DataSourceDesigner 类

定义

在设计主机中为 DataSourceControl 类提供设计时支持。

public ref class DataSourceDesigner : System::Web::UI::Design::ControlDesigner, System::Web::UI::Design::IDataSourceDesigner
public class DataSourceDesigner : System.Web.UI.Design.ControlDesigner, System.Web.UI.Design.IDataSourceDesigner
type DataSourceDesigner = class
    inherit ControlDesigner
    interface IDataSourceDesigner
Public Class DataSourceDesigner
Inherits ControlDesigner
Implements IDataSourceDesigner
继承
派生
实现

示例

下面的代码示例演示如何将自定义数据源控件与其他几个小型自定义类配合使用,如下表所示。

自定义类 派生
CustomDataSource ObjectDataSource
CustomDataSourceDesigner DataSourceDesigner
CustomDataSourceView ObjectDataSourceView
CustomDesignDataSourceView DesignerDataSourceView
BookListViewSchema IDataSourceViewSchema
CustomIDFieldSchema IDataSourceFieldSchema
CustomTitleFieldSchema IDataSourceFieldSchema
BookItem (双字段数据结构。)

编译代码示例后,在“设计”视图中打开“.aspx”页, DataSourceID 然后将 属性设置为自定义数据源控件的 ID。

using System;
using System.Data;
using System.Security.Permissions;
using System.Collections;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.Design;
using System.Web.UI.Design.WebControls;
using System.ComponentModel;
using System.ComponentModel.Design;

namespace ASPNet.Design.Samples_CS
{
    [Designer(typeof(CustomDataSourceDesigner)),
        ToolboxData("<{0}:CustomDataSource runat=\"server\"></{0}:CustomDataSource>")]
    public class CustomDataSource : ObjectDataSource
    {
        private ObjectDataSourceView _view = null;
        private string _defaultViewName = "BookList";

        public CustomDataSource() : base() { }

        // Gets a view by name
        protected override DataSourceView GetView(string viewName)
        {
            // This data source only allows one view
            if (viewName != _defaultViewName)
            {
                return null;
            }
            else if (_view == null)
            {
                _view = new CustomDataSourceView(this, 
                    _defaultViewName, HttpContext.Current);
            }

            return _view;
        }

        // Gets a list of view names for this class
        protected override ICollection GetViewNames()
        {
            ArrayList ar = new ArrayList(1);
            ar.Add(_defaultViewName);
            return ar as ICollection;
        }
    }

    // The runtime data source view
    public class CustomDataSourceView : ObjectDataSourceView
    {
        private ArrayList _data = null;

        public CustomDataSourceView(CustomDataSource owner, 
            string viewName, HttpContext context)
            : base(owner, viewName, context)
        {
            owner.SelectCountMethod = "GetCount";
        }

        // This method would typically get a set of live data  
        // rather than create some dummy data
        protected override IEnumerable ExecuteSelect(
            DataSourceSelectArguments arguments)
        {
            if (_data == null)
            {
                // Create a set of runtime fake data
                _data = new ArrayList();
                _data.Add(new BookItem("ID_1", "Runtime Title 01"));
                _data.Add(new BookItem("ID_2", "Runtime Title 02"));
                _data.Add(new BookItem("ID_3", "Runtime Title 03"));
            }

            return _data as IEnumerable;
        }

        // Allow getting the record count
        public override bool CanRetrieveTotalRowCount
        {
            get { return true; }
        }

        // Returns the number of records in the current set of data
        public int GetCount()
        {
            if (_data == null)
                return 0;
            else
                return _data.Count;
        }
        
        // Do not allow deletions
        public override bool CanDelete
        {
            get { return false; }
        }
        // Do not allow insertions
        public override bool CanInsert
        {
            get { return false; }
        }
        // Do not allow paging
        public override bool CanPage
        {
            get { return false; }
        }
        // Do not allow sorting
        public override bool CanSort
        {
            get { return false; }
        }
        // Do not allow updating
        public override bool CanUpdate
        {
            get { return false; }
        }
    }

    // A class to define each record of the data
    public class BookItem
    {
        private string _id;
        private string _title;

        public BookItem(string id, string title)
        {
            _id = id;
            _title = title;
        }

        public string ID
        {
            get { return _id; }
        }
        public string Title
        {
            get { return _title; }
            set { _title = value; }
        }
    }

    // Custom designer for the CustomDataSource control.
    public class CustomDataSourceDesigner : DataSourceDesigner
    {
        private CustomDataSource _control;
        private string _defaultViewName = "BookList";
        private CustomDesignDataSourceView _view = null;

        // Initialize the designer
        public override void Initialize(IComponent component)
        {
            base.Initialize(component);
            _control = (CustomDataSource)Component;
        }

