
public class ServiceContainer : IDisposable, IServiceProvider, System.ComponentModel.Design.IServiceContainer
public sealed class ServiceContainer : IServiceProvider, System.ComponentModel.Design.IServiceContainer
public class ServiceContainer : IDisposable, System.ComponentModel.Design.IServiceContainer
type ServiceContainer = class
interface IServiceContainer
interface IServiceProvider
interface IDisposable
type ServiceContainer = class
interface IServiceContainer
interface IServiceProvider
Public Class ServiceContainer
Implements IDisposable, IServiceContainer, IServiceProvider
Public NotInheritable Class ServiceContainer
Implements IServiceContainer, IServiceProvider
Public Class ServiceContainer
Implements IDisposable, IServiceContainer
- 상속
-
ServiceContainer
- 구현
예제
다음 예제 프로그램은 연결된 ServiceContainer 개체 체인의 서비스 연결 및 결과 서비스 가용성을 보여 줍니다. 이 프로그램은 연결된 서비스 체인 내에서 서비스의 가용성을 볼 수 있는 사용자 인터페이스를 제공하고, 연결된 서비스 컨테이너뿐만 아니라 , GetService및 RemoveService 메서드를 사용합니다AddService.
#using <System.Windows.Forms.dll>
#using <System.dll>
#using <System.Drawing.dll>
using namespace System;
using namespace System::Drawing;
using namespace System::Collections;
using namespace System::ComponentModel;
using namespace System::ComponentModel::Design;
using namespace System::Windows::Forms;
using namespace System::Windows::Forms::Design;
ref class ServiceObjectControl;
// Example form provides UI for demonstrating service sharing behavior
// of a network of IServiceContainer/IServiceProvider controls.
public ref class ServiceForm: public System::Windows::Forms::Form
{
private:
// Root service container control for tree.
ServiceObjectControl^ root;
// Button for clearing any provided services and resetting tree states.
System::Windows::Forms::Button^ reset_button;
// Color list used to color code controls.
array<Color>^colorkeys;
// Strings used to reflect text service.
array<String^>^keystrings;
public:
ServiceForm()
{
InitializeComponent();
CreateServiceControlTree();
colorkeys = gcnew array<Color>(6);
colorkeys[ 0 ] = Color::Beige;
colorkeys[ 1 ] = Color::SeaShell;
colorkeys[ 2 ] = Color::LightGreen;
colorkeys[ 3 ] = Color::LightBlue;
colorkeys[ 4 ] = Color::Khaki;
colorkeys[ 5 ] = Color::CadetBlue;
array<String^>^stringstemp = {"No service use","Service not accessible","Service provided",
"Service obtained","Service accessible","No further access"};
keystrings = stringstemp;
}
private:
void CreateServiceControlTree();
void InitializeComponent();
internal:
void ResetServiceTree( Object^ sender, EventArgs^ e );
public:
void UpdateServiceCoverage();
protected:
virtual void OnPaint( System::Windows::Forms::PaintEventArgs^ e ) override;
};
// Example service type contains a text string, sufficient
// to demonstrate service sharing.
public ref class TextService
{
public:
String^ text;
TextService()
: text( String::Empty )
{}
TextService( String^ text )
{
this->text = text;
}
};
public enum class TextServiceState
{
ServiceNotObtained, ServiceObtained, ServiceProvided, ServiceNotFound
};
// Example Form for entering a string.
private ref class StringInputDialog: public System::Windows::Forms::Form
{
private:
System::Windows::Forms::Button^ ok_button;
System::Windows::Forms::Button^ cancel_button;
public:
System::Windows::Forms::TextBox^ inputTextBox;
StringInputDialog( String^ text )
{
InitializeComponent();
inputTextBox->Text = text;
}
private:
void InitializeComponent()
{
this->ok_button = gcnew System::Windows::Forms::Button;
this->cancel_button = gcnew System::Windows::Forms::Button;
this->inputTextBox = gcnew System::Windows::Forms::TextBox;
this->SuspendLayout();
this->ok_button->Anchor = static_cast<AnchorStyles>(System::Windows::Forms::AnchorStyles::Bottom |
System::Windows::Forms::AnchorStyles::Right);
this->ok_button->Location = System::Drawing::Point( 180, 43 );
this->ok_button->Name = "ok_button";
this->ok_button->TabIndex = 1;
this->ok_button->Text = "OK";
this->ok_button->DialogResult = System::Windows::Forms::DialogResult::OK;
this->cancel_button->Anchor = static_cast<AnchorStyles>(System::Windows::Forms::AnchorStyles::Bottom |
System::Windows::Forms::AnchorStyles::Right);
this->cancel_button->Location = System::Drawing::Point( 260, 43 );
this->cancel_button->Name = "cancel_button";
this->cancel_button->TabIndex = 2;
this->cancel_button->Text = "Cancel";
this->cancel_button->DialogResult = System::Windows::Forms::DialogResult::Cancel;
this->inputTextBox->Location = System::Drawing::Point( 6, 9 );
this->inputTextBox->Name = "inputTextBox";
this->inputTextBox->Size = System::Drawing::Size( 327, 20 );
this->inputTextBox->TabIndex = 0;
this->inputTextBox->Text = "";
this->inputTextBox->Anchor = static_cast<AnchorStyles>((System::Windows::Forms::AnchorStyles::Top |
System::Windows::Forms::AnchorStyles::Left) | System::Windows::Forms::AnchorStyles::Right);
this->ClientSize = System::Drawing::Size( 342, 73 );
array<System::Windows::Forms::Control^>^temp0 = {this->inputTextBox,this->cancel_button,this->ok_button};
this->Controls->AddRange( temp0 );
this->MinimumSize = System::Drawing::Size( 350, 100 );
this->Name = "StringInputDialog";
this->Text = "Text Service Provide String Dialog";
this->ResumeLayout( false );
}
};
// An example user control that uses ServiceContainer to add, remove,
// and access services through a linkable service container network.
public ref class ServiceObjectControl: public System::Windows::Forms::UserControl
{
public:
// This example user control implementation provides a wrapper for
// ServiceContainer, supporting a linked service container network.
