DesignerOptionService Kelas
Definisi
Penting
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Menyediakan kelas dasar untuk mendapatkan dan mengatur nilai opsi untuk perancang.
public ref class DesignerOptionService abstract : System::ComponentModel::Design::IDesignerOptionServicepublic abstract class DesignerOptionService : System.ComponentModel.Design.IDesignerOptionServicetype DesignerOptionService = class
interface IDesignerOptionServicePublic MustInherit Class DesignerOptionService
Implements IDesignerOptionService- Warisan
-
DesignerOptionService
- Turunan
- Penerapan
Contoh
Contoh kode berikut menunjukkan mengakses DesignerOptionService untuk menampilkan nilai opsi standar saat ini.
using System;
using System.Collections;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Drawing;
using System.Data;
using System.Windows.Forms;
using System.Windows.Forms.Design;
namespace DesignerOptionServiceExample
{
// This control demonstrates retrieving the standard
// designer option service values in design mode.
public class DesignerOptionServiceControl : System.Windows.Forms.UserControl
{
private DesignerOptionService designerOptionSvc;
public DesignerOptionServiceControl()
{
this.BackColor = Color.Beige;
this.Size = new Size(404, 135);
}
public override System.ComponentModel.ISite Site
{
get
{
return base.Site;
}
set
{
base.Site = value;
// If siting component, attempt to obtain an DesignerOptionService.
if( base.Site != null )
designerOptionSvc = (DesignerOptionService)this.GetService(typeof(DesignerOptionService));
}
}
// Displays control information and current DesignerOptionService
// values, if available.
protected override void OnPaint(System.Windows.Forms.PaintEventArgs e)
{
e.Graphics.DrawString("DesignerOptionServiceControl",
new Font("Arial", 9),
new SolidBrush(Color.Blue), 4, 4);
if( this.DesignMode )
e.Graphics.DrawString("Currently in design mode",
new Font("Arial", 8),
new SolidBrush(Color.Black), 4, 18);
else
e.Graphics.DrawString("Not in design mode. Cannot access DesignerOptionService.",
new Font("Arial", 8),
new SolidBrush(Color.Red), 4, 18);
if( base.Site != null && designerOptionSvc != null )
{
e.Graphics.DrawString("DesignerOptionService provides access to the table of option values listed when",
new Font("Arial", 8),
new SolidBrush(Color.Black), 4, 38);
e.Graphics.DrawString("the Windows Forms Designer\\General tab of the Tools\\Options menu is selected.",
new Font("Arial", 8),
new SolidBrush(Color.Black), 4, 50);
e.Graphics.DrawString("Table of standard value names and current values",
new Font("Arial", 8),
new SolidBrush(Color.Red), 4, 76);
// Displays a table of the standard value names and current values.
int ypos = 90;
// Obtains and shows the size of the standard design-mode grid square.
PropertyDescriptor pd;
pd = designerOptionSvc.Options.Properties["GridSize"];
e.Graphics.DrawString("GridSize",
new Font("Arial", 8),
new SolidBrush(Color.Black), 4, ypos);
e.Graphics.DrawString(pd.GetValue(null).ToString(),
new Font("Arial", 8),
new SolidBrush(Color.Black), 200, ypos);
ypos += 12;
// Uncomment the following code to demonstrate that this
// alternate syntax works the same as the previous syntax.
//pd = designerOptionSvc.Options["WindowsFormsDesigner"].Properties["GridSize"];
//e.Graphics.DrawString("GridSize",
// new Font("Arial", 8),
// new SolidBrush(Color.Black), 4, ypos);
//e.Graphics.DrawString(pd.GetValue(null).ToString(),
// new Font("Arial", 8),
// new SolidBrush(Color.Black), 200, ypos);
//ypos += 12;
//pd = designerOptionSvc.Options["WindowsFormsDesigner"]["General"].Properties["GridSize"];
//e.Graphics.DrawString("GridSize",
// new Font("Arial", 8),
// new SolidBrush(Color.Black), 4, ypos);
//e.Graphics.DrawString(pd.GetValue(null).ToString(),
// new Font("Arial", 8),
// new SolidBrush(Color.Black), 200, ypos);
//ypos += 12;
// Obtains and shows whether the design mode surface grid is enabled.