        // Get a view
        public override DesignerDataSourceView GetView(string viewName)
        {
            if (!viewName.Equals(_defaultViewName))
                return null;

            _view ??= new CustomDesignDataSourceView(this,
                _defaultViewName);

            return _view;
        }

        // Get a list of view names
        public override string[] GetViewNames()
        {
            return new string[] { "BookList" };
        }

        // Do not allow refreshing the schema
        public override bool CanRefreshSchema
        {
            get { return false; }
        }
        // Do not allow resizing
        public override bool AllowResize
        {
            get { return false; }
        }
    }

    // A design-time data source view
    public class CustomDesignDataSourceView : DesignerDataSourceView
    {
        private ArrayList _data = null;

        public CustomDesignDataSourceView(
            CustomDataSourceDesigner owner, string viewName)
            : base(owner, viewName)
        {}

        // Get data for design-time display
        public override IEnumerable GetDesignTimeData(
            int minimumRows, out bool isSampleData)
        {
            if (_data == null)
            {
                // Create a set of design-time fake data
                _data = new ArrayList();
                for (int i = 1; i <= minimumRows; i++)
                {
                    _data.Add(new BookItem("ID_" + i.ToString(),
                        "Design-Time Title 0" + i.ToString()));
                }
            }
            isSampleData = true;
            return _data as IEnumerable;
        }

        public override IDataSourceViewSchema Schema
        {
            get { return new BookListViewSchema(); }
        }

        // Allow getting the record count
        public override bool CanRetrieveTotalRowCount
        {
            get { return true; }
        }
        // Do not allow deletions
        public override bool CanDelete
        {
            get { return false; }
        }
        // Do not allow insertions
        public override bool CanInsert
        {
            get { return false; }
        }
        // Do not allow updates
        public override bool CanUpdate
        {
            get { return false; }
        }
        // Do not allow paging
        public override bool CanPage
        {
            get { return false; }
        }
        // Do not allow sorting
        public override bool CanSort
        {
            get { return false; }
        }
    }

    // A custom View Schema class
    public class BookListViewSchema : IDataSourceViewSchema
    {
        public BookListViewSchema()
        { }

        // The name of this View Schema
        public string Name
        {
            get { return "BookList"; }
        }

        // Build a Field Schema array
        public IDataSourceFieldSchema[] GetFields()
        {
            IDataSourceFieldSchema[] fields = new IDataSourceFieldSchema[2];
            fields[0] = new CustomIDFieldSchema();
            fields[1] = new CustomTitleFieldSchema();
            return fields;
        }
        // There are no child views, so return null
        public IDataSourceViewSchema[] GetChildren()
        {
            return null;
        }
    }

    // A custom Field Schema class for ID
    public class CustomIDFieldSchema : IDataSourceFieldSchema
    {
        public CustomIDFieldSchema()
        { }

        // Name is ID
        public string Name
        {
            get { return "ID"; }
        }
        // Data type is string
        public Type DataType
        {
            get { return typeof(string); }
        }
        // This is not an Identity field
        public bool Identity
        {
            get { return false; }
        }
        // This field is read only
        public bool IsReadOnly
        {
            get { return true; }
        }
        // This field is unique
        public bool IsUnique
        {
            get { return true; }
        }
        // This field can't be longer than 20
        public int Length
        {
            get { return 20; }
        }
        // This field can't be null
        public bool Nullable
        {
            get { return false; }
        }
        // This is a Primary Key
        public bool PrimaryKey
        {
            get { return true; }
        }

        // These properties do not apply
        public int Precision
        {
            get { return -1; }
        }
        public int Scale
        {
            get { return -1; }
        }
    }
    
    // A custom Field Schema class for Title
    public class CustomTitleFieldSchema : IDataSourceFieldSchema
    {
        public CustomTitleFieldSchema()
        { }

        // Name is Title
        public string Name
        {
            get { return "Title"; }
        }
        // Type is string
        public Type DataType
        {
            get { return typeof(string); }
        }
        // This is not an Identity field
        public bool Identity
        {
            get { return false; }
        }
        // This field is not read only
        public bool IsReadOnly
        {
            get { return false; }
        }
        // This field is not unique
        public bool IsUnique
        {
            get { return false; }
        }
        // This field can't be longer than 100
        public int Length
        {
            get { return 100; }
        }
        // This field can't be null
        public bool Nullable
        {
            get { return false; }
        }
        // This is not the Primary Key
        public bool PrimaryKey
        {
            get { return false; }
        }

        // These properties do not apply
        public int Precision
        {
            get { return -1; }
        }
        public int Scale
        {
            get { return -1; }
        }
    }
}
Imports System.Data
Imports System.Security.Permissions
Imports System.Collections
Imports System.Web
Imports System.Web.UI
Imports System.Web.UI.WebControls
Imports System.Web.UI.Design
Imports System.Web.UI.Design.WebControls
Imports System.ComponentModel
Imports System.ComponentModel.Design