ServiceContainer^ serviceContainer;
private:
// Parent form reference for main program function access.
ServiceForm^ parent;
public:
// String for label displayed on the control to indicate the
// control's current service-related configuration state.
String^ label;
private:
// The current state of the control reflecting whether it has
// obtained or provided a text service.
TextServiceState state_;
public:
property TextServiceState state
{
TextServiceState get()
{
return state_;
}
void set( TextServiceState value )
{
if ( (TextServiceState)value == TextServiceState::ServiceProvided )
this->BackColor = Color::LightGreen;
else
if ( (TextServiceState)value == TextServiceState::ServiceNotObtained )
this->BackColor = Color::White;
else
if ( (TextServiceState)value == TextServiceState::ServiceObtained )
this->BackColor = Color::LightBlue;
else
if ( (TextServiceState)value == TextServiceState::ServiceNotFound )
this->BackColor = Color::SeaShell;
state_ = value;
}
}
ServiceObjectControl( ServiceObjectControl^ serviceContainerParent, System::Drawing::Size size,
Point location, ServiceForm^ parent )
{
this->state_ = TextServiceState::ServiceNotObtained;
this->BackColor = Color::Beige;
this->label = String::Empty;
this->Size = size;
this->Location = location;
this->parent = parent;
if ( serviceContainerParent == nullptr )
serviceContainer = gcnew ServiceContainer;
else
serviceContainer = gcnew ServiceContainer( serviceContainerParent->serviceContainer );
}
protected:
// Paint method override draws the label string on the control.
virtual void OnPaint( System::Windows::Forms::PaintEventArgs^ e ) override
{
e->Graphics->DrawString( label, gcnew System::Drawing::Font( "Arial",8 ), gcnew SolidBrush( Color::Black ), 5, 5 );
}
// Process mouse-down behavior for click.
virtual void OnMouseDown( System::Windows::Forms::MouseEventArgs^ e ) override
{
if ( e->Button == ::MouseButtons::Left )
{
if ( state_ != TextServiceState::ServiceProvided )
{
// Attempt to update text from service, and set color
// state accordingly.
TextService^ ts = dynamic_cast<TextService^>(serviceContainer->GetService( TextService::typeid ));
if ( ts != nullptr )
{
this->label = ts->text;
state = TextServiceState::ServiceObtained;
}
else
{
this->label = "Service Not Found";
state = TextServiceState::ServiceNotFound;
}
}
}
if ( e->Button == ::MouseButtons::Right )
{
if ( state_ == TextServiceState::ServiceProvided )
{
// Remove service if the container provided it.
if ( serviceContainer->GetService( TextService::typeid ) != nullptr )
{
serviceContainer->RemoveService( TextService::typeid, true );
state = TextServiceState::ServiceNotObtained;
this->label = "Service Removed";
}
}
else
{
// Obtain string and provide text service.
StringInputDialog^ form = gcnew StringInputDialog( "Test String" );
form->StartPosition = FormStartPosition::CenterParent;
if ( form->ShowDialog() == DialogResult::OK )
{
if ( serviceContainer->GetService( TextService::typeid ) != nullptr )
serviceContainer->RemoveService( TextService::typeid, true );
parent->ResetServiceTree( this, gcnew EventArgs );
serviceContainer->AddService( TextService::typeid, gcnew TextService( form->inputTextBox->Text ), true );
state = TextServiceState::ServiceProvided;
this->label = String::Format( "Provided Text: {0}", form->inputTextBox->Text );
}
}
}
parent->UpdateServiceCoverage();
}
public:
// Method accesses the TextService to test the visibility of the service
// from the control, and sets the UI state accordingly.
void ReflectServiceVisibility()
{
if ( state_ == TextServiceState::ServiceObtained )
{
if ( serviceContainer->GetService( TextService::typeid ) == nullptr )
this->BackColor = Color::CadetBlue;
}
else
if ( state_ != TextServiceState::ServiceProvided )
{
if ( serviceContainer->GetService( TextService::typeid ) == nullptr )
{
this->BackColor = Color::White;
return;
}
// Service available.
if ( state_ == TextServiceState::ServiceNotFound )
this->BackColor = Color::Khaki;
else
if ( state_ == TextServiceState::ServiceNotObtained && !label->Equals( "Service Removed" ) )
this->BackColor = Color::Khaki;
}
}
};
void ServiceForm::CreateServiceControlTree()
{
// Create root service control.
ServiceObjectControl^ control1 = gcnew ServiceObjectControl( nullptr,System::Drawing::Size( 300, 40 ),Point(10,80),this );
root = control1;
// Create first tier - pass parent with service object control 1
ServiceObjectControl^ control2 = gcnew ServiceObjectControl( control1,System::Drawing::Size( 200, 30 ),Point(50,160),this );
ServiceObjectControl^ control3 = gcnew ServiceObjectControl( control1,System::Drawing::Size( 200, 30 ),Point(50,240),this );
// Create second tier A - pass parent with service object control 2
ServiceObjectControl^ control4 = gcnew ServiceObjectControl( control2,System::Drawing::Size( 180, 20 ),Point(300,145),this );
ServiceObjectControl^ control5 = gcnew ServiceObjectControl( control2,System::Drawing::Size( 180, 20 ),Point(300,185),this );
// Create second tier B - pass parent with service object control 3
ServiceObjectControl^ control6 = gcnew ServiceObjectControl( control3,System::Drawing::Size( 180, 20 ),Point(300,225),this );
ServiceObjectControl^ control7 = gcnew ServiceObjectControl( control3,System::Drawing::Size( 180, 20 ),Point(300,265),this );
// Add controls.
array<Control^>^temp1 = {control1,control2,control3,control4,control5,control6,control7};
this->Controls->AddRange( temp1 );
}
void ServiceForm::ResetServiceTree( Object^ /*sender*/, EventArgs^ /*e*/ )
{
// Remove the service from the service tree.
if ( root->serviceContainer->GetService( TextService::typeid ) != nullptr )
root->serviceContainer->RemoveService( TextService::typeid, true );
// Set all controls to "not obtained" and clear their labels.