pd = designerOptionSvc.Options.Properties["ShowGrid"];
e.Graphics.DrawString("ShowGrid",
new Font("Arial", 8),
new SolidBrush(Color.Black), 4, ypos);
e.Graphics.DrawString(pd.GetValue(null).ToString(),
new Font("Arial", 8),
new SolidBrush(Color.Black), 200, ypos);
ypos+=12;
// Obtains and shows whether components should be aligned with the surface grid.
pd = designerOptionSvc.Options.Properties["SnapToGrid"];
e.Graphics.DrawString("SnapToGrid",
new Font("Arial", 8),
new SolidBrush(Color.Black), 4, ypos);
e.Graphics.DrawString(pd.GetValue(null).ToString(),
new Font("Arial", 8),
new SolidBrush(Color.Black), 200, ypos);
ypos += 12;
// Obtains and shows which layout mode is selected.
pd = designerOptionSvc.Options.Properties["LayoutMode"];
e.Graphics.DrawString("LayoutMode",
new Font("Arial", 8),
new SolidBrush(Color.Black), 4, ypos);
e.Graphics.DrawString(pd.GetValue(null).ToString(),
new Font("Arial", 8),
new SolidBrush(Color.Black), 200, ypos);
ypos += 12;
// Obtains and shows whether the Toolbox is automatoically
// populated with custom controls and components.
pd = designerOptionSvc.Options.Properties["AutoToolboxPopulate"];
e.Graphics.DrawString("AutoToolboxPopulate",
new Font("Arial", 8),
new SolidBrush(Color.Black), 4, ypos);
e.Graphics.DrawString(pd.GetValue(null).ToString(),
new Font("Arial", 8),
new SolidBrush(Color.Black), 200, ypos);
ypos += 12;
// Obtains and shows whether the component cache is used.
pd = designerOptionSvc.Options.Properties["UseOptimizedCodeGeneration"];
e.Graphics.DrawString("Optimized Code Generation",
new Font("Arial", 8),
new SolidBrush(Color.Black), 4, ypos);
e.Graphics.DrawString(pd.GetValue(null).ToString(),
new Font("Arial", 8),
new SolidBrush(Color.Black), 200, ypos);
ypos += 12;
// Obtains and shows whether designer actions are automatically opened.
pd = designerOptionSvc.Options.Properties["ObjectBoundSmartTagAutoShow"];
e.Graphics.DrawString("Automatically Open Designer Actions",
new Font("Arial", 8),
new SolidBrush(Color.Black), 4, ypos);
e.Graphics.DrawString(pd.GetValue(null).ToString(),
new Font("Arial", 8),
new SolidBrush(Color.Black), 200, ypos);
}
}
}
}
Imports System.Collections
Imports System.ComponentModel
Imports System.ComponentModel.Design
Imports System.Drawing
Imports System.Data
Imports System.Windows.Forms
Imports System.Windows.Forms.Design
' This control demonstrates retrieving the standard
' designer option service values in design mode.
Public Class DesignerOptionServiceControl
Inherits System.Windows.Forms.UserControl
Private designerOptionSvc As DesignerOptionService
Public Sub New()
Me.BackColor = Color.Beige
Me.Size = New Size(404, 135)
End Sub
Public Overrides Property Site() As System.ComponentModel.ISite
Get
Return MyBase.Site
End Get
Set
MyBase.Site = value
' If siting component, attempt to obtain an DesignerOptionService.
If (MyBase.Site IsNot Nothing) Then
designerOptionSvc = CType(Me.GetService(GetType(DesignerOptionService)), DesignerOptionService)
End If
End Set
End Property
' Displays control information and current DesignerOptionService
' values, if available.
Protected Overrides Sub OnPaint(e As System.Windows.Forms.PaintEventArgs)
e.Graphics.DrawString("DesignerOptionServiceControl", _
New Font("Arial", 9), _
New SolidBrush(Color.Blue), 4, 4)
If Me.DesignMode Then
e.Graphics.DrawString("Currently in design mode", _
New Font("Arial", 8), _
New SolidBrush(Color.Black), 4, 18)
Else
e.Graphics.DrawString("Not in design mode. Cannot access DesignerOptionService.", _
New Font("Arial", 8), _
New SolidBrush(Color.Red), 4, 18)
End If
If (MyBase.Site IsNot Nothing) AndAlso (designerOptionSvc IsNot Nothing) Then
e.Graphics.DrawString("DesignerOptionService provides access to the table of option values listed when", _
New Font("Arial", 8), _
New SolidBrush(Color.Black), 4, 38)
e.Graphics.DrawString("the Windows Forms Designer\General tab of the Tools\Options menu is selected.", _
New Font("Arial", 8), _
New SolidBrush(Color.Black), 4, 50)
e.Graphics.DrawString("Table of standard value names and current values", _
New Font("Arial", 8), _
New SolidBrush(Color.Red), 4, 76)
' Displays a table of the standard value names and current values.
