How To: Create ASP.NET Web Server Control Templates Dynamically

雨点打透心脏的1/2处 2021-11-11 13:40 144阅读 0赞

When working with templated controls, you might not know until run time what templates you need or what text or controls the template should contain. In that case, you can create the templates dynamically in code.

<table> 
 <tbody> 
  <tr> 
   <th align="left"><img alt="Note" src="http://msdn2.microsoft.com/en-us/library/0e39s2ck.note%28en-US,VS.80%29.gif">Note </th> 
  </tr> 
  <tr> 
   <td> <p>You can also create templates as user controls and bind them dynamically to controls on your page. For details, see <span><a href="http://msdn2.microsoft.com/en-us/library/36574bf6%28VS.80%29.aspx" rel="nofollow">How to: Create Templated ASP.NET User Controls</a></span>.</p> </td> 
  </tr> 
 </tbody> 
</table>

You can create templates in code for all controls that use templates: the [DataList][], [Repeater][], [GridView][], [FormView][], [DetailsView][], and others. For the **GridView** control, you use templates to define columns instead of the row layout templates as for the other controls.

<table> 
 <tbody> 
  <tr> 
   <th align="left"><img alt="Note" src="http://msdn2.microsoft.com/en-us/library/0e39s2ck.note%28en-US,VS.80%29.gif">Note </th> 
  </tr> 
  <tr> 
   <td> <p>There are a few differences when creating template columns for the <strong>GridView</strong> control as compared to other templated controls. For details, see <span><a href="http://msdn2.microsoft.com/en-us/library/ms228046%28VS.80%29.aspx" rel="nofollow">Creating a Custom Column in a GridView Web Server Control</a></span>.</p> </td> 
  </tr> 
 </tbody> 
</table>

![minus.gif][] Creating the Template Class

To create dynamic templates, you create a template class, which you then instantiate when needed.

### To create a template class ###

1.  Create a new class that implements the [System.Web.UI.ITemplate][] interface.
2.  Optionally, pass into the class's constructor a value that the class can use to determine what type of template to create (**ItemTemplate**, **AlternatingItemTemplate**, and so on).
    
    <table> 
     <tbody> 
      <tr> 
       <th align="left"><img alt="Note" src="http://msdn2.microsoft.com/en-us/library/0e39s2ck.note%28en-US,VS.80%29.gif">Note </th> 
      </tr> 
      <tr> 
       <td> <p>A type-safe way to pass the template type to the constructor is to add a parameter to the constructor with the type <span><a href="http://msdn2.microsoft.com/en-us/library/sz4ywbda%28VS.80%29.aspx" rel="nofollow">ListItemType</a></span>. The <strong>ListItemType</strong> enumeration defines the possible template types for the <strong>Repeater</strong>, <strong>DataList</strong>, and other list controls.</p> </td> 
      </tr> 
     </tbody> 
    </table>
3.  In the class, implement the [InstantiateIn][] method, which is the member of the **ITemplate** interface.
    
    This method provides a way to insert an instance of text and controls into the specified container.
4.  In the **InstantiateIn** method, create the controls for the template item, set their properties, and then add them to the parent's **Controls** collection.
    
    You can access the parent control via the reference passed to the **InstantiateIn** method.
    
    <table> 
     <tbody> 
      <tr> 
       <th align="left"><img alt="Note" src="http://msdn2.microsoft.com/en-us/library/0e39s2ck.note%28en-US,VS.80%29.gif">Note </th> 
      </tr> 
      <tr> 
       <td> <p>You cannot directly add static text to the <strong>Controls</strong> collection, but you can create controls like the <span><a href="http://msdn2.microsoft.com/en-us/library/f0aw4d5w%28VS.80%29.aspx" rel="nofollow">Literal</a></span> control or the <span><a href="http://msdn2.microsoft.com/en-us/library/50eewx9c%28VS.80%29.aspx" rel="nofollow">LiteralControl</a></span> control, set their <strong>Text</strong> properties, and then add those controls to the parent collection.</p> </td> 
      </tr> 
     </tbody> 
    </table>
5.  For controls that require data binding, create and bind a method to handle the control's [DataBinding][] event. This event is raised after the template item has been created with all its controls, and it provides you with an opportunity to fetch data and use it in a control.
    