for ( int i = 0; i < Controls->Count; i++ )
if ( !Controls[ i ]->Equals( reset_button ) )
{
(dynamic_cast<ServiceObjectControl^>(Controls[ i ]))->state = TextServiceState::ServiceNotObtained;
(dynamic_cast<ServiceObjectControl^>(Controls[ i ]))->label = String::Empty;
(dynamic_cast<ServiceObjectControl^>(Controls[ i ]))->BackColor = Color::Beige;
}
}
void ServiceForm::UpdateServiceCoverage()
{
// Have each control set state to reflect service availability.
for ( int i = 0; i < Controls->Count; i++ )
if ( !Controls[ i ]->Equals( reset_button ) )
(dynamic_cast<ServiceObjectControl^>(Controls[ i ]))->ReflectServiceVisibility();
}
void ServiceForm::InitializeComponent()
{
this->reset_button = gcnew System::Windows::Forms::Button;
this->SuspendLayout();
//
// reset_button
//
this->reset_button->Location = System::Drawing::Point( 392, 88 );
this->reset_button->Name = "reset_button";
this->reset_button->TabIndex = 0;
this->reset_button->TabStop = false;
this->reset_button->Text = "Reset";
this->reset_button->Click += gcnew System::EventHandler( this, &ServiceForm::ResetServiceTree );
//
// ServiceForm
//
this->ClientSize = System::Drawing::Size( 512, 373 );
array<System::Windows::Forms::Control^>^temp2 = {this->reset_button};
this->Controls->AddRange( temp2 );
this->MinimumSize = System::Drawing::Size( 520, 400 );
this->Name = "ServiceForm";
this->Text = "Service Container Architecture Example";
this->ResumeLayout( false );
}
void ServiceForm::OnPaint( System::Windows::Forms::PaintEventArgs^ e )
{
e->Graphics->DrawString( "The following tree diagram represents a hierarchy of linked service containers in controls.",
gcnew System::Drawing::Font( "Arial",9 ), gcnew SolidBrush( Color::Black ), 4, 4 );
e->Graphics->DrawString( "This example demonstrates the propagation behavior of services through a linked service object tree.",
gcnew System::Drawing::Font( "Arial",8 ), gcnew SolidBrush( Color::Black ), 4, 26 );
e->Graphics->DrawString( "Right-click a component to add or replace a text service, or to remove it if the component provided it.",
gcnew System::Drawing::Font( "Arial",8 ), gcnew SolidBrush( Color::Black ), 4, 38 );
e->Graphics->DrawString( "Left-click a component to update text from the text service if available.",
gcnew System::Drawing::Font( "Arial",8 ), gcnew SolidBrush( Color::Black ), 4, 50 );
// Draw lines to represent tree branches.
e->Graphics->DrawLine( gcnew Pen( gcnew SolidBrush( Color::Black ),1 ), 20, 125, 20, 258 );
e->Graphics->DrawLine( gcnew Pen( gcnew SolidBrush( Color::Black ),1 ), 21, 175, 45, 175 );
e->Graphics->DrawLine( gcnew Pen( gcnew SolidBrush( Color::Black ),1 ), 21, 258, 45, 258 );
e->Graphics->DrawLine( gcnew Pen( gcnew SolidBrush( Color::Black ),1 ), 255, 175, 285, 175 );
e->Graphics->DrawLine( gcnew Pen( gcnew SolidBrush( Color::Black ),1 ), 255, 258, 285, 258 );
e->Graphics->DrawLine( gcnew Pen( gcnew SolidBrush( Color::Black ),1 ), 285, 155, 285, 195 );
e->Graphics->DrawLine( gcnew Pen( gcnew SolidBrush( Color::Black ),1 ), 285, 238, 285, 278 );
e->Graphics->DrawLine( gcnew Pen( gcnew SolidBrush( Color::Black ),1 ), 285, 155, 290, 155 );
e->Graphics->DrawLine( gcnew Pen( gcnew SolidBrush( Color::Black ),1 ), 285, 195, 290, 195 );
e->Graphics->DrawLine( gcnew Pen( gcnew SolidBrush( Color::Black ),1 ), 285, 238, 290, 238 );
e->Graphics->DrawLine( gcnew Pen( gcnew SolidBrush( Color::Black ),1 ), 285, 278, 290, 278 );
// Draw color key.
e->Graphics->DrawRectangle( gcnew Pen( gcnew SolidBrush( Color::Black ),1 ), 20, 305, 410, 60 );
int y = 0;
for ( int i = 0; i < 3; i++ )
{
e->Graphics->FillRectangle( gcnew SolidBrush( colorkeys[ y ] ), 25 + (i * 140), 310, 20, 20 );
e->Graphics->DrawRectangle( gcnew Pen( gcnew SolidBrush( Color::Black ),1 ), 25 + (i * 140), 310, 20, 20 );
e->Graphics->DrawString( keystrings[ y ], gcnew System::Drawing::Font( "Arial",8 ), gcnew SolidBrush( Color::Black ),
(float)50 + (i * 140), 315 );
y++;
e->Graphics->FillRectangle( gcnew SolidBrush( colorkeys[ y ] ), 25 + (i * 140), 340, 20, 20 );
e->Graphics->DrawRectangle( gcnew Pen( gcnew SolidBrush( Color::Black ),1 ), 25 + (i * 140), 340, 20, 20 );
e->Graphics->DrawString( keystrings[ y ], gcnew System::Drawing::Font( "Arial",8 ), gcnew SolidBrush( Color::Black ),
(float)50 + (i * 140), 345 );
y++;
}
}
[STAThread]
int main()
{
Application::Run( gcnew ServiceForm );
}
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Windows.Forms;
using System.Windows.Forms.Design;
namespace ServiceArchitectureExample
{
// Example form provides UI for demonstrating service sharing behavior
// of a network of IServiceContainer/IServiceProvider controls.
public class ServiceForm : System.Windows.Forms.Form
{
// Root service container control for tree.
private ServiceObjectControl root;
// Button for clearing any provided services and resetting tree states.
private System.Windows.Forms.Button reset_button;
// Color list used to color code controls.
private Color[] colorkeys;
// Strings used to reflect text service.
private string[] keystrings;
public ServiceForm()
{
InitializeComponent();
CreateServiceControlTree();
colorkeys = new Color[] { Color.Beige, Color.SeaShell, Color.LightGreen, Color.LightBlue, Color.Khaki, Color.CadetBlue };
keystrings = new string[] { "No service use", "Service not accessible", "Service provided", "Service obtained", "Service accessible", "No further access" };
}
private void CreateServiceControlTree()
{
// Create root service control.
