ControlDesigner.ActionLists 속성

정의

네임스페이스:

System.Web.UI.Design

어셈블리:

System.Design.dll

컨트롤 디자이너에 대한 작업 목록 컬렉션을 가져옵니다.

public:
 virtual property System::ComponentModel::Design::DesignerActionListCollection ^ ActionLists { System::ComponentModel::Design::DesignerActionListCollection ^ get(); };

public override System.ComponentModel.Design.DesignerActionListCollection ActionLists { get; }

member this.ActionLists : System.ComponentModel.Design.DesignerActionListCollection

Public Overrides ReadOnly Property ActionLists As DesignerActionListCollection

속성 값

DesignerActionListCollection

컨트롤 디자이너에 대한 DesignerActionList 항목을 포함하는 DesignerActionListCollection 개체입니다.

예제

다음 코드 예제에서는 만드는 방법을 보여 줍니다.는 간단한 복합 컨트롤을 Label 만드는 방법에 설명 합니다 및 TextBox 컨트롤과 함께 속성 내부 컨트롤에 Text 속성을 설정 하 고 또한 Width 는 및 BackColor 컨트롤의 TextBox 속성입니다. 연결된 컨트롤 디자이너 클래스는 각각 컨트롤에 두 개의 속성을 설정하고 디자인 호스트의 실행 취소 기능으로 롤백할 수 있는 세 DesignerActionMethodItem 가지 명령을 만듭니다.

using System;
using System.Web;
using System.Web.UI;
using System.Drawing;
using System.Collections;
using System.Web.UI.WebControls;
using System.Web.UI.Design;
using System.ComponentModel;
using System.ComponentModel.Design;

namespace ASPNet.Samples
{
    // Create a custom control class with a Label and TextBox
    [System.Security.Permissions.PermissionSetAttribute(
        System.Security.Permissions.SecurityAction.InheritanceDemand,
        Name = "FullTrust")]
    [System.Security.Permissions.PermissionSetAttribute(
        System.Security.Permissions.SecurityAction.Demand,
        Name = "FullTrust")]
    [DesignerAttribute(typeof(SampleControlDesigner))]
    public class SampleControl : CompositeControl
    {
        int defaultWidth = 150;

        public SampleControl()
        {
        }

        // Create a set of public properties
        [Browsable(true), Bindable(true), DefaultValue(""),
            PersistenceMode(PersistenceMode.Attribute)]
        public string LabelText
        {
            get
            {
                EnsureChildControls();
                return MyLabel.Text;
            }
            set
            {
                EnsureChildControls();
                MyLabel.Text = value;
            }
        }

        [Browsable(true), Bindable(true), DefaultValue(""),
            PersistenceMode(PersistenceMode.Attribute)]
        public string BoxText
        {
            get
            { 
                EnsureChildControls();
                return MyTextBox.Text;
            }
            set
            {
                EnsureChildControls();
                MyTextBox.Text = value;
            }
        }

        [Browsable(true), Bindable(true), Category("Appearance"),
            PersistenceMode(PersistenceMode.Attribute)]
        public Unit BoxWidth
        {
            get
            {
                EnsureChildControls();
                return MyTextBox.Width;
            }
            set
            {
                EnsureChildControls();
                MyTextBox.Width = value;
            }
        }

        [Browsable(true), Bindable(true), Category("Appearance"),
            PersistenceMode(PersistenceMode.Attribute)]
        public override Color BackColor
        {
            get
            {
                EnsureChildControls();
                return MyTextBox.BackColor;
           }
            set
            {
                EnsureChildControls();
                MyTextBox.BackColor = value;
            }
        }

        // Create private properties
        private TextBox MyTextBox
        {
            get
            {
                EnsureChildControls();
                return (TextBox)FindControl("MyTextBox");
            }
        }
        private Label MyLabel
        {
            get
            {
                EnsureChildControls();
                return (Label)FindControl("MyLabel");
            }
        }

        // Create a label and a text box.
        protected override void CreateChildControls()
        {
            // Clear the controls
            Controls.Clear();

            // Create a Label control
            Label localLabel = new Label();
            localLabel.EnableViewState = false;
            localLabel.ID = "MyLabel";
            localLabel.Text = localLabel.ID + ": ";
            Controls.Add(localLabel);