    <table> 
     <tbody> 
      <tr> 
       <th align="left"><img alt="Note" src="http://msdn2.microsoft.com/en-us/library/0e39s2ck.note%28en-US,VS.80%29.gif">Note </th> 
      </tr> 
      <tr> 
       <td> <p>You cannot embed a data-binding expression as a string when creating controls in the template, as you do when defining templates at design time, because data-binding expressions are converted into code before your template is created.</p> </td> 
      </tr> 
     </tbody> 
    </table>
    
    In the handler for the **DataBinding** event, you have an opportunity to manipulate the contents of the control. Typically (but not necessarily), you fetch data from somewhere and assign it to the control's **Text** property (or other property).
    
    <table> 
     <tbody> 
      <tr> 
       <th align="left"><img alt="Note" src="http://msdn2.microsoft.com/en-us/library/0e39s2ck.note%28en-US,VS.80%29.gif">Note </th> 
      </tr> 
      <tr> 
       <td> <p>For information on data binding in ASP.NET Web pages, see <span><a href="http://msdn2.microsoft.com/en-us/library/6759sth4%28VS.80%29.aspx" rel="nofollow">Accessing Data with ASP.NET</a></span>.</p> </td> 
      </tr> 
     </tbody> 
    </table>
    
    To add data binding to a dynamic template, you must do the following:
    
     *  Add a data-binding event handler to the controls you create in the template.
     *  Create the handler that you are binding to. In the handler, get the data that you want to bind to and assign it to the appropriate property of the control being bound.
        
        <table> 
         <tbody> 
          <tr> 
           <th align="left"><img alt="Note" src="http://msdn2.microsoft.com/en-us/library/0e39s2ck.note%28en-US,VS.80%29.gif">Note </th> 
          </tr> 
          <tr> 
           <td> <p>If you have multiple types of controls in your templates, you need to create a different data-binding event handler for each control type.</p> </td> 
          </tr> 
         </tbody> 
        </table>
    
    The following code example illustrates a template class named MyTemplate that implements the **ITemplate** interface. The MyTemplate class defines a constructor that accepts a **ListItemType** enumeration value to indicate what type of template is being created. Depending on the template type, the code creates different types of controls and adds them to a [PlaceHolder][] control which is then added to the **Controls** collection of the parent control. For the **ListItemType** of [Item][] and [AlternatingItem][Item], an event handler named Item\_DataBinding is created.
    
    The rendered Web page results in an HTML table with a different background color for the alternating item template.
    
    Visual Basic
    
    ![copy_off.gif][] Copy Code
    
        Public Class MyTemplate
            Implements System.Web.UI.ITemplate
            Dim templateType As ListItemType
            Sub New(ByVal type As ListItemType)
            templateType = type
            End Sub
            Public Sub InstantiateIn(ByVal container As System.Web.UI.Control) _
            Implements System.Web.UI.ITemplate.InstantiateIn
            Dim ph As New PlaceHolder()
            Dim item1 As New Label()
            Dim item2 As New Label()
            item1.ID = "item1"
            item2.ID = "item2"
            Select Case (templateType)
            Case ListItemType.Header
            ph.Controls.Add(New LiteralControl("<table border=""1"">" & _
            "<tr><td><b>Category ID</b></td>" & _
            "<td><b>Category Name</b></td></tr>"))
            Case ListItemType.Item
            ph.Controls.Add(New LiteralControl("<tr><td>"))
            ph.Controls.Add(item1)
            ph.Controls.Add(New LiteralControl("</td><td>"))
            ph.Controls.Add(item2)
            ph.Controls.Add(New LiteralControl("</td></tr>"))
            AddHandler ph.DataBinding, New EventHandler(AddressOf Item_DataBinding)
            Case ListItemType.AlternatingItem
            ph.Controls.Add(New LiteralControl("<tr bgcolor=""lightblue""><td>"))
            ph.Controls.Add(item1)
            ph.Controls.Add(New LiteralControl("</td><td>"))
            ph.Controls.Add(item2)
            ph.Controls.Add(New LiteralControl("</td></tr>"))
            AddHandler ph.DataBinding, New EventHandler(AddressOf Item_DataBinding)
            Case ListItemType.Footer
            ph.Controls.Add(New LiteralControl("</table>"))
            End Select
            container.Controls.Add(ph)
            End Sub
            End Class
    