ServiceObjectControl control1 = new ServiceObjectControl(null, new Size(300, 40), new Point(10, 80), this);
root = control1;
// Create first tier - pass parent with service object control 1
ServiceObjectControl control2 = new ServiceObjectControl(control1, new Size(200, 30), new Point(50, 160), this);
ServiceObjectControl control3 = new ServiceObjectControl(control1, new Size(200, 30), new Point(50, 240), this);
// Create second tier A - pass parent with service object control 2
ServiceObjectControl control4 = new ServiceObjectControl(control2, new Size(180, 20), new Point(300, 145), this);
ServiceObjectControl control5 = new ServiceObjectControl(control2, new Size(180, 20), new Point(300, 185), this);
// Create second tier B - pass parent with service object control 3
ServiceObjectControl control6 = new ServiceObjectControl(control3, new Size(180, 20), new Point(300, 225), this);
ServiceObjectControl control7 = new ServiceObjectControl(control3, new Size(180, 20), new Point(300, 265), this);
// Add controls.
this.Controls.AddRange( new Control[] { control1, control2, control3, control4, control5, control6, control7 } );
}
internal void ResetServiceTree(object sender, EventArgs e)
{
// Remove the service from the service tree.
if( root.serviceContainer.GetService(typeof(TextService)) != null )
root.serviceContainer.RemoveService(typeof(TextService), true);
// Set all controls to "not obtained" and clear their labels.
for( int i=0; i<Controls.Count; i++ )
if( !Controls[i].Equals(reset_button) )
{
((ServiceObjectControl)Controls[i]).state = TextServiceState.ServiceNotObtained;
((ServiceObjectControl)Controls[i]).label = string.Empty;
((ServiceObjectControl)Controls[i]).BackColor = Color.Beige;
}
}
public void UpdateServiceCoverage()
{
// Have each control set state to reflect service availability.
for( int i=0; i<Controls.Count; i++ )
if( !Controls[i].Equals(reset_button) )
((ServiceObjectControl)Controls[i]).ReflectServiceVisibility();
}
#region Windows Form Designer generated code
private void InitializeComponent()
{
this.reset_button = new System.Windows.Forms.Button();
this.SuspendLayout();
//
// reset_button
//
this.reset_button.Location = new System.Drawing.Point(392, 88);
this.reset_button.Name = "reset_button";
this.reset_button.TabIndex = 0;
this.reset_button.TabStop = false;
this.reset_button.Text = "Reset";
this.reset_button.Click += new System.EventHandler(this.ResetServiceTree);
//
// ServiceForm
//
this.ClientSize = new System.Drawing.Size(512, 373);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.reset_button});
this.MinimumSize = new System.Drawing.Size(520, 400);
this.Name = "ServiceForm";
this.Text = "Service Container Architecture Example";
this.ResumeLayout(false);
}
#endregion
[STAThread]
static void Main()
{
Application.Run(new ServiceForm());
}
protected override void OnPaint(System.Windows.Forms.PaintEventArgs e)
{
e.Graphics.DrawString("The following tree diagram represents a hierarchy of linked service containers in controls.", new Font("Arial", 9), new SolidBrush(Color.Black), 4, 4);
e.Graphics.DrawString("This example demonstrates the propagation behavior of services through a linked service object tree.", new Font("Arial", 8), new SolidBrush(Color.Black), 4, 26);
e.Graphics.DrawString("Right-click a component to add or replace a text service, or to remove it if the component provided it.", new Font("Arial", 8), new SolidBrush(Color.Black), 4, 38);
e.Graphics.DrawString("Left-click a component to update text from the text service if available.", new Font("Arial", 8), new SolidBrush(Color.Black), 4, 50);
// Draw lines to represent tree branches.
e.Graphics.DrawLine(new Pen(new SolidBrush(Color.Black), 1), 20, 125, 20, 258);
e.Graphics.DrawLine(new Pen(new SolidBrush(Color.Black), 1), 21, 175, 45, 175);
e.Graphics.DrawLine(new Pen(new SolidBrush(Color.Black), 1), 21, 258, 45, 258);
e.Graphics.DrawLine(new Pen(new SolidBrush(Color.Black), 1), 255, 175, 285, 175);
e.Graphics.DrawLine(new Pen(new SolidBrush(Color.Black), 1), 255, 258, 285, 258);
e.Graphics.DrawLine(new Pen(new SolidBrush(Color.Black), 1), 285, 155, 285, 195);
e.Graphics.DrawLine(new Pen(new SolidBrush(Color.Black), 1), 285, 238, 285, 278);
e.Graphics.DrawLine(new Pen(new SolidBrush(Color.Black), 1), 285, 155, 290, 155);
e.Graphics.DrawLine(new Pen(new SolidBrush(Color.Black), 1), 285, 195, 290, 195);
e.Graphics.DrawLine(new Pen(new SolidBrush(Color.Black), 1), 285, 238, 290, 238);
e.Graphics.DrawLine(new Pen(new SolidBrush(Color.Black), 1), 285, 278, 290, 278);
// Draw color key.
e.Graphics.DrawRectangle(new Pen(new SolidBrush(Color.Black), 1), 20, 305, 410, 60);
int y=0;
for( int i=0; i<3; i++ )
{
e.Graphics.FillRectangle(new SolidBrush(colorkeys[y]), 25+(i*140), 310, 20, 20);
e.Graphics.DrawRectangle(new Pen(new SolidBrush(Color.Black), 1), 25+(i*140), 310, 20, 20);
e.Graphics.DrawString(keystrings[y], new Font("Arial", 8), new SolidBrush(Color.Black), 50+(i*140), 315);
y++;
e.Graphics.FillRectangle(new SolidBrush(colorkeys[y]), 25+(i*140), 340, 20, 20);
e.Graphics.DrawRectangle(new Pen(new SolidBrush(Color.Black), 1), 25+(i*140), 340, 20, 20);
e.Graphics.DrawString(keystrings[y], new Font("Arial", 8), new SolidBrush(Color.Black), 50+(i*140), 345);
y++;
}
}
}
// An example user control that uses ServiceContainer to add, remove,
// and access services through a linkable service container network.