            // Create a TextBox control
            TextBox localTextBox = new TextBox();
            localTextBox.ID = "MyTextBox";
            localTextBox.Width = defaultWidth;
            Controls.Add(localTextBox);
        }
    }

    // Create a designer class for the SampleControl
    [System.Security.Permissions.SecurityPermission(
        System.Security.Permissions.SecurityAction.Demand, 
        Flags = System.Security.Permissions.SecurityPermissionFlag.UnmanagedCode)]
    public class SampleControlDesigner : ControlDesigner
    {
        // Constructor
        public SampleControlDesigner() : base()
        {
        }

        // Do not allow resizing; force use of properties to set width
        public override bool AllowResize
        {
            get { return false; }
        }

        // Create a custom ActionLists collection
        public override DesignerActionListCollection ActionLists
        {
            get
            {
                // Create the collection
                DesignerActionListCollection actionLists = new DesignerActionListCollection();

                // Get the base items, if any
                actionLists.AddRange(base.ActionLists);

                // Add a custom list of actions
                actionLists.Add(new CustomControlActionList(this));

                return actionLists;
            }
        }

        // Create an embedded DesignerActionList class
        private class CustomControlActionList : DesignerActionList
        {
            // Create private fields
            private SampleControlDesigner _parent;
            private DesignerActionItemCollection items;

            // Constructor
            public CustomControlActionList(SampleControlDesigner parent)
                : base(parent.Component)
            {
                _parent = parent;
            }

            // Create a set of transacted callback methods
            // Callback for the wide format
            public void FormatWide()
            {
                SampleControl ctrl = (SampleControl)_parent.Component;
                
                // Create the callback
                TransactedChangeCallback toCall = new TransactedChangeCallback(DoFormat);
                // Create the transacted change in the control
                ControlDesigner.InvokeTransactedChange(ctrl, toCall, "FormatWide", "Use a wide format");
            }

            // Callback for the medium format
            public void FormatMedium()
            {
                SampleControl ctrl = (SampleControl)_parent.Component;
                
                // Create the callback
                TransactedChangeCallback toCall = new TransactedChangeCallback(DoFormat);
                // Create the transacted change in the control
                ControlDesigner.InvokeTransactedChange(ctrl, toCall, "FormatMedium", "Use a medium format");
            }

            // Callback for the narrow format
            public void FormatNarrow()
            {
                SampleControl ctrl = (SampleControl)_parent.Component;
                
                // Create the callback
                TransactedChangeCallback toCall = new TransactedChangeCallback(DoFormat);
                // Create the transacted change in the control
                ControlDesigner.InvokeTransactedChange(ctrl, toCall, "FormatNarrow", "Use a narrow format");
            }

            // Get the sorted list of Action items
            public override DesignerActionItemCollection GetSortedActionItems()
            {
                if (items == null)
                {
                    // Create the collection
                    items = new DesignerActionItemCollection();

                    // Add a header to the list
                    items.Add(new DesignerActionHeaderItem("Select a Style:"));

                    // Add three commands
                    items.Add(new DesignerActionMethodItem(this, "FormatWide", "Format Wide", true));
                    items.Add(new DesignerActionMethodItem(this, "FormatMedium", "Format Medium", true));
                    items.Add(new DesignerActionMethodItem(this, "FormatNarrow", "Format Narrow", true));
                }
                return items;
            }

            // Function for the callbacks to call
            public bool DoFormat(object arg)
            {
                // Get a reference to the designer's associated component
                SampleControl ctl = (SampleControl)_parent.Component;

                // Get the format name from the arg
                string fmt = (string)arg;

                // Create property descriptors
                PropertyDescriptor widthProp = TypeDescriptor.GetProperties(ctl)["BoxWidth"];
                PropertyDescriptor backColorProp = TypeDescriptor.GetProperties(ctl)["BackColor"];

                // For the selected format, set two properties
                switch (fmt)
                {
                    case "FormatWide":
                        widthProp.SetValue(ctl, Unit.Pixel(250));
                        backColorProp.SetValue(ctl, Color.LightBlue);
                        break;
                    case "FormatNarrow":
                        widthProp.SetValue(ctl, Unit.Pixel(100));
                        backColorProp.SetValue(ctl, Color.LightCoral);
                        break;
                    case "FormatMedium":
                        widthProp.SetValue(ctl, Unit.Pixel(150));
                        backColorProp.SetValue(ctl, Color.White);
                        break;
                }
                _parent.UpdateDesignTimeHtml();

