TemplateContainerAttribute Конструкторы

Определение

Инициализирует новый экземпляр класса TemplateContainerAttribute.Initializes a new instance of the TemplateContainerAttribute class.

Перегрузки

TemplateContainerAttribute(Type)

Инициализирует новый экземпляр класса TemplateContainerAttribute, используя указанный тип контейнера.Initializes a new instance of the TemplateContainerAttribute class using the specified container type.

TemplateContainerAttribute(Type, BindingDirection)

Инициализирует класс TemplateContainerAttribute, используя указанный тип контейнера и свойство BindingDirection.Initializes a new instance of the TemplateContainerAttribute class using the specified container type and the BindingDirection property.

TemplateContainerAttribute(Type)

Инициализирует новый экземпляр класса TemplateContainerAttribute, используя указанный тип контейнера.Initializes a new instance of the TemplateContainerAttribute class using the specified container type.

public:
 TemplateContainerAttribute(Type ^ containerType);
public TemplateContainerAttribute (Type containerType);
new System.Web.UI.TemplateContainerAttribute : Type -> System.Web.UI.TemplateContainerAttribute
Public Sub New (containerType As Type)

Параметры

containerType
Type

Тип Type для контейнерного элемента управления.The Type for the container control.

Примеры

В следующем примере кода показано, как создать шаблонный элемент управления с TemplatedFirstControl именем и связать его с контейнером FirstTemplateContainerс именем.The following code example shows how to create a templated control named TemplatedFirstControl and associate it with a container named FirstTemplateContainer. Это позволяет создавать пользовательские элементы управления, отображающие время сервера, когда шаблон не указан, и содержимое шаблона при указании шаблона.This allows the creation of custom controls that display the server time when the template is not specified and the template's content when the template is specified. TemplateContainerAttribute Класс используетсяFirstTemplate для свойства.The TemplateContainerAttribute class is used for the FirstTemplate property.

using System;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Collections;

namespace Samples.AspNet.CS.Controls
{
    [ParseChildren(true)]
    public class TemplatedFirstControl : Control, INamingContainer
    {
        private ITemplate firstTemplate;
        private String text = null;
        private Control myTemplateContainer;

        [System.Security.Permissions.PermissionSet(System.Security.Permissions.SecurityAction.Demand, Name = "FullTrust")]
        protected override void OnDataBinding(EventArgs e)
        {
            EnsureChildControls();
            base.OnDataBinding(e);
        }

        [TemplateContainer(typeof(FirstTemplateContainer))]
        public ITemplate FirstTemplate
        {
            get
            {
                return firstTemplate;
            }
            set
            {
                firstTemplate = value;
            }
        }

        public String Text
        {
            get
            {
                return text;
            }
            set
            {
                text = value;
            }
        }

        public String DateTime
        {
            get
            {
                return System.DateTime.Now.ToLongTimeString();
            }
        }

        public Control MyTemplateContainer
        {
            get
            {
                return myTemplateContainer;
            }
        }

        [System.Security.Permissions.PermissionSet(System.Security.Permissions.SecurityAction.Demand, Name = "FullTrust")]
        protected override void CreateChildControls()
        {
            if (FirstTemplate != null)
            {
                myTemplateContainer = new FirstTemplateContainer(this);
                FirstTemplate.InstantiateIn(myTemplateContainer);
                Controls.Add(myTemplateContainer);
            }
            else
            {
                Controls.Add(new LiteralControl(Text + " " + DateTime));
            }
        }
    }

    public class FirstTemplateContainer : Control, INamingContainer
    {
      private TemplatedFirstControl parent;
      public FirstTemplateContainer(TemplatedFirstControl parent)
      {
        this.parent = parent;
      }
            
      public String Text
      {
        get
        {
          return parent.Text;
        }
      }
     
      public String DateTime
      {
        get 
        {
          return parent.DateTime;
        }
      }
    }
  }

' File name:templatecontainerattribute.vb.

Imports System.Web
Imports System.Web.UI
Imports System.Web.UI.WebControls
Imports System.Collections


Namespace Samples.AspNet.VB.Controls
    <ParseChildren(True)> _
    Public Class VB_TemplatedFirstControl
        Inherits Control
        Implements INamingContainer

        Private _firstTemplate As ITemplate
        Private [_text] As [String] = Nothing
        Private _myTemplateContainer As Control

        <System.Security.Permissions.PermissionSetAttribute(System.Security.Permissions.SecurityAction.Demand, Name:="FullTrust")> _
        Protected Overrides Sub OnDataBinding(ByVal e As EventArgs)
            EnsureChildControls()
            MyBase.OnDataBinding(e)
        End Sub


        Public Property FirstTemplate() As ITemplate
            Get
                Return _firstTemplate
            End Get

            Set(ByVal value As ITemplate)
                _firstTemplate = Value
            End Set
        End Property

        Public Property [Text]() As [String]
            Get
                Return [_text]
            End Get

            Set(ByVal value As [String])
                [_text] = Value
            End Set
        End Property

        Public ReadOnly Property DateTime() As [String]
            Get
                Return System.DateTime.Now.ToLongTimeString()
            End Get
        End Property

        Public ReadOnly Property MyTemplateContainer() As Control
            Get
                Return _myTemplateContainer
            End Get
        End Property

        <System.Security.Permissions.PermissionSetAttribute(System.Security.Permissions.SecurityAction.Demand, Name:="FullTrust")> _
        Protected Overrides Sub CreateChildControls()

            If Not (FirstTemplate Is Nothing) Then
                _myTemplateContainer = New VB_FirstTemplateContainer(Me)
                FirstTemplate.InstantiateIn(_myTemplateContainer)
                Controls.Add(_myTemplateContainer)
            Else
                Controls.Add(New LiteralControl([Text] + " " + DateTime))
            End If
        End Sub

    End Class


    Public Class VB_FirstTemplateContainer
        Inherits Control
        Implements INamingContainer

        Private _parent As VB_TemplatedFirstControl

        Public Sub New(ByVal parent As VB_TemplatedFirstControl)
            Me._parent = parent
        End Sub

        Public ReadOnly Property [Text]() As [String]
            Get
                Return _parent.Text
            End Get
        End Property

        Public ReadOnly Property DateTime() As [String]
            Get
                Return _parent.DateTime
            End Get
        End Property

    End Class

End Namespace 'CustomControls

Дополнительно

TemplateContainerAttribute(Type, BindingDirection)

Инициализирует класс TemplateContainerAttribute, используя указанный тип контейнера и свойство BindingDirection.Initializes a new instance of the TemplateContainerAttribute class using the specified container type and the BindingDirection property.

public:
 TemplateContainerAttribute(Type ^ containerType, System::ComponentModel::BindingDirection bindingDirection);
public TemplateContainerAttribute (Type containerType, System.ComponentModel.BindingDirection bindingDirection);
new System.Web.UI.TemplateContainerAttribute : Type * System.ComponentModel.BindingDirection -> System.Web.UI.TemplateContainerAttribute

Параметры

containerType
Type

Тип Type для контейнерного элемента управления.The Type for the container control.

bindingDirection
BindingDirection

Тип BindingDirection для контейнерного элемента управления.The BindingDirection for the container control.

Дополнительно

Применяется к