public class ServiceObjectControl : System.Windows.Forms.UserControl
{
// This example user control implementation provides a wrapper for
// ServiceContainer, supporting a linked service container network.
public ServiceContainer serviceContainer;
// Parent form reference for main program function access.
private ServiceForm parent;
// String for label displayed on the control to indicate the
// control's current service-related configuration state.
public string label;
// The current state of the control reflecting whether it has
// obtained or provided a text service.
private TextServiceState state_;
public TextServiceState state
{
get
{
return state_;
}
set
{
if( (TextServiceState)value == TextServiceState.ServiceProvided )
this.BackColor = Color.LightGreen;
else if( (TextServiceState)value == TextServiceState.ServiceNotObtained )
this.BackColor = Color.White;
else if( (TextServiceState)value == TextServiceState.ServiceObtained )
this.BackColor = Color.LightBlue;
else if( (TextServiceState)value == TextServiceState.ServiceNotFound )
this.BackColor = Color.SeaShell;
state_ = value;
}
}
public ServiceObjectControl(ServiceObjectControl serviceContainerParent, Size size, Point location, ServiceForm parent)
{
this.state_ = TextServiceState.ServiceNotObtained;
this.BackColor = Color.Beige;
this.label = string.Empty;
this.Size = size;
this.Location = location;
this.parent = parent;
if( serviceContainerParent == null )
serviceContainer = new ServiceContainer();
else
serviceContainer = new ServiceContainer(serviceContainerParent.serviceContainer);
}
// Paint method override draws the label string on the control.
protected override void OnPaint(System.Windows.Forms.PaintEventArgs e)
{
e.Graphics.DrawString(label, new Font("Arial", 8), new SolidBrush(Color.Black), 5, 5);
}
// Process mouse-down behavior for click.
protected override void OnMouseDown(System.Windows.Forms.MouseEventArgs e)
{
if( e.Button == MouseButtons.Left )
{
if( state_ != TextServiceState.ServiceProvided )
{
// Attempt to update text from service, and set color
// state accordingly.
TextService ts = (TextService)serviceContainer.GetService(typeof(TextService));
if( ts != null )
{
this.label = ts.text;
state = TextServiceState.ServiceObtained;
}
else
{
this.label = "Service Not Found";
state = TextServiceState.ServiceNotFound;
}
}
}
if( e.Button == MouseButtons.Right )
{
if( state_ == TextServiceState.ServiceProvided )
{
// Remove service if the container provided it.
if( serviceContainer.GetService(typeof(TextService)) != null )
{
serviceContainer.RemoveService(typeof(TextService), true);
state = TextServiceState.ServiceNotObtained;
this.label = "Service Removed";
}
}
else
{
// Obtain string and provide text service.
using (StringInputDialog form = new StringInputDialog("Test String"))
{
form.StartPosition = FormStartPosition.CenterParent;
if (form.ShowDialog() == DialogResult.OK)
{
if (serviceContainer.GetService(typeof(TextService)) != null)
serviceContainer.RemoveService(typeof(TextService), true);
parent.ResetServiceTree(this, new EventArgs());
serviceContainer.AddService(typeof(TextService), new TextService(form.inputTextBox.Text), true);
state = TextServiceState.ServiceProvided;
this.label = "Provided Text: " + form.inputTextBox.Text;
}
}
}
}
parent.UpdateServiceCoverage();
}
// Method accesses the TextService to test the visibility of the service
// from the control, and sets the UI state accordingly.
public void ReflectServiceVisibility()
{
if( state_ == TextServiceState.ServiceObtained )
{
if( serviceContainer.GetService(typeof(TextService)) == null )
this.BackColor = Color.CadetBlue;
}
else if( state_ != TextServiceState.ServiceProvided )
{
if( serviceContainer.GetService(typeof(TextService)) == null )
{
this.BackColor = Color.White;
return;
}
// Service available.
if( state_ == TextServiceState.ServiceNotFound )
this.BackColor = Color.Khaki;
else if( state_ == TextServiceState.ServiceNotObtained && label != "Service Removed" )
this.BackColor = Color.Khaki;
}
}
}
// Example service type contains a text string, sufficient
// to demonstrate service sharing.
public class TextService
{
public string text;
public TextService() : this(string.Empty)
{
}
public TextService(string text)
{
this.text = text;
}
}
public enum TextServiceState
{
ServiceNotObtained,
ServiceObtained,
ServiceProvided,
ServiceNotFound
}
// Example Form for entering a string.
internal class StringInputDialog : System.Windows.Forms.Form
{
private System.Windows.Forms.Button ok_button;
private System.Windows.Forms.Button cancel_button;
public System.Windows.Forms.TextBox inputTextBox;
public StringInputDialog(string text)
{
InitializeComponent();
inputTextBox.Text = text;
}
private void InitializeComponent()
{
this.ok_button = new System.Windows.Forms.Button();
this.cancel_button = new System.Windows.Forms.Button();
this.inputTextBox = new System.Windows.Forms.TextBox();
this.SuspendLayout();
this.ok_button.Anchor = (System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right);
this.ok_button.Location = new System.Drawing.Point(180, 43);
this.ok_button.Name = "ok_button";
this.ok_button.TabIndex = 1;
this.ok_button.Text = "OK";
this.ok_button.DialogResult = System.Windows.Forms.DialogResult.OK;
this.cancel_button.Anchor = (System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right);
this.cancel_button.Location = new System.Drawing.Point(260, 43);
this.cancel_button.Name = "cancel_button";
this.cancel_button.TabIndex = 2;
this.cancel_button.Text = "Cancel";
this.cancel_button.DialogResult = System.Windows.Forms.DialogResult.Cancel;
this.inputTextBox.Location = new System.Drawing.Point(6, 9);
this.inputTextBox.Name = "inputTextBox";
this.inputTextBox.Size = new System.Drawing.Size(327, 20);
this.inputTextBox.TabIndex = 0;
this.inputTextBox.Text = "";
this.inputTextBox.Anchor = ((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right);
this.ClientSize = new System.Drawing.Size(342, 73);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.inputTextBox,
this.cancel_button,
this.ok_button});
this.MinimumSize = new System.Drawing.Size(350, 100);
this.Name = "StringInputDialog";
this.Text = "Text Service Provide String Dialog";
this.ResumeLayout(false);
}
}
}
Imports System.Drawing
Imports System.Collections
Imports System.ComponentModel
Imports System.ComponentModel.Design
Imports System.Windows.Forms
Imports System.Windows.Forms.Design
' Example form provides UI for demonstrating service sharing behavior
' of a network of IServiceContainer/IServiceProvider controls.