Dim ypos As Integer = 90
' Obtains and shows the size of the standard design-mode grid square.
Dim pd As PropertyDescriptor
pd = designerOptionSvc.Options.Properties("GridSize")
e.Graphics.DrawString("GridSize", _
New Font("Arial", 8), _
New SolidBrush(Color.Black), 4, ypos)
e.Graphics.DrawString(pd.GetValue(Nothing).ToString(), _
New Font("Arial", 8), _
New SolidBrush(Color.Black), 200, ypos)
ypos += 12
' Uncomment the following code to demonstrate that this
' alternate syntax works the same as the previous syntax.
'pd = designerOptionSvc.Options["WindowsFormsDesigner"].Properties["GridSize"];
'e.Graphics.DrawString("GridSize",
' new Font("Arial", 8),
' new SolidBrush(Color.Black), 4, ypos);
'e.Graphics.DrawString(pd.GetValue(null).ToString(),
' new Font("Arial", 8),
' new SolidBrush(Color.Black), 200, ypos);
'ypos += 12;
'pd = designerOptionSvc.Options["WindowsFormsDesigner"]["General"].Properties["GridSize"];
'e.Graphics.DrawString("GridSize",
' new Font("Arial", 8),
' new SolidBrush(Color.Black), 4, ypos);
'e.Graphics.DrawString(pd.GetValue(null).ToString(),
' new Font("Arial", 8),
' new SolidBrush(Color.Black), 200, ypos);
'ypos += 12;
' Obtains and shows whether the design mode surface grid is enabled.
pd = designerOptionSvc.Options.Properties("ShowGrid")
e.Graphics.DrawString("ShowGrid", _
New Font("Arial", 8), _
New SolidBrush(Color.Black), 4, ypos)
e.Graphics.DrawString(pd.GetValue(Nothing).ToString(), _
New Font("Arial", 8), _
New SolidBrush(Color.Black), 200, ypos)
ypos += 12
' Obtains and shows whether components should be aligned with the surface grid.
pd = designerOptionSvc.Options.Properties("SnapToGrid")
e.Graphics.DrawString("SnapToGrid", _
New Font("Arial", 8), _
New SolidBrush(Color.Black), 4, ypos)
e.Graphics.DrawString(pd.GetValue(Nothing).ToString(), _
New Font("Arial", 8), _
New SolidBrush(Color.Black), 200, ypos)
ypos += 12
' Obtains and shows which layout mode is selected.
pd = designerOptionSvc.Options.Properties("LayoutMode")
e.Graphics.DrawString("LayoutMode", _
New Font("Arial", 8), _
New SolidBrush(Color.Black), 4, ypos)
e.Graphics.DrawString(pd.GetValue(Nothing).ToString(), _
New Font("Arial", 8), _
New SolidBrush(Color.Black), 200, ypos)
ypos += 12
' Obtains and shows whether the Toolbox is automatoically
' populated with custom controls and components.
pd = designerOptionSvc.Options.Properties("AutoToolboxPopulate")
e.Graphics.DrawString("AutoToolboxPopulate", _
New Font("Arial", 8), _
New SolidBrush(Color.Black), 4, ypos)
e.Graphics.DrawString(pd.GetValue(Nothing).ToString(), _
New Font("Arial", 8), _
New SolidBrush(Color.Black), 200, ypos)
ypos += 12
' Obtains and shows whether the component cache is used.
pd = designerOptionSvc.Options.Properties("UseOptimizedCodeGeneration")
e.Graphics.DrawString("Optimized Code Generation", _
New Font("Arial", 8), _
New SolidBrush(Color.Black), 4, ypos)
e.Graphics.DrawString(pd.GetValue(Nothing).ToString(), _
New Font("Arial", 8), _
New SolidBrush(Color.Black), 200, ypos)
ypos += 12
' Obtains and shows whether designer actions are automatically opened.