Namespace ASPNet.Design.Samples_VB
    <Designer(GetType(CustomDataSourceDesigner)), _
        ToolboxData("<{0}:CustomDataSource runat=""server""></{0}:CustomDataSource>")> _
    Public Class CustomDataSource
        Inherits ObjectDataSource

        Dim _defaultViewName As String = "BookList"
        Dim _view As ObjectDataSourceView = Nothing

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

        ' Gets a view by name
        Protected Overrides Function GetView(ByVal viewName As String) As DataSourceView
            ' This data source only allows one view
            If Not (viewName.Equals(_defaultViewName)) Then
                Return Nothing
            ElseIf IsNothing(_view) Then
                _view = New CustomDataSourceView(Me, _
                    _defaultViewName, HttpContext.Current)
            End If

            Return _view
        End Function

        ' Gets a list of view names for this class
        Protected Overrides Function GetViewNames() As ICollection
            Dim ar As New ArrayList()
            ar.Add(_defaultViewName)
            Return CType(ar, ICollection)
        End Function

    End Class

    ' The runtime data source view
    Public Class CustomDataSourceView
        Inherits ObjectDataSourceView

        Dim _data As ArrayList = Nothing

        Public Sub New(ByVal owner As CustomDataSource, ByVal viewName As String, ByVal context As HttpContext)
            MyBase.New(owner, viewName, context)
            owner.SelectCountMethod = "GetCount"
        End Sub

        ' This method would typically get a set of live data
        ' rather than create some dummy data
        Protected Overrides Function ExecuteSelect(ByVal arguments As DataSourceSelectArguments) As System.Collections.IEnumerable
            If (IsNothing(_data)) Then
                _data = New ArrayList()
                _data.Add(New BookItem("ID_1", "Runtime Title 01"))
                _data.Add(New BookItem("ID_2", "Runtime Title 02"))
                _data.Add(New BookItem("ID_3", "Runtime Title 03"))
            End If
            Return CType(_data, IEnumerable)
        End Function

        ' Allow getting the record count
        Public Overrides ReadOnly Property CanRetrieveTotalRowCount() As Boolean
            Get
                Return True
            End Get
        End Property

        ' Returns the number of records in the current set of data
        Public ReadOnly Property GetCount() As Integer
            Get
                If IsNothing(_data) Then
                    Return 0
                Else
                    Return _data.Count
                End If
            End Get
        End Property
        ' Do not allow deletions
        Public Overrides ReadOnly Property CanDelete() As Boolean
            Get
                Return False
            End Get
        End Property
        ' Do not allow insertions
        Public Overrides ReadOnly Property CanInsert() As Boolean
            Get
                Return False
            End Get
        End Property
        ' Do not allow paging
        Public Overrides ReadOnly Property CanPage() As Boolean
            Get
                Return False
            End Get
        End Property
        ' Do not allow sorting
        Public Overrides ReadOnly Property CanSort() As Boolean
            Get
                Return False
            End Get
        End Property
        ' Do not allow updating
        Public Overrides ReadOnly Property CanUpdate() As Boolean
            Get
                Return False
            End Get
        End Property

    End Class

    ' A class to define a record of the data
    Public Class BookItem
        Private _id As String
        Private _title As String

        Public Sub New(ByVal id As String, ByVal title As String)
            _id = id
            _title = title
        End Sub

        Public ReadOnly Property ID() As String
            Get
                Return _id
            End Get
        End Property

        Public Property Title() As String
            Get
                Return _title
            End Get
            Set(ByVal value As String)
                _title = value
            End Set
        End Property
    End Class

    ' Custom designer for the CustomDataSource control.
    Public Class CustomDataSourceDesigner
        Inherits DataSourceDesigner

        Private _control As CustomDataSource = Nothing
        Private _defaultViewName As String = "BookList"
        Private _view As CustomDesignDataSourceView = Nothing

        Public Overrides Sub Initialize(ByVal cmponent As IComponent)
            MyBase.Initialize(cmponent)
            _control = CType(cmponent, CustomDataSource)
        End Sub

        ' Get a view
        Public Overrides Function GetView(ByVal viewName As String) As DesignerDataSourceView
            If Not (viewName.Equals(_defaultViewName)) Then
                Return Nothing
            ElseIf IsNothing(_view) Then
                _view = New CustomDesignDataSourceView(Me, _
                    _defaultViewName)
            End If

            Return _view
        End Function

        ' Get a list of view names
        Public Overrides Function GetViewNames() As String()
            Return New String() {"BookList"}
        End Function