Public Class ServiceForm
Inherits System.Windows.Forms.Form
' Root service container control for tree.
Private root As ServiceObjectControl
' Button for clearing any provided services and resetting tree states.
Private WithEvents reset_button As System.Windows.Forms.Button
' Color list used to color code controls.
Private colorkeys() As Color
' Strings used to reflect text service.
Private keystrings() As String
Public Sub New()
InitializeComponent()
CreateServiceControlTree()
colorkeys = New Color() {Color.Beige, Color.SeaShell, Color.LightGreen, Color.LightBlue, Color.Khaki, Color.CadetBlue}
keystrings = New String() {"No service use", "Service not accessible", "Service provided", "Service obtained", "Service accessible", "No further access"}
End Sub
Private Sub CreateServiceControlTree()
' Create root service control.
Dim control1 As New ServiceObjectControl(Nothing, New Size(300, 40), New Point(10, 80), Me)
root = control1
' Create first tier - pass parent with service object control 1
Dim control2 As New ServiceObjectControl(control1, New Size(200, 30), New Point(50, 160), Me)
Dim control3 As New ServiceObjectControl(control1, New Size(200, 30), New Point(50, 240), Me)
' Create second tier A - pass parent with service object control 2
Dim control4 As New ServiceObjectControl(control2, New Size(180, 20), New Point(300, 145), Me)
Dim control5 As New ServiceObjectControl(control2, New Size(180, 20), New Point(300, 185), Me)
' Create second tier B - pass parent with service object control 3
Dim control6 As New ServiceObjectControl(control3, New Size(180, 20), New Point(300, 225), Me)
Dim control7 As New ServiceObjectControl(control3, New Size(180, 20), New Point(300, 265), Me)
' Add controls.
Me.Controls.AddRange(New Control() {control1, control2, control3, control4, control5, control6, control7})
End Sub
Friend Sub ResetServiceTree(ByVal sender As Object, ByVal e As EventArgs) Handles reset_button.Click
' Remove the service from the service tree.
If (root.serviceContainer.GetService(GetType(TextService)) IsNot Nothing) Then
root.serviceContainer.RemoveService(GetType(TextService), True)
End If
' Set all controls to "not obtained" and clear their labels.
Dim i As Integer
For i = 0 To Controls.Count - 1
If Not Controls(i).Equals(reset_button) Then
CType(Controls(i), ServiceObjectControl).state = TextServiceState.ServiceNotObtained
CType(Controls(i), ServiceObjectControl).label = String.Empty
CType(Controls(i), ServiceObjectControl).BackColor = Color.Beige
End If
Next i
End Sub
Public Sub UpdateServiceCoverage()
' Have each control set state to reflect service availability.
Dim i As Integer
For i = 0 To Controls.Count - 1
If Not Controls(i).Equals(reset_button) Then
CType(Controls(i), ServiceObjectControl).ReflectServiceVisibility()
End If
Next i
End Sub
Private Sub InitializeComponent()
Me.reset_button = New System.Windows.Forms.Button()
Me.SuspendLayout()
'
'reset_button
'
Me.reset_button.Location = New System.Drawing.Point(392, 88)
Me.reset_button.Name = "reset_button"
Me.reset_button.TabIndex = 0
Me.reset_button.TabStop = False
Me.reset_button.Text = "Reset"
'
'ServiceForm
'
Me.ClientSize = New System.Drawing.Size(512, 373)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.reset_button})
Me.MinimumSize = New System.Drawing.Size(520, 400)
Me.Name = "ServiceForm"
Me.Text = "Service Container Architecture Example"
Me.ResumeLayout(False)
End Sub
<STAThread()> _
Shared Sub Main()
Application.Run(New ServiceForm())
End Sub
Protected Overrides Sub OnPaint(ByVal e As System.Windows.Forms.PaintEventArgs)
e.Graphics.DrawString("The following tree diagram represents a hierarchy of linked service containers in controls.", New Font("Arial", 9), New SolidBrush(Color.Black), 4, 4)
e.Graphics.DrawString("This example demonstrates the propagation behavior of services through a linked service object tree.", New Font("Arial", 8), New SolidBrush(Color.Black), 4, 26)
e.Graphics.DrawString("Right-click a component to add or replace a text service, or to remove it if the component provided it.", New Font("Arial", 8), New SolidBrush(Color.Black), 4, 38)
e.Graphics.DrawString("Left-click a component to update text from the text service if available.", New Font("Arial", 8), New SolidBrush(Color.Black), 4, 50)
' Draw lines to represent tree branches.