    C\#
    
    ![copy_off.gif][] Copy Code
    
        public class MyTemplate : System.Web.UI.ITemplate
            {
            System.Web.UI.WebControls.ListItemType templateType;
            public MyTemplate(System.Web.UI.WebControls.ListItemType type)
            {
            templateType = type;
            }
            public void InstantiateIn(System.Web.UI.Control container)
            {
            PlaceHolder ph = new PlaceHolder();
            Label item1 = new Label();
            Label item2 = new Label();
            item1.ID = "item1";
            item2.ID = "item2";
            switch (templateType)
            {
            case ListItemType.Header:
            ph.Controls.Add(new LiteralControl("<table border=\"1\">" +
            "<tr><td><b>Category ID</b></td>" +
            "<td><b>Category Name</b></td></tr>"));
            break;
            case ListItemType.Item:
            ph.Controls.Add(new LiteralControl("<tr><td>"));
            ph.Controls.Add(item1);
            ph.Controls.Add(new LiteralControl("</td><td>"));
            ph.Controls.Add(item2);
            ph.Controls.Add(new LiteralControl("</td></tr>"));
            ph.DataBinding += new EventHandler(Item_DataBinding);
            break;
            case ListItemType.AlternatingItem:
            ph.Controls.Add(new LiteralControl("<tr bgcolor=\"lightblue\"><td>"));
            ph.Controls.Add(item1);
            ph.Controls.Add(new LiteralControl("</td><td>"));
            ph.Controls.Add(item2);
            ph.Controls.Add(new LiteralControl("</td></tr>"));
            ph.DataBinding += new EventHandler(Item_DataBinding);
            break;
            case ListItemType.Footer:
            ph.Controls.Add(new LiteralControl("</table>"));
            break;
            }
            container.Controls.Add(ph);
            }
            }

### To create the handler for the DataBinding event ###

1.  Create a method that is either part of your template class and is a peer of the class's other methods (such as **InstantiateIn**) or a static (**Shared** in Visual Basic) method of the page. The handler's name must match the name you used when binding the event earlier.
2.  Get a reference to the **DataItem** object that contains the data by doing the following:
    
    1.  Get a reference to the template item, which you can get from your control's [NamingContainer][] property.
    2.  Use that reference to get the naming container's (the template item's) [DataItem][] property.
    3.  Extract the individual data element from the **DataItem** object and use it to set a property of the control you are binding.
    
    The following code example illustrates one way to perform data binding within a dynamic template. It shows a complete data-binding event handler for the **PlaceHolder** control and for the **Literal** and [Label][] controls created in the previous procedure. The event handler is implemented as a static method of the page.
    
    Visual Basic
    
    ![copy_off.gif][] Copy Code
    
        Shared Sub Item_DataBinding(ByVal sender As Object, ByVal e As System.EventArgs)
            Dim ph As PlaceHolder = CType(sender, PlaceHolder)
            Dim ri As RepeaterItem = CType(ph.NamingContainer, RepeaterItem)
            Dim item1Value As Integer = _
            Convert.ToInt32(DataBinder.Eval(ri.DataItem, "CategoryID"))
            Dim item2Value As String = _
            Convert.ToString(DataBinder.Eval(ri.DataItem, "CategoryName"))
            CType(ph.FindControl("item1"), Label).Text = item1Value.ToString()
            CType(ph.FindControl("item2"), Label).Text = item2Value
            End Sub
    
    C\#
    
    ![copy_off.gif][] Copy Code
    
        static void Item_DataBinding(object sender, System.EventArgs e)
            {
            PlaceHolder ph = (PlaceHolder)sender;
            RepeaterItem ri = (RepeaterItem)ph.NamingContainer;
            Int32 item1Value = (Int32)DataBinder.Eval(ri.DataItem, "CategoryID");
            String item2Value = (String)DataBinder.Eval(ri.DataItem, "CategoryName");
            ((Label)ph.FindControl("item1")).Text = item1Value.ToString();
            ((Label)ph.FindControl("item2")).Text = item2Value;
            }

![minus.gif][] Using the Dynamic Template

When you have a dynamic template available, you can instantiate it in code.