        ' Don't allow refreshing the schema
        Public Overrides ReadOnly Property CanRefreshSchema() As Boolean
            Get
                Return False
            End Get
        End Property
        ' Do not allow resizing
        Public Overrides ReadOnly Property AllowResize() As Boolean
            Get
                Return False
            End Get
        End Property
    End Class

    ' A     design-time data source view
    Public Class CustomDesignDataSourceView
        Inherits DesignerDataSourceView

        Private _data As ArrayList = Nothing

        Public Sub New(ByVal owner As CustomDataSourceDesigner, ByVal viewName As String)
            MyBase.New(owner, viewName)
        End Sub

        ' Get data for design-time display
        Public Overrides Function GetDesignTimeData( _
            ByVal minimumRows As Integer, _
            ByRef isSampleData As Boolean) As IEnumerable

            If IsNothing(_data) Then
                ' Create a set of design-time fake data
                _data = New ArrayList()
                Dim i As Integer
                For i = 1 To minimumRows
                    _data.Add(New BookItem("ID_" & i.ToString(), _
                        "Design-Time Title 0" & i.ToString()))
                Next
            End If
            isSampleData = True
            Return CType(_data, IEnumerable)
        End Function

        Public Overrides ReadOnly Property Schema() As IDataSourceViewSchema
            Get
                Return New BookListViewSchema()
            End Get
        End Property

        ' Allow getting the record count
        Public Overrides ReadOnly Property CanRetrieveTotalRowCount() As Boolean
            Get
                Return True
            End Get
        End Property
        ' Do not allow deletions
        Public Overrides ReadOnly Property CanDelete() As Boolean
            Get
                Return False
            End Get
        End Property
        ' Do not allow insertions
        Public Overrides ReadOnly Property CanInsert() As Boolean
            Get
                Return False
            End Get
        End Property
        ' Do not allow updates
        Public Overrides ReadOnly Property CanUpdate() As Boolean
            Get
                Return False
            End Get
        End Property
        ' Do not allow paging
        Public Overrides ReadOnly Property CanPage() As Boolean
            Get
                Return False
            End Get
        End Property
        ' Do not allow sorting
        Public Overrides ReadOnly Property CanSort() As Boolean
            Get
                Return False
            End Get
        End Property
    End Class

    ' A custom View Schema class
    Public Class BookListViewSchema
        Implements IDataSourceViewSchema

        Public Sub New()
        End Sub

        ' The name of this View Schema
        Public ReadOnly Property Name() As String Implements IDataSourceViewSchema.Name
            Get
                Return "BookList"
            End Get
        End Property

        ' Build a Field Schema array
        Public Function GetFields() As IDataSourceFieldSchema() Implements IDataSourceViewSchema.GetFields
            Dim fields(1) As IDataSourceFieldSchema
            fields(0) = New CustomIDFieldSchema()
            fields(1) = New CustomTitleFieldSchema()
            Return fields
        End Function
        ' There are no child views, so return Nothing
        Public Function GetChildren() As IDataSourceViewSchema() Implements IDataSourceViewSchema.GetChildren
            Return Nothing
        End Function
    End Class

    ' A custom Field Schema class for ID
    Public Class CustomIDFieldSchema
        Implements IDataSourceFieldSchema

        Public Sub New()
        End Sub

        ' Name is ID
        Public ReadOnly Property Name() As String Implements IDataSourceFieldSchema.Name
            Get
                Return "ID"
            End Get
        End Property
        ' Data type is string
        Public ReadOnly Property DataType() As Type Implements IDataSourceFieldSchema.DataType
            Get
                Return GetType(String)
            End Get
        End Property
        ' This is not an Identity field
        Public ReadOnly Property Identity() As Boolean Implements IDataSourceFieldSchema.Identity
            Get
                Return False
            End Get
        End Property
        ' This field is read only
        Public ReadOnly Property IsReadOnly() As Boolean Implements IDataSourceFieldSchema.IsReadOnly
            Get
                Return True
            End Get
        End Property
        ' This field is unique
        Public ReadOnly Property IsUnique() As Boolean Implements IDataSourceFieldSchema.IsUnique
            Get
                Return True
            End Get
        End Property
        ' This field can't be longer than 20
        Public ReadOnly Property Length() As Integer Implements IDataSourceFieldSchema.Length
            Get
                Return 20
            End Get
        End Property
        ' This field can't be null
        Public ReadOnly Property Nullable() As Boolean Implements IDataSourceFieldSchema.Nullable
            Get
                Return False
            End Get
        End Property
        ' This is a Primary Key
        Public ReadOnly Property PrimaryKey() As Boolean Implements IDataSourceFieldSchema.PrimaryKey
            Get
                Return True
            End Get
        End Property

        ' These properties do not apply
        Public ReadOnly Property Precision() As Integer Implements IDataSourceFieldSchema.Precision
            Get
                Return -1
            End Get
        End Property
        Public ReadOnly Property Scale() As Integer Implements IDataSourceFieldSchema.Scale
            Get
                Return -1
            End Get
        End Property
    End Class