e.Graphics.DrawLine(New Pen(New SolidBrush(Color.Black), 1), 20, 125, 20, 258)
e.Graphics.DrawLine(New Pen(New SolidBrush(Color.Black), 1), 21, 175, 45, 175)
e.Graphics.DrawLine(New Pen(New SolidBrush(Color.Black), 1), 21, 258, 45, 258)
e.Graphics.DrawLine(New Pen(New SolidBrush(Color.Black), 1), 255, 175, 285, 175)
e.Graphics.DrawLine(New Pen(New SolidBrush(Color.Black), 1), 255, 258, 285, 258)
e.Graphics.DrawLine(New Pen(New SolidBrush(Color.Black), 1), 285, 155, 285, 195)
e.Graphics.DrawLine(New Pen(New SolidBrush(Color.Black), 1), 285, 238, 285, 278)
e.Graphics.DrawLine(New Pen(New SolidBrush(Color.Black), 1), 285, 155, 290, 155)
e.Graphics.DrawLine(New Pen(New SolidBrush(Color.Black), 1), 285, 195, 290, 195)
e.Graphics.DrawLine(New Pen(New SolidBrush(Color.Black), 1), 285, 238, 290, 238)
e.Graphics.DrawLine(New Pen(New SolidBrush(Color.Black), 1), 285, 278, 290, 278)
' Draw color key.
e.Graphics.DrawRectangle(New Pen(New SolidBrush(Color.Black), 1), 20, 305, 410, 60)
Dim y As Integer = 0
Dim i As Integer
For i = 0 To 2
e.Graphics.FillRectangle(New SolidBrush(colorkeys(y)), 25 + i * 140, 310, 20, 20)
e.Graphics.DrawRectangle(New Pen(New SolidBrush(Color.Black), 1), 25 + i * 140, 310, 20, 20)
e.Graphics.DrawString(keystrings(y), New Font("Arial", 8), New SolidBrush(Color.Black), 50 + i * 140, 315)
y += 1
e.Graphics.FillRectangle(New SolidBrush(colorkeys(y)), 25 + i * 140, 340, 20, 20)
e.Graphics.DrawRectangle(New Pen(New SolidBrush(Color.Black), 1), 25 + i * 140, 340, 20, 20)
e.Graphics.DrawString(keystrings(y), New Font("Arial", 8), New SolidBrush(Color.Black), 50 + i * 140, 345)
y += 1
Next i
End Sub
End Class
' An example user control that uses ServiceContainer to add, remove,
' and access services through a linkable service container network.
Public Class ServiceObjectControl
Inherits System.Windows.Forms.UserControl
' This example user control implementation provides a wrapper for
' ServiceContainer, supporting a linked service container network.
Public serviceContainer As serviceContainer
' Parent form reference for main program function access.
Private parentserviceForm As ServiceForm
' String for label displayed on the control to indicate the
' control's current service-related configuration state.
Public label As String
' The current state of the control reflecting whether it has
' obtained or provided a text service.
Private state_ As TextServiceState
Public Property state() As TextServiceState
Get
Return state_
End Get
Set(ByVal Value As TextServiceState)
If CType(Value, TextServiceState) = TextServiceState.ServiceProvided Then
Me.BackColor = Color.LightGreen
ElseIf CType(Value, TextServiceState) = TextServiceState.ServiceNotObtained Then
Me.BackColor = Color.White
ElseIf CType(Value, TextServiceState) = TextServiceState.ServiceObtained Then
Me.BackColor = Color.LightBlue
ElseIf CType(Value, TextServiceState) = TextServiceState.ServiceNotFound Then
Me.BackColor = Color.SeaShell
End If
state_ = Value
End Set
End Property
Public Sub New(ByVal serviceContainerParent As ServiceObjectControl, ByVal size As Size, ByVal location As Point, ByVal parent As ServiceForm)
Me.state_ = TextServiceState.ServiceNotObtained
Me.BackColor = Color.Beige
Me.label = String.Empty
Me.Size = size
Me.Location = location
Me.parentserviceForm = parent
If serviceContainerParent Is Nothing Then
serviceContainer = New ServiceContainer()
Else
serviceContainer = New ServiceContainer(serviceContainerParent.serviceContainer)
End If
End Sub
' Paint method override draws the label string on the control.
Protected Overrides Sub OnPaint(ByVal e As System.Windows.Forms.PaintEventArgs)
e.Graphics.DrawString(label, New Font("Arial", 8), New SolidBrush(Color.Black), 5, 5)
End Sub
' Process mouse-down behavior for click.
Protected Overrides Sub OnMouseDown(ByVal e As System.Windows.Forms.MouseEventArgs)
If e.Button = System.Windows.Forms.MouseButtons.Left Then
If state_ <> TextServiceState.ServiceProvided Then
' Attempt to update text from service, and set color
' state accordingly.
Dim ts As TextService = CType(serviceContainer.GetService(GetType(TextService)), TextService)
If (ts IsNot Nothing) Then
Me.label = ts.text
state = TextServiceState.ServiceObtained
Else
Me.label = "Service Not Found"
state = TextServiceState.ServiceNotFound
End If
End If
End If
If e.Button = System.Windows.Forms.MouseButtons.Right Then
If state_ = TextServiceState.ServiceProvided Then
' Remove service if the container provided it.
If (serviceContainer.GetService(GetType(TextService)) IsNot Nothing) Then
serviceContainer.RemoveService(GetType(TextService), True)
state = TextServiceState.ServiceNotObtained
Me.label = "Service Removed"
End If
Else
' Obtain string and provide text service.
Using form As New StringInputDialog("Test String")
form.StartPosition = FormStartPosition.CenterParent
If form.ShowDialog() = DialogResult.OK Then
If (serviceContainer.GetService(GetType(TextService)) IsNot Nothing) Then
serviceContainer.RemoveService(GetType(TextService), True)
End If
parentserviceForm.ResetServiceTree(Me, New EventArgs())
serviceContainer.AddService(GetType(TextService), New TextService(form.inputTextBox.Text), True)
state = TextServiceState.ServiceProvided
Me.label = "Provided Text: " + form.inputTextBox.Text
End If
End Using
End If
End If
parentserviceForm.UpdateServiceCoverage()
End Sub
' Method accesses the TextService to test the visibility of the service
' from the control, and sets the UI state accordingly.
Public Sub ReflectServiceVisibility()
If state_ = TextServiceState.ServiceObtained Then
If serviceContainer.GetService(GetType(TextService)) Is Nothing Then
Me.BackColor = Color.CadetBlue
End If
ElseIf state_ <> TextServiceState.ServiceProvided Then
If serviceContainer.GetService(GetType(TextService)) Is Nothing Then
Me.BackColor = Color.White
Return
End If
' Service available.