### To use a dynamic template ###

1.  Create an instance of your dynamic template, passing it an item type value if appropriate.
2.  Assign the instance to one of the template properties of the templated control, such as the **ItemTemplate**, **AlternatingItemTemplate**, or **HeaderTemplate** properties.
    
    The following code example shows how to use the dynamic template with a **Repeater** control. In this example, the templates are instantiated while the page is being loaded and before the control is bound to its data source.
    
    The example below assumes that you can connect to the **Northwind** sample database on Microsoft SQL Server 7.0 or later. It returns a list of records from the Categories table.
    
    Visual Basic
    
    ![copy_off.gif][] Copy Code
    
        Protected Sub Page_Load(ByVal sender As Object, _
            ByVal e As System.EventArgs) Handles MyBase.Load
            Dim conn As New System.Data.SqlClient.SqlConnection( _
            ConfigurationManager.ConnectionStrings("Northwind").ConnectionString)
            Dim sqlDataAdapter1 As System.Data.SqlClient.SqlDataAdapter
            Dim dsCategories1 As System.Data.DataSet
            sqlDataAdapter1 = New System.Data.SqlClient.SqlDataAdapter( _
            "SELECT [CategoryID], [CategoryName] FROM [Categories]", conn)
            dsCategories1 = New System.Data.DataSet()
            Repeater1.HeaderTemplate = New MyTemplate(ListItemType.Header)
            Repeater1.ItemTemplate = New MyTemplate(ListItemType.Item)
            Repeater1.AlternatingItemTemplate = New MyTemplate(ListItemType.AlternatingItem)
            Repeater1.FooterTemplate = New MyTemplate(ListItemType.Footer)
            sqlDataAdapter1.Fill(dsCategories1, "Categories")
            Repeater1.DataSource = dsCategories1.Tables("Categories")
            Repeater1.DataBind()
            End Sub
    
    C\#
    
    ![copy_off.gif][] Copy Code
    
        protected void Page_Load(object sender, EventArgs e)
            {
            System.Data.SqlClient.SqlConnection conn =
            new System.Data.SqlClient.SqlConnection(
            ConfigurationManager.ConnectionStrings["Northwind"].ConnectionString);
            System.Data.SqlClient.SqlDataAdapter sqlDataAdapter1;
            System.Data.DataSet dsCategories1;
            sqlDataAdapter1 = new System.Data.SqlClient.SqlDataAdapter(
            "SELECT [CategoryID], [CategoryName] FROM [Categories]", conn);
            dsCategories1 = new System.Data.DataSet();
            Repeater1.HeaderTemplate = new MyTemplate(ListItemType.Header);
            Repeater1.ItemTemplate = new MyTemplate(ListItemType.Item);
            Repeater1.AlternatingItemTemplate =
            new MyTemplate(ListItemType.AlternatingItem);
            Repeater1.FooterTemplate = new MyTemplate(ListItemType.Footer);
            sqlDataAdapter1.Fill(dsCategories1, "Categories");
            Repeater1.DataSource = dsCategories1.Tables["Categories"];
            Repeater1.DataBind();
            }

![minus.gif][] Running the Complete Example

After creating all the components listed previously, add a **Repeater** control named Repeater1 to the page markup and run the page. The complete code and markup for the Web page (using the single-file code model) is shown below.