    ' A custom Field Schema class for Title
    Public Class CustomTitleFieldSchema
        Implements IDataSourceFieldSchema

        Public Sub New()
        End Sub

        ' Name is Title
        Public ReadOnly Property Name() As String Implements IDataSourceFieldSchema.Name
            Get
                Return "Title"
            End Get
        End Property
        ' Type is string
        Public ReadOnly Property DataType() As Type Implements IDataSourceFieldSchema.DataType
            Get
                Return GetType(String)
            End Get
        End Property
        ' This is not an Identity field
        Public ReadOnly Property Identity() As Boolean Implements IDataSourceFieldSchema.Identity
            Get
                Return False
            End Get
        End Property
        ' This field is not read only
        Public ReadOnly Property IsReadOnly() As Boolean Implements IDataSourceFieldSchema.IsReadOnly
            Get
                Return False
            End Get
        End Property
        ' This field is not unique
        Public ReadOnly Property IsUnique() As Boolean Implements IDataSourceFieldSchema.IsUnique
            Get
                Return False
            End Get
        End Property
        ' This field can't be longer than 100
        Public ReadOnly Property Length() As Integer Implements IDataSourceFieldSchema.Length
            Get
                Return 100
            End Get
        End Property
        ' This field can't be null
        Public ReadOnly Property Nullable() As Boolean Implements IDataSourceFieldSchema.Nullable
            Get
                Return False
            End Get
        End Property
        ' This is not the Primary Key
        Public ReadOnly Property PrimaryKey() As Boolean Implements IDataSourceFieldSchema.PrimaryKey
            Get
                Return False
            End Get
        End Property

        ' These properties do not apply
        Public ReadOnly Property Precision() As Integer Implements IDataSourceFieldSchema.Precision
            Get
                Return -1
            End Get
        End Property
        Public ReadOnly Property Scale() As Integer Implements IDataSourceFieldSchema.Scale
            Get
                Return -1
            End Get
        End Property
    End Class

End Namespace
<%@ Page Language="C#" %>
<%@ Register TagPrefix="aspSample" Namespace="ASPNet.Design.Samples_CS" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    
    <aspSample:CustomDataSource ID="CustomDS1" 
        runat="server"></aspSample:CustomDataSource>
    <asp:GridView ID="GridView1" runat="server"></asp:GridView>
    
    </div>
    </form>
</body>
</html>
<%@ Page Language="VB" %>
<%@ Register TagPrefix="aspSample" 
    Namespace="ASPNet.Design.Samples_VB" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    
    <aspSample:CustomDataSource runat="server" 
        ID="CustomDS1"></aspSample:CustomDataSource>
    <asp:GridView ID="GridView1" runat="server"></asp:GridView>
    
    </div>
    </form>
</body>
</html>

注解

DataSourceDesigner 是数据源设计器的基类,例如 SqlDataSourceDesignerAccessDataSourceDesignerObjectDataSourceDesigner 类。 如果创建新的数据源控件,可能还需要为控件创建自定义控件设计器,并从 类派生它 DataSourceDesigner

DataSourceDesigner 有两个事件方法: OnDataSourceChangedOnSchemaRefreshed 方法。 这两个事件都可以使用 SuppressDataSourceEvents 设置 SuppressingDataSourceEvents 属性的 方法暂时禁用。 可以使用 方法再次 ResumeDataSourceEvents 启用事件方法。

有两种静态方法可用于评估架构或视图的等效性,而无需创建 类的实例:

继承者说明

若要在设计时为派生类中的操作列表菜单提供命令,必须重写 ActionLists 属性以返回具有派生自 对象的自定义项的DesignerActionList自定义DesignerActionListCollection对象。

构造函数

DataSourceDesigner()

初始化 DataSourceDesigner 类的新实例。

属性

ActionLists

获取项的列表,其中的项用来在设计时创建操作列表菜单。

AllowResize

获取一个值,该值指示是否可以在设计时环境中调整控件的大小。

(继承自 ControlDesigner)
AssociatedComponents

获取与设计器所管理的组件关联的组件集合。

(继承自 ComponentDesigner)
AutoFormats

获取预定义自动格式设置方案的集合,这些方案将在设计时显示于关联控件的“自动套用格式”对话框中。

(继承自 ControlDesigner)
Behavior
已过时.