If state_ = TextServiceState.ServiceNotFound Then
Me.BackColor = Color.Khaki
ElseIf state_ = TextServiceState.ServiceNotObtained AndAlso label <> "Service Removed" Then
Me.BackColor = Color.Khaki
End If
End If
End Sub
End Class
' Example service type contains a text string, sufficient
' for use to demonstrate service sharing.
Public Class TextService
Public [text] As String
Public Sub New()
MyClass.New(String.Empty)
End Sub
Public Sub New(ByVal [text] As String)
Me.text = [text]
End Sub
End Class
Public Enum TextServiceState
ServiceNotObtained
ServiceObtained
ServiceProvided
ServiceNotFound
End Enum
' Example Form for entering a string.
Friend Class StringInputDialog
Inherits System.Windows.Forms.Form
Private ok_button As System.Windows.Forms.Button
Private cancel_button As System.Windows.Forms.Button
Public inputTextBox As System.Windows.Forms.TextBox
Public Sub New(ByVal [text] As String)
InitializeComponent()
inputTextBox.Text = [text]
End Sub
Private Sub InitializeComponent()
Me.ok_button = New System.Windows.Forms.Button()
Me.cancel_button = New System.Windows.Forms.Button()
Me.inputTextBox = New System.Windows.Forms.TextBox()
Me.SuspendLayout()
Me.ok_button.Anchor = System.Windows.Forms.AnchorStyles.Bottom Or System.Windows.Forms.AnchorStyles.Right
Me.ok_button.Location = New System.Drawing.Point(180, 43)
Me.ok_button.Name = "ok_button"
Me.ok_button.TabIndex = 1
Me.ok_button.Text = "OK"
Me.ok_button.DialogResult = System.Windows.Forms.DialogResult.OK
Me.cancel_button.Anchor = System.Windows.Forms.AnchorStyles.Bottom Or System.Windows.Forms.AnchorStyles.Right
Me.cancel_button.Location = New System.Drawing.Point(260, 43)
Me.cancel_button.Name = "cancel_button"
Me.cancel_button.TabIndex = 2
Me.cancel_button.Text = "Cancel"
Me.cancel_button.DialogResult = System.Windows.Forms.DialogResult.Cancel
Me.inputTextBox.Location = New System.Drawing.Point(6, 9)
Me.inputTextBox.Name = "inputTextBox"
Me.inputTextBox.Size = New System.Drawing.Size(327, 20)
Me.inputTextBox.TabIndex = 0
Me.inputTextBox.Text = ""
Me.inputTextBox.Anchor = System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Left Or System.Windows.Forms.AnchorStyles.Right
Me.ClientSize = New System.Drawing.Size(342, 73)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.inputTextBox, Me.cancel_button, Me.ok_button})
Me.MinimumSize = New System.Drawing.Size(350, 100)
Me.Name = "StringInputDialog"
Me.Text = "Text Service Provide String Dialog"
Me.ResumeLayout(False)
End Sub
End Class
설명
개체를 ServiceContainer 사용하여 서비스를 저장하고 제공할 수 있습니다. ServiceContainer는 IServiceContainer 인터페이스를 구현합니다.
개체는 ServiceContainer 선택적으로 즉시 부모 를 포함하여 IServiceContainer모든 부모 IServiceContainer 개체에 서비스를 추가하거나 제거할 수 있는 부모를 IServiceContainer 추가하는 생성자를 사용하여 만들 수 있습니다. 육아를 통해 연결된 IServiceContainer 모든 IServiceContainer 구현에서 서비스를 추가하거나 제거하려면 서비스 요청을 승격할지 여부를 나타내는 부울 값을 허용하는 또는 RemoveService 메서드 오버로드를 호출 AddService 합니다.
참고
합니다 HostProtectionAttribute 이 클래스에 적용 된 특성에는 다음과 같은 Resources 속성 값: SharedState합니다. HostProtectionAttribute는 대개 아이콘을 두 번 클릭하거나, 명령을 입력하거나, 브라우저에서 URL을 입력하여 시작되는 데스크톱 애플리케이션에 영향을 미치지 않습니다. 자세한 내용은 참조는 HostProtectionAttribute 클래스 또는 SQL Server 프로그래밍 및 호스트 보호 특성합니다.
생성자
ServiceContainer() |
ServiceContainer 클래스의 새 인스턴스를 초기화합니다. |
ServiceContainer(IServiceProvider) |
지정된 부모 서비스 공급자를 사용하여 ServiceContainer 클래스의 새 인스턴스를 초기화합니다. |
속성
DefaultServices |
ServiceContainer에 의해 직접 구현된 기본 서비스를 가져옵니다. |
메서드
AddService(Type, Object) |
지정한 서비스를 서비스 컨테이너에 추가합니다. |
AddService(Type, Object, Boolean) |
지정한 서비스를 서비스 컨테이너에 추가합니다. |
AddService(Type, ServiceCreatorCallback) |
지정한 서비스를 서비스 컨테이너에 추가합니다. |
AddService(Type, ServiceCreatorCallback, Boolean) |
지정한 서비스를 서비스 컨테이너에 추가합니다. |
Dispose() |
이 서비스 컨테이너를 삭제합니다. |
Dispose(Boolean) |
이 서비스 컨테이너를 삭제합니다. |
Equals(Object) |
지정된 개체가 현재 개체와 같은지 확인합니다. (다음에서 상속됨 Object) |
GetHashCode() |
기본 해시 함수로 작동합니다. (다음에서 상속됨 Object) |
GetService(Type) |
요청한 서비스를 가져옵니다. |
GetType() |
현재 인스턴스의 Type을 가져옵니다. (다음에서 상속됨 Object) |
MemberwiseClone() |
현재 Object의 단순 복사본을 만듭니다. (다음에서 상속됨 Object) |
RemoveService(Type) |
지정한 서비스 유형을 서비스 컨테이너에서 제거합니다. |
RemoveService(Type, Boolean) |
지정한 서비스 유형을 서비스 컨테이너에서 제거합니다. |
ToString() |
현재 개체를 나타내는 문자열을 반환합니다. (다음에서 상속됨 Object) |
확장 메서드
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