ToolboxItem 생성자

참조

정의

네임스페이스:: System.Drawing.Design

어셈블리:: System.Drawing.dll

어셈블리:: System.Windows.Forms.Design.dll

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.

ToolboxItem 클래스의 새 인스턴스를 초기화합니다.

오버로드

ToolboxItem()	ToolboxItem 클래스의 새 인스턴스를 초기화합니다.
ToolboxItem(Type)	지정된 구성 요소 형식을 만드는 ToolboxItem 클래스의 새 인스턴스를 초기화합니다.

예제

다음 코드 예제에서는 사용자 지정 도구 상자 항목 구현에 ToolboxItem 파생 된 클래스에서 ToolboxItem 생성자를 사용 하는 방법을 보여 줍니다. 이 코드 예제는에 대해 제공 된 큰 예제의 일부는 ToolboxItem 클래스입니다.

// Toolbox items must be serializable.
[Serializable]
class MyToolboxItem : ToolboxItem
{
    // The add components dialog in Visual Studio looks for a public
    // constructor that takes a type.
    public MyToolboxItem(Type toolType)
        : base(toolType)
    {
    }

    // And you must provide this special constructor for serialization.
    // If you add additional data to MyToolboxItem that you
    // want to serialize, you may override Deserialize and
    // Serialize methods to add that data.  
    MyToolboxItem(SerializationInfo info, StreamingContext context)
    {
        Deserialize(info, context);
    }

    // Let's override the creation code and pop up a dialog.
    protected override IComponent[] CreateComponentsCore(
        System.ComponentModel.Design.IDesignerHost host, 
        System.Collections.IDictionary defaultValues)
    {
        // Get the string we want to fill in the custom
        // user control.  If the user cancels out of the dialog,
        // return null or an empty array to signify that the 
        // tool creation was canceled.
        using (ToolboxItemDialog d = new ToolboxItemDialog())
        {
            if (d.ShowDialog() == DialogResult.OK)
            {
                string text = d.CreationText;

                IComponent[] comps =
                    base.CreateComponentsCore(host, defaultValues);
                // comps will have a single component: our data type.
                ((UserControl1)comps[0]).LabelText = text;
                return comps;
            }
            else
            {
                return null;
            }
        }
    }
}

<Serializable()> _
Class MyToolboxItem
    Inherits ToolboxItem

    ' The add components dialog in Visual Studio looks for a public
    ' constructor that takes a type.
    Public Sub New(ByVal toolType As Type)
        MyBase.New(toolType)
    End Sub


    ' And you must provide this special constructor for serialization.
    ' If you add additional data to MyToolboxItem that you
    ' want to serialize, you may override Deserialize and
    ' Serialize methods to add that data.  
    Sub New(ByVal info As SerializationInfo, _
        ByVal context As StreamingContext)
        Deserialize(info, context)
    End Sub


    ' Let's override the creation code and pop up a dialog.
    Protected Overrides Function CreateComponentsCore( _
        ByVal host As System.ComponentModel.Design.IDesignerHost, _
        ByVal defaultValues As System.Collections.IDictionary) _
        As IComponent()
        ' Get the string we want to fill in the custom
        ' user control.  If the user cancels out of the dialog,
        ' return null or an empty array to signify that the 
        ' tool creation was canceled.
        Using d As New ToolboxItemDialog()
            If d.ShowDialog() = DialogResult.OK Then
                Dim [text] As String = d.CreationText
                Dim comps As IComponent() = _
                    MyBase.CreateComponentsCore(host, defaultValues)
                ' comps will have a single component: our data type.
                CType(comps(0), UserControl1).LabelText = [text]
                Return comps
            Else
                Return Nothing
            End If
        End Using
    End Function
End Class

ToolboxItem()

ToolboxItem 클래스의 새 인스턴스를 초기화합니다.

public:
 ToolboxItem();

public ToolboxItem ();

Public Sub New ()

예제

// Toolbox items must be serializable.
[Serializable]
class MyToolboxItem : ToolboxItem
{
    // The add components dialog in Visual Studio looks for a public
    // constructor that takes a type.
    public MyToolboxItem(Type toolType)
        : base(toolType)
    {
    }

    // And you must provide this special constructor for serialization.
    // If you add additional data to MyToolboxItem that you
    // want to serialize, you may override Deserialize and
    // Serialize methods to add that data.  
    MyToolboxItem(SerializationInfo info, StreamingContext context)
    {
        Deserialize(info, context);
    }

    // Let's override the creation code and pop up a dialog.
    protected override IComponent[] CreateComponentsCore(
        System.ComponentModel.Design.IDesignerHost host, 
        System.Collections.IDictionary defaultValues)
    {
        // Get the string we want to fill in the custom
        // user control.  If the user cancels out of the dialog,
        // return null or an empty array to signify that the 
        // tool creation was canceled.
        using (ToolboxItemDialog d = new ToolboxItemDialog())
        {
            if (d.ShowDialog() == DialogResult.OK)
            {
                string text = d.CreationText;

                IComponent[] comps =
                    base.CreateComponentsCore(host, defaultValues);
                // comps will have a single component: our data type.
                ((UserControl1)comps[0]).LabelText = text;
                return comps;
            }
            else
            {
                return null;
            }
        }
    }
}