获取或设置与设计器关联的 DHTML 行为。

(继承自 HtmlControlDesigner)
CanConfigure

获取一个值,该值指示是否可以调用 Configure() 方法。

CanRefreshSchema

获取一个值,该值指示是否可以调用 RefreshSchema(Boolean) 方法。

Component

获取此设计器正在设计的组件。

(继承自 ComponentDesigner)
DataBindings

获取当前控件的数据绑定集合。

(继承自 HtmlControlDesigner)
DataBindingsEnabled

获取一个值,该值指示包含关联控件的区域是否支持数据绑定。

(继承自 ControlDesigner)
DesignerState

获取用于在设计时保持关联控件数据的对象。

(继承自 ControlDesigner)
DesignTimeElement
已过时.

获取一个设计时对象,该对象表示与设计图面上的 HtmlControlDesigner 对象关联的控件。

(继承自 HtmlControlDesigner)
DesignTimeElementView
已过时.

获取控件设计器的视图控件对象。

(继承自 ControlDesigner)
DesignTimeHtmlRequiresLoadComplete
已过时.

获取一个值,该值指示是否必须在设计宿主完成加载之后才能调用 GetDesignTimeHtml 方法。

(继承自 ControlDesigner)
Expressions

获取当前控件在设计时的表达式绑定。

(继承自 HtmlControlDesigner)
HidePropertiesInTemplateMode

获取一个值,该值指示当控件处于模板模式时,关联控件的属性是否被隐藏。

(继承自 ControlDesigner)
ID

获取或设置控件的 ID 字符串。

(继承自 ControlDesigner)
InheritanceAttribute

获取一个特性,该特性指示关联组件的继承类型。

(继承自 ComponentDesigner)
Inherited

获取一个值,该值指示是否继承此组件。

(继承自 ComponentDesigner)
InTemplateMode

获取一个值,该值指示控件在设计宿主中是否处于模板查看模式或模板编辑模式之一。 InTemplateMode 属性为只读。

(继承自 ControlDesigner)
IsDirty
已过时.

获取或设置一个值,该值指示 Web 服务器控件是否已被标记为已更改。

(继承自 ControlDesigner)
ParentComponent

获取此设计器的父组件。

(继承自 ComponentDesigner)
ReadOnly
已过时.

获取或设置一个值,该值指示控件的属性在设计时是否为只读。

(继承自 ControlDesigner)
RootDesigner

获取包含关联控件的 Web 窗体页的控件设计器。

(继承自 ControlDesigner)
SetTextualDefaultProperty

在设计主机中为 DataSourceControl 类提供设计时支持。

(继承自 ComponentDesigner)
ShadowProperties

获取重写用户设置的属性值的集合。

(继承自 ComponentDesigner)
ShouldCodeSerialize
已过时.

获取或设置一个值,该值指示在序列化期间是否应为当前设计文档在代码隐藏文件中创建控件的字段声明。

(继承自 HtmlControlDesigner)
SuppressingDataSourceEvents

获取一个值,该值指示是否发生 DataSourceChanged 事件或 RefreshSchema(Boolean) 方法。

Tag

获取表示关联控件的 HTML 标记元素的对象。

(继承自 ControlDesigner)
TemplateGroups

获取一个模板组集合,其中每个模板组包含一个或多个模板定义。

(继承自 ControlDesigner)
UsePreviewControl

获取一个值,该值指示控件设计器是否使用临时预览控件来生成设计时 HTML 标记。

(继承自 ControlDesigner)
Verbs

获取与设计器相关联的组件所支持的设计时谓词。

(继承自 ComponentDesigner)
ViewControl

获取或设置可用于预览设计时 HTML 标记的 Web 服务器控件。

(继承自 ControlDesigner)
ViewControlCreated

获取或设置一个值,该值指示是否已创建 View 控件以在设计图面上显示。

(继承自 ControlDesigner)
Visible

获取指示该控件在设计时是否可见的值。

(继承自 ControlDesigner)

方法

Configure()

启动设计宿主中的数据源配置实用工具。

CreateErrorDesignTimeHtml(String)

创建在设计时显示指定错误消息的 HTML 标记。

(继承自 ControlDesigner)
CreateErrorDesignTimeHtml(String, Exception)

创建在设计时显示指定异常错误消息的 HTML 标记。

(继承自 ControlDesigner)
CreatePlaceHolderDesignTimeHtml()

提供一个简单的矩形占位符表示形式,该表示形式显示该控件的类型和 ID。

(继承自 ControlDesigner)
CreatePlaceHolderDesignTimeHtml(String)

提供一个简单的矩形占位符表示形式,该表示形式显示该控件的类型和 ID 以及指定的附加说明或信息。

(继承自 ControlDesigner)
CreateViewControl()

返回要在设计图面上查看或呈现的关联控件的副本。

(继承自 ControlDesigner)
Dispose()

释放由 ComponentDesigner 使用的所有资源。

(继承自 ComponentDesigner)
Dispose(Boolean)

释放由 HtmlControlDesigner 对象占用的非托管资源,还可以选择释放托管资源。

(继承自 HtmlControlDesigner)
DoDefaultAction()