pd = designerOptionSvc.Options.Properties("ObjectBoundSmartTagAutoShow")
e.Graphics.DrawString("Automatically Open Designer Actions", _
New Font("Arial", 8), _
New SolidBrush(Color.Black), 4, ypos)
e.Graphics.DrawString(pd.GetValue(Nothing).ToString(), _
New Font("Arial", 8), _
New SolidBrush(Color.Black), 200, ypos)
End If
End Sub
End Class
Keterangan
Kelas ini DesignerOptionService menyediakan kumpulan opsi. Masing-masing koleksi opsi ini memiliki pengindeks yang memungkinkannya difilter lebih lanjut. Setiap koleksi opsi berisi serangkaian opsinya sendiri, serta rollup dari semua opsi turunannya. Jika terjadi konflik penamaan antar properti, objek opsi terluar diutamakan. Alat berikut | Struktur antarmuka pengguna opsi (UI) menunjukkan bagaimana objek opsi terluar mengambil kepentingan yang lebih besar:
WindowsFormsDesigner | Umum
SnapToGrid
ShowGrid
Ukuran Kisi
IDesignerOptionService Diberi nama service, untuk mendapatkan nilai GridSize properti , Anda akan melakukan panggilan berikut:
// Obtains and shows the size of the standard design-mode grid square.
System::Drawing::Size size = *dynamic_cast<System::Drawing::Size^>(designerOptionService->GetOptionValue( "WindowsFormsDesigner\\General", "GridSize" ));
// Obtains and shows the size of the standard design-mode grid square.
Size size = (Size)designerOptionService.GetOptionValue("WindowsFormsDesigner\\General", "GridSize");
' Obtains and shows the size of the standard design-mode grid square.
Dim size As Size = CType(designerOptionService.GetOptionValue("WindowsFormsDesigner\General", "GridSize"), Size)
Ini berfungsi, sampai Anda ingin pindah GridSize ke halaman lain. Selain itu, IDesignerOptionService tidak menyediakan mekanisme penemuan. Jika Anda tidak tahu string apa yang akan diteruskan, layanan tidak dapat menemukan nilai properti.
Kelas DesignerOptionService mengatasi masalah ini. Anda bisa mengkueri koleksi, dan ada pengonversi jenis yang ditentukan pada DesignerOptionService.DesignerOptionCollection objek yang menandai koleksi sebagai dapat diperluas. Dengan pengonversi jenis ini, Anda dapat meneruskan seluruh layanan opsi perancang ke jendela properti dan memeriksa layanan secara visual.
Konstruktor
| DesignerOptionService() |
Menginisialisasi instans baru kelas DesignerOptionService. |
Properti
| Options |
Mendapatkan koleksi opsi untuk layanan ini. |
Metode
| CreateOptionCollection(DesignerOptionService+DesignerOptionCollection, String, Object) |
Membuat baru DesignerOptionService.DesignerOptionCollection dengan nama yang diberikan dan menambahkannya ke induk yang diberikan. |
| Equals(Object) |
Menentukan apakah objek yang ditentukan sama dengan objek saat ini. (Diperoleh dari Object) |
| GetHashCode() |
Berfungsi sebagai fungsi hash default. (Diperoleh dari Object) |
| GetType() |
Mendapatkan dari instans Type saat ini. (Diperoleh dari Object) |
| MemberwiseClone() |
Membuat salinan dangkal dari saat ini Object. (Diperoleh dari Object) |
| PopulateOptionCollection(DesignerOptionService+DesignerOptionCollection) | |
| ShowDialog(DesignerOptionService+DesignerOptionCollection, Object) |
Memperlihatkan kotak dialog opsi untuk objek yang diberikan. |
| ToString() |
Mengembalikan string yang mewakili objek saat ini. (Diperoleh dari Object) |
Implementasi Antarmuka Eksplisit
| IDesignerOptionService.GetOptionValue(String, String) |
Mendapatkan nilai opsi yang ditentukan dalam paket ini. |
| IDesignerOptionService.SetOptionValue(String, String, Object) |
Mengatur nilai opsi yang ditentukan dalam paket ini. |
Berlaku untuk
Lihat juga
Berkolaborasi dengan kami di GitHub
Sumber untuk konten ini dapat ditemukan di GitHub, yang juga dapat Anda gunakan untuk membuat dan meninjau masalah dan menarik permintaan. Untuk informasi selengkapnya, lihat panduan kontributor kami.