<Serializable()> _
Class MyToolboxItem
    Inherits ToolboxItem

    ' The add components dialog in Visual Studio looks for a public
    ' constructor that takes a type.
    Public Sub New(ByVal toolType As Type)
        MyBase.New(toolType)
    End Sub


    ' And you must provide this special constructor for serialization.
    ' If you add additional data to MyToolboxItem that you
    ' want to serialize, you may override Deserialize and
    ' Serialize methods to add that data.  
    Sub New(ByVal info As SerializationInfo, _
        ByVal context As StreamingContext)
        Deserialize(info, context)
    End Sub


    ' Let's override the creation code and pop up a dialog.
    Protected Overrides Function CreateComponentsCore( _
        ByVal host As System.ComponentModel.Design.IDesignerHost, _
        ByVal defaultValues As System.Collections.IDictionary) _
        As IComponent()
        ' Get the string we want to fill in the custom
        ' user control.  If the user cancels out of the dialog,
        ' return null or an empty array to signify that the 
        ' tool creation was canceled.
        Using d As New ToolboxItemDialog()
            If d.ShowDialog() = DialogResult.OK Then
                Dim [text] As String = d.CreationText
                Dim comps As IComponent() = _
                    MyBase.CreateComponentsCore(host, defaultValues)
                ' comps will have a single component: our data type.
                CType(comps(0), UserControl1).LabelText = [text]
                Return comps
            Else
                Return Nothing
            End If
        End Using
    End Function
End Class

적용 대상

ToolboxItem(Type)

지정된 구성 요소 형식을 만드는 ToolboxItem 클래스의 새 인스턴스를 초기화합니다.

public:
 ToolboxItem(Type ^ toolType);

public ToolboxItem (Type toolType);

public ToolboxItem (Type? toolType);

new System.Drawing.Design.ToolboxItem : Type -> System.Drawing.Design.ToolboxItem

Public Sub New (toolType As Type)

매개 변수

toolType: Type

도구 상자 항목에서 만드는 IComponent 형식입니다.

예외

InvalidOperationException

ToolboxItem이 잠긴 경우

예제

// Toolbox items must be serializable.
[Serializable]
class MyToolboxItem : ToolboxItem
{
    // The add components dialog in Visual Studio looks for a public
    // constructor that takes a type.
    public MyToolboxItem(Type toolType)
        : base(toolType)
    {
    }

    // And you must provide this special constructor for serialization.
    // If you add additional data to MyToolboxItem that you
    // want to serialize, you may override Deserialize and
    // Serialize methods to add that data.  
    MyToolboxItem(SerializationInfo info, StreamingContext context)
    {
        Deserialize(info, context);
    }

    // Let's override the creation code and pop up a dialog.
    protected override IComponent[] CreateComponentsCore(
        System.ComponentModel.Design.IDesignerHost host, 
        System.Collections.IDictionary defaultValues)
    {
        // Get the string we want to fill in the custom
        // user control.  If the user cancels out of the dialog,
        // return null or an empty array to signify that the 
        // tool creation was canceled.
        using (ToolboxItemDialog d = new ToolboxItemDialog())
        {
            if (d.ShowDialog() == DialogResult.OK)
            {
                string text = d.CreationText;

                IComponent[] comps =
                    base.CreateComponentsCore(host, defaultValues);
                // comps will have a single component: our data type.
                ((UserControl1)comps[0]).LabelText = text;
                return comps;
            }
            else
            {
                return null;
            }
        }
    }
}

<Serializable()> _
Class MyToolboxItem
    Inherits ToolboxItem

    ' The add components dialog in Visual Studio looks for a public
    ' constructor that takes a type.
    Public Sub New(ByVal toolType As Type)
        MyBase.New(toolType)
    End Sub


    ' And you must provide this special constructor for serialization.
    ' If you add additional data to MyToolboxItem that you
    ' want to serialize, you may override Deserialize and
    ' Serialize methods to add that data.  
    Sub New(ByVal info As SerializationInfo, _
        ByVal context As StreamingContext)
        Deserialize(info, context)
    End Sub


    ' Let's override the creation code and pop up a dialog.
    Protected Overrides Function CreateComponentsCore( _
        ByVal host As System.ComponentModel.Design.IDesignerHost, _
        ByVal defaultValues As System.Collections.IDictionary) _
        As IComponent()
        ' Get the string we want to fill in the custom
        ' user control.  If the user cancels out of the dialog,
        ' return null or an empty array to signify that the 
        ' tool creation was canceled.
        Using d As New ToolboxItemDialog()
            If d.ShowDialog() = DialogResult.OK Then
                Dim [text] As String = d.CreationText
                Dim comps As IComponent() = _
                    MyBase.CreateComponentsCore(host, defaultValues)
                ' comps will have a single component: our data type.
                CType(comps(0), UserControl1).LabelText = [text]
                Return comps
            Else
                Return Nothing
            End If
        End Using
    End Function
End Class

적용 대상

다음을 통해 공유

ToolboxItem 생성자

정의

오버로드

예제

ToolboxItem()

예제

적용 대상

ToolboxItem(Type)

매개 변수

예외

예제

적용 대상

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