在源代码文件中为组件的默认事件创建方法签名,并将用户的光标定位到该位置。

(继承自 ComponentDesigner)
Equals(Object)

确定指定对象是否等于当前对象。

(继承自 Object)
GetBounds()

检索矩形的坐标,该矩形表示设计图面上显示的控件的边界。

(继承自 ControlDesigner)
GetDesignTimeHtml()

检索用于在设计时显示关联数据源控件的 HTML 标记。

GetDesignTimeHtml(DesignerRegionCollection)

检索用当前控件设计器区域显示控件并填充集合的 HTML 标记。

(继承自 ControlDesigner)
GetEditableDesignerRegionContent(EditableDesignerRegion)

返回关联控件设计时视图中可编辑区域的内容。

(继承自 ControlDesigner)
GetEmptyDesignTimeHtml()

检索表示在设计时将不具有可视表示形式的运行时 Web 服务器控件的 HTML 标记。

(继承自 ControlDesigner)
GetErrorDesignTimeHtml(Exception)

检索 HTML 标记,该标记提供有关指定异常的信息。

(继承自 ControlDesigner)
GetHashCode()

作为默认哈希函数。

(继承自 Object)
GetPersistenceContent()

在设计时检索该控件的持久内部 HTML 标记。

(继承自 ControlDesigner)
GetPersistInnerHtml()
已过时.

检索控件的持久性内部 HTML 标记。

(继承自 ControlDesigner)
GetService(Type)

尝试从设计器组件的设计模式站点检索指定类型的服务。

(继承自 ComponentDesigner)
GetType()

获取当前实例的 Type

(继承自 Object)
GetView(String)

检索由视图名称标识的 DesignerDataSourceView 对象。

GetViewNames()

返回此数据源中可用的视图名称的数组。

GetViewRendering()

检索一个对象,该对象包含关联控件的内容和区域的设计时标记。

(继承自 ControlDesigner)
Initialize(IComponent)

初始化控件设计器并加载指定的组件。

(继承自 ControlDesigner)
InitializeExistingComponent(IDictionary)

重新初始化现有组件。

(继承自 ComponentDesigner)
InitializeNewComponent(IDictionary)

初始化新创建的组件。

(继承自 ComponentDesigner)
InitializeNonDefault()
已过时.
已过时.

对已初始化为非默认设置的导入组件的设置进行初始化。

(继承自 ComponentDesigner)
Invalidate()

使显示在设计图面上的控件的整个区域无效,并向控件设计器发送重新绘制控件的信号。

(继承自 ControlDesigner)
Invalidate(Rectangle)

使显示在设计图面上的控件的指定区域无效,并向控件设计器发送重新绘制控件的信号。

(继承自 ControlDesigner)
InvokeGetInheritanceAttribute(ComponentDesigner)

获取指定 InheritanceAttributeComponentDesigner

(继承自 ComponentDesigner)
IsPropertyBound(String)
已过时.

检索一个值,该值指示关联控件上的指定属性是否是数据绑定的。

(继承自 ControlDesigner)
Localize(IDesignTimeResourceWriter)

使用提供的资源编写器将关联控件的可本地化属性保持到设计宿主中的某个资源。

(继承自 ControlDesigner)
MemberwiseClone()

创建当前 Object 的浅表副本。

(继承自 Object)
OnAutoFormatApplied(DesignerAutoFormat)

对关联控件应用预定义的自动格式设置方案后调用。

(继承自 ControlDesigner)
OnBehaviorAttached()

将控件设计器附加到 Behavior 对象时调用。

(继承自 ControlDesigner)
OnBehaviorDetaching()
已过时.

当某个行为与该元素取消关联时被调用。

(继承自 HtmlControlDesigner)
OnBindingsCollectionChanged(String)
已过时.

在数据绑定集合发生更改时调用。

(继承自 ControlDesigner)
OnClick(DesignerRegionMouseEventArgs)

当用户在设计时单击关联控件时由设计宿主调用。

(继承自 ControlDesigner)
OnComponentChanged(Object, ComponentChangedEventArgs)

在关联控件发生更改时调用。

(继承自 ControlDesigner)
OnComponentChanging(Object, ComponentChangingEventArgs)

表示将处理关联控件的 ComponentChanging 事件的方法。

(继承自 ControlDesigner)
OnControlResize()
已过时.

关联的 Web 服务器控件的大小在设计宿主中发生设计时调整后被调用。

(继承自 ControlDesigner)
OnDataSourceChanged(EventArgs)

当数据源的属性已更改且 DataSourceChanged 值为 false 时,引发 SuppressingDataSourceEvents 事件。

OnPaint(PaintEventArgs)

当控件设计器在设计图面上绘制关联控件,且 CustomPaint 的值为 true 时调用。

(继承自 ControlDesigner)
OnSchemaRefreshed(EventArgs)

当数据源的架构已更改且 SchemaRefreshed 值为 false 时,引发 SuppressingDataSourceEvents 事件。

OnSetComponentDefaults()
已过时.
已过时.