Visual Basic

![copy_off.gif][] Copy Code

<%@ Page Language="VB" %>
    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    <script runat="server">
    Public Class MyTemplate
    Implements System.Web.UI.ITemplate
    Dim templateType As ListItemType
    Sub New(ByVal type As ListItemType)
    templateType = type
    End Sub
    Public Sub InstantiateIn(ByVal container As System.Web.UI.Control) _
    Implements System.Web.UI.ITemplate.InstantiateIn
    Dim ph As New PlaceHolder()
    Dim item1 As New Label()
    Dim item2 As New Label()
    item1.ID = "item1"
    item2.ID = "item2"
    Select Case (templateType)
    Case ListItemType.Header
    ph.Controls.Add(New LiteralControl("<table border=""1"">" & _
    "<tr><td><b>Category ID</b></td>" & _
    "<td><b>Category Name</b></td></tr>"))
    Case ListItemType.Item
    ph.Controls.Add(New LiteralControl("<tr><td>"))
    ph.Controls.Add(item1)
    ph.Controls.Add(New LiteralControl("</td><td>"))
    ph.Controls.Add(item2)
    ph.Controls.Add(New LiteralControl("</td></tr>"))
    AddHandler ph.DataBinding, New EventHandler(AddressOf Item_DataBinding)
    Case ListItemType.AlternatingItem
    ph.Controls.Add(New LiteralControl("<tr bgcolor=""lightblue""><td>"))
    ph.Controls.Add(item1)
    ph.Controls.Add(New LiteralControl("</td><td>"))
    ph.Controls.Add(item2)
    ph.Controls.Add(New LiteralControl("</td></tr>"))
    AddHandler ph.DataBinding, New EventHandler(AddressOf Item_DataBinding)
    Case ListItemType.Footer
    ph.Controls.Add(New LiteralControl("</table>"))
    End Select
    container.Controls.Add(ph)
    End Sub
    End Class
    Shared Sub Item_DataBinding(ByVal sender As Object, ByVal e As System.EventArgs)
    Dim ph As PlaceHolder = CType(sender, PlaceHolder)
    Dim ri As RepeaterItem = CType(ph.NamingContainer, RepeaterItem)
    Dim item1Value As Integer = _
    Convert.ToInt32(DataBinder.Eval(ri.DataItem, "CategoryID"))
    Dim item2Value As String = _
    Convert.ToString(DataBinder.Eval(ri.DataItem, "CategoryName"))
    CType(ph.FindControl("item1"), Label).Text = item1Value.ToString()
    CType(ph.FindControl("item2"), Label).Text = item2Value
    End Sub
    Protected Sub Page_Load(ByVal sender As Object, _
    ByVal e As System.EventArgs) Handles MyBase.Load
    Dim conn As New System.Data.SqlClient.SqlConnection( _
    ConfigurationManager.ConnectionStrings("Northwind").ConnectionString)
    Dim sqlDataAdapter1 As System.Data.SqlClient.SqlDataAdapter
    Dim dsCategories1 As System.Data.DataSet
    sqlDataAdapter1 = New System.Data.SqlClient.SqlDataAdapter( _
    "SELECT [CategoryID], [CategoryName] FROM [Categories]", conn)
    dsCategories1 = New System.Data.DataSet()
    Repeater1.HeaderTemplate = New MyTemplate(ListItemType.Header)
    Repeater1.ItemTemplate = New MyTemplate(ListItemType.Item)
    Repeater1.AlternatingItemTemplate = New MyTemplate(ListItemType.AlternatingItem)
    Repeater1.FooterTemplate = New MyTemplate(ListItemType.Footer)
    sqlDataAdapter1.Fill(dsCategories1, "Categories")
    Repeater1.DataSource = dsCategories1.Tables("Categories")
    Repeater1.DataBind()
    End Sub
    </script>
    <html  >
    <head runat="server">
    <title>Dynamically Creating Templates</title>
    </head>
    <body>
    <form id="form1" runat="server">
    <div>
    <asp:Repeater id="Repeater1" runat="server"></asp:Repeater>
    </div>
    </form>
    </body>
    </html>