                // Return an indication of success
                return true;
            }
        }
    }
}

Imports System.Web
Imports System.Web.UI
Imports System.Drawing
Imports System.Collections
Imports System.Web.UI.WebControls
Imports System.Web.UI.Design
Imports System.ComponentModel
Imports System.ComponentModel.Design

Namespace ASPNet.Samples

    ' Create a custom control class with a Label and TextBox
    <System.Security.Permissions.PermissionSetAttribute(System.Security.Permissions.SecurityAction.InheritanceDemand, Name:="FullTrust")> _
    <System.Security.Permissions.PermissionSetAttribute(System.Security.Permissions.SecurityAction.Demand, Name:="FullTrust")> _
    <Designer("ASPNet.Samples.SampleControlDesigner")> _
    Public Class SampleControl
        Inherits CompositeControl

        Dim defaultWidth As Integer = 150

        Public Sub New()

        End Sub

        ' Create a set of Public properties
        <Bindable(True), DefaultValue(""), _
            PersistenceMode(PersistenceMode.Attribute)> _
        Public Property LabelText() As String
            Get
                EnsureChildControls()
                Return MyLabel.Text
            End Get
            Set(ByVal value As String)
                EnsureChildControls()
                MyLabel.Text = value
            End Set
        End Property

        <Bindable(True), DefaultValue(""), _
            PersistenceMode(PersistenceMode.Attribute)> _
        Public Property BoxText() As String
            Get
                EnsureChildControls()
                Return MyTextBox.Text
            End Get
            Set(ByVal value As String)
                EnsureChildControls()
                MyTextBox.Text = value
            End Set
        End Property

        <Bindable(True), Category("Appearance"), _
            PersistenceMode(PersistenceMode.Attribute)> _
        Public Property BoxWidth() As Unit
            Get
                EnsureChildControls()
                Return MyTextBox.Width
            End Get
            Set(ByVal value As Unit)
                EnsureChildControls()
                MyTextBox.Width = value
            End Set
        End Property

        <Bindable(True), Category("Appearance"), _
            PersistenceMode(PersistenceMode.Attribute)> _
        Public Overrides Property BackColor() As Color
            Get
                EnsureChildControls()
                Return MyTextBox.BackColor()
            End Get
            Set(ByVal value As Color)
                EnsureChildControls()
                MyTextBox.BackColor = value
            End Set
        End Property

        ' Create private properties
        Private ReadOnly Property MyTextBox() As TextBox
            Get
                EnsureChildControls()
                Return CType(FindControl("MyTextBox"), TextBox)
            End Get
        End Property
        Private ReadOnly Property MyLabel() As Label
            Get
                EnsureChildControls()
                Return CType(FindControl("MyLabel"), Label)
            End Get
        End Property

        ' Create a Label and a TextBox
        Protected Overrides Sub CreateChildControls()
            Controls.Clear()
            MyBase.CreateChildControls()

            ' Create a Label control
            Dim localLabel As New Label()
            localLabel.ID = "MyLabel"
            localLabel.Text = localLabel.ID + ": "
            localLabel.EnableViewState = False
            Controls.Add(localLabel)

            ' Create a TextBox control
            Dim localTextBox As New TextBox()
            localTextBox.ID = "MyTextBox"
            localTextBox.Width = defaultWidth
            localTextBox.EnableViewState = False
            Controls.Add(localTextBox)
        End Sub
    End Class

    '-----------------------------------------------
    ' Create a designer class for the SampleControl
    <System.Security.Permissions.SecurityPermission(System.Security.Permissions.SecurityAction.Demand, Flags:=System.Security.Permissions.SecurityPermissionFlag.UnmanagedCode)> _
    Public Class SampleControlDesigner
        Inherits ControlDesigner

        Private sampControl As SampleControl

        ' Constructor
        Public Sub New()
            MyBase.New()
        End Sub

        ' Do not allow resizing; force use of properties to set width
        Public Overrides ReadOnly Property AllowResize() As Boolean
            Get
                Return False
            End Get
        End Property

        ' Create a custom ActionLists collection
        Public Overrides ReadOnly Property ActionLists() As DesignerActionListCollection
            Get
                ' Create the collection
                Dim lists As New DesignerActionListCollection()