设置组件的默认属性。

(继承自 ComponentDesigner)
OnSetParent()

提供一种在将关联控件附加到父控件时执行附加处理的方式。

(继承自 HtmlControlDesigner)
PostFilterAttributes(IDictionary)

允许设计器从通过 TypeDescriptor 公开的特性集中更改或移除项。

(继承自 ComponentDesigner)
PostFilterEvents(IDictionary)

允许设计器从通过 TypeDescriptor 公开的事件集中更改或移除项。

(继承自 ComponentDesigner)
PostFilterProperties(IDictionary)

允许设计器从通过 TypeDescriptor 公开的属性集中更改或移除项。

(继承自 ComponentDesigner)
PreFilterAttributes(IDictionary)

允许设计器在通过 TypeDescriptor 公开的特性集中添加项。

(继承自 ComponentDesigner)
PreFilterEvents(IDictionary)

设置在设计时为用于组件的 TypeDescriptor 对象公开的事件列表。

(继承自 HtmlControlDesigner)
PreFilterProperties(IDictionary)

在设计时向设计宿主中的“属性”网格添加属性或从中移除属性,或提供可能与关联控件上的属性相对应的新设计时属性。

(继承自 ControlDesigner)
RaiseComponentChanged(MemberDescriptor, Object, Object)

通知 IComponentChangeService 此组件已被更改。

(继承自 ComponentDesigner)
RaiseComponentChanging(MemberDescriptor)

通知 IComponentChangeService 此组件即将被更改。

(继承自 ComponentDesigner)
RaiseResizeEvent()
已过时.

引发 OnControlResize() 事件。

(继承自 ControlDesigner)
RefreshSchema(Boolean)

在可以选择取消事件时从数据源刷新架构。

RegisterClone(Object, Object)

注册克隆控件中的内部数据。

(继承自 ControlDesigner)
ResumeDataSourceEvents()

在已取消数据源事件之后恢复数据源事件。

SchemasEquivalent(IDataSourceSchema, IDataSourceSchema)

提供一个值,该值指示两个架构是否相等。

SetEditableDesignerRegionContent(EditableDesignerRegion, String)

指定设计时控件可编辑区域的内容。

(继承自 ControlDesigner)
SetRegionContent(EditableDesignerRegion, String)

指定控件设计时视图中可编辑区域的内容。

(继承自 ControlDesigner)
SetViewFlags(ViewFlags, Boolean)

将指定的按位 ViewFlags 枚举分配给指定的标志值。

(继承自 ControlDesigner)
SuppressDataSourceEvents()

推迟所有数据源事件,直到 ResumeDataSourceEvents() 方法被调用为止。

ToString()

返回表示当前对象的字符串。

(继承自 Object)
UpdateDesignTimeHtml()

通过调用 GetDesignTimeHtml 方法刷新关联 Web 服务器控件的设计时 HTML 标记。

(继承自 ControlDesigner)
ViewSchemasEquivalent(IDataSourceViewSchema, IDataSourceViewSchema)

提供一个值,该值确定两个架构视图是否相等。

事件

DataSourceChanged

当关联数据源的任何属性发生更改时发生。

SchemaRefreshed

在架构刷新后发生。

显式接口实现

IDesignerFilter.PostFilterAttributes(IDictionary)

有关此成员的说明,请参见 PostFilterAttributes(IDictionary) 方法。

(继承自 ComponentDesigner)
IDesignerFilter.PostFilterEvents(IDictionary)

有关此成员的说明,请参见 PostFilterEvents(IDictionary) 方法。

(继承自 ComponentDesigner)
IDesignerFilter.PostFilterProperties(IDictionary)

有关此成员的说明,请参见 PostFilterProperties(IDictionary) 方法。

(继承自 ComponentDesigner)
IDesignerFilter.PreFilterAttributes(IDictionary)

有关此成员的说明,请参见 PreFilterAttributes(IDictionary) 方法。

(继承自 ComponentDesigner)
IDesignerFilter.PreFilterEvents(IDictionary)

有关此成员的说明,请参见 PreFilterEvents(IDictionary) 方法。

(继承自 ComponentDesigner)
IDesignerFilter.PreFilterProperties(IDictionary)

有关此成员的说明,请参见 PreFilterProperties(IDictionary) 方法。

(继承自 ComponentDesigner)
ITreeDesigner.Children

有关此成员的说明,请参见 Children 属性。

(继承自 ComponentDesigner)
ITreeDesigner.Parent

有关此成员的说明,请参见 Parent 属性。

(继承自 ComponentDesigner)

适用于

另请参阅