                ' Get the base items, if any
                lists.AddRange(MyBase.ActionLists)

                ' Add my own list of actions
                lists.Add(New CustomControlActionList(Me))

                Return lists
            End Get
        End Property

        ' Create an embedded DesignerActionList class
        Private Class CustomControlActionList
            Inherits DesignerActionList

            ' Create private fields
            Private _parent As SampleControlDesigner
            Private _items As DesignerActionItemCollection

            ' Constructor
            Public Sub New(ByVal parent As SampleControlDesigner)
                MyBase.New(parent.Component)
                _parent = parent
            End Sub

            ' Create a set of transacted callback methods
            ' Callback for a wide format
            Public Sub FormatWide()
                Dim ctrl As SampleControl = CType(_parent.Component, SampleControl)

                ' Create the callback
                Dim toCall As New TransactedChangeCallback(AddressOf DoFormat)
                ' Create the transacted change in the control
                ControlDesigner.InvokeTransactedChange(ctrl, toCall, "FormatWide", "Use a wide format")
            End Sub

            ' Callback for the medium format
            Public Sub FormatMedium()
                Dim ctrl As SampleControl = CType(_parent.Component, SampleControl)

                ' Create the callback
                Dim toCall As New TransactedChangeCallback(AddressOf DoFormat)
                ' Create the transacted change in the control
                ControlDesigner.InvokeTransactedChange(ctrl, toCall, "FormatMedium", "Use a medium format")
            End Sub

            ' Callback for the narrow format
            Public Sub FormatNarrow()
                Dim ctrl As SampleControl = CType(_parent.Component, SampleControl)

                ' Create the callback
                Dim toCall As New TransactedChangeCallback(AddressOf DoFormat)
                ' Create the transacted change in the control
                ControlDesigner.InvokeTransactedChange(ctrl, toCall, "FormatNarrow", "Use a narrow format")
            End Sub

            ' Get the sorted list of Action items
            Public Overrides Function GetSortedActionItems() As DesignerActionItemCollection
                If IsNothing(_items) Then
                    ' Create the collection
                    _items = New DesignerActionItemCollection()

                    ' Add a header to the list
                    _items.Add(New DesignerActionHeaderItem("Select a Style:"))

                    ' Add three commands
                    _items.Add(New DesignerActionMethodItem(Me, "FormatWide", "Format Wide", True))
                    _items.Add(New DesignerActionMethodItem(Me, "FormatMedium", "Format Medium", True))
                    _items.Add(New DesignerActionMethodItem(Me, "FormatNarrow", "Format Narrow", True))
                End If

                Return _items
            End Function

            ' Function for the callback to call
            Public Function DoFormat(ByVal arg As Object) As Boolean
                ' Get a reference to the designer's associated component
                Dim ctl As SampleControl = CType(_parent.ViewControl(), SampleControl)

                ' Get the format name from the arg
                Dim fmt As String = CType(arg, String)

                ' Create property descriptors
                Dim widthProp As PropertyDescriptor = TypeDescriptor.GetProperties(ctl)("BoxWidth")
                Dim backColorProp As PropertyDescriptor = TypeDescriptor.GetProperties(ctl)("BackColor")

                ' For the selected format, set two properties
                Select Case fmt
                    Case "FormatWide"
                        widthProp.SetValue(ctl, Unit.Pixel(250))
                        backColorProp.SetValue(ctl, Color.LightBlue)
                    Case "FormatNarrow"
                        widthProp.SetValue(ctl, Unit.Pixel(100))
                        backColorProp.SetValue(ctl, Color.LightCoral)
                    Case "FormatMedium"
                        widthProp.SetValue(ctl, Unit.Pixel(150))
                        backColorProp.SetValue(ctl, Color.White)
                End Select

                ' Return an indication of success
                Return True

            End Function
        End Class
    End Class

End Namespace

상속자 참고

디자인 뷰의 사용자 지정 컨트롤에 작업 목록 메뉴를 추가하려면 사용자 지정 컨트롤 디자이너가 속성을 재정의 ActionLists 하여 클래스에서 파생된 사용자 지정 컨트롤 클래스를 DesignerActionList 반환해야 합니다.

추가 정보

• DesignerActionListCollection
• 작업 목록 및 서비스를 사용하는 샘플 컨트롤 디자이너
• ASP.NET 컨트롤 디자이너 개요