C\#

![copy_off.gif][] Copy Code

<%@ Page Language="C#" %>
    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    <script runat="server">
    public class MyTemplate : System.Web.UI.ITemplate
    {
    System.Web.UI.WebControls.ListItemType templateType;
    public MyTemplate(System.Web.UI.WebControls.ListItemType type)
    {
    templateType = type;
    }
    public void InstantiateIn(System.Web.UI.Control container)
    {
    PlaceHolder ph = new PlaceHolder();
    Label item1 = new Label();
    Label item2 = new Label();
    item1.ID = "item1";
    item2.ID = "item2";
    switch (templateType)
    {
    case ListItemType.Header:
    ph.Controls.Add(new LiteralControl("<table border=\"1\">" +
    "<tr><td><b>Category ID</b></td>" +
    "<td><b>Category Name</b></td></tr>"));
    break;
    case ListItemType.Item:
    ph.Controls.Add(new LiteralControl("<tr><td>"));
    ph.Controls.Add(item1);
    ph.Controls.Add(new LiteralControl("</td><td>"));
    ph.Controls.Add(item2);
    ph.Controls.Add(new LiteralControl("</td></tr>"));
    ph.DataBinding += new EventHandler(Item_DataBinding);
    break;
    case ListItemType.AlternatingItem:
    ph.Controls.Add(new LiteralControl("<tr bgcolor=\"lightblue\"><td>"));
    ph.Controls.Add(item1);
    ph.Controls.Add(new LiteralControl("</td><td>"));
    ph.Controls.Add(item2);
    ph.Controls.Add(new LiteralControl("</td></tr>"));
    ph.DataBinding += new EventHandler(Item_DataBinding);
    break;
    case ListItemType.Footer:
    ph.Controls.Add(new LiteralControl("</table>"));
    break;
    }
    container.Controls.Add(ph);
    }
    }
    static void Item_DataBinding(object sender, System.EventArgs e)
    {
    PlaceHolder ph = (PlaceHolder)sender;
    RepeaterItem ri = (RepeaterItem)ph.NamingContainer;
    Int32 item1Value = (Int32)DataBinder.Eval(ri.DataItem, "CategoryID");
    String item2Value = (String)DataBinder.Eval(ri.DataItem, "CategoryName");
    ((Label)ph.FindControl("item1")).Text = item1Value.ToString();
    ((Label)ph.FindControl("item2")).Text = item2Value;
    }
    protected void Page_Load(object sender, EventArgs e)
    {
    System.Data.SqlClient.SqlConnection conn =
    new System.Data.SqlClient.SqlConnection(
    ConfigurationManager.ConnectionStrings["Northwind"].ConnectionString);
    System.Data.SqlClient.SqlDataAdapter sqlDataAdapter1;
    System.Data.DataSet dsCategories1;
    sqlDataAdapter1 = new System.Data.SqlClient.SqlDataAdapter(
    "SELECT [CategoryID], [CategoryName] FROM [Categories]", conn);
    dsCategories1 = new System.Data.DataSet();
    Repeater1.HeaderTemplate = new MyTemplate(ListItemType.Header);
    Repeater1.ItemTemplate = new MyTemplate(ListItemType.Item);
    Repeater1.AlternatingItemTemplate =
    new MyTemplate(ListItemType.AlternatingItem);
    Repeater1.FooterTemplate = new MyTemplate(ListItemType.Footer);
    sqlDataAdapter1.Fill(dsCategories1, "Categories");
    Repeater1.DataSource = dsCategories1.Tables["Categories"];
    Repeater1.DataBind();
    }
    </script>
    <html  >
    <head runat="server">
    <title>Dynamically Creating Templates</title>
    </head>
    <body>
    <form id="form1" runat="server">
    <div>
    <asp:Repeater id="Repeater1" runat="server"></asp:Repeater>
    </div>
    </form>
    </body>
    </html>

转载于:https://www.cnblogs.com/easyjacky/articles/1008809.html

[DataList]: http://msdn2.microsoft.com/en-us/library/7efxhktc%28VS.80%29.aspx
[Repeater]: http://msdn2.microsoft.com/en-us/library/w9283stf%28VS.80%29.aspx
[GridView]: http://msdn2.microsoft.com/en-us/library/4w7ya1ts%28VS.80%29.aspx
[FormView]: http://msdn2.microsoft.com/en-us/library/ka8cb0xz%28VS.80%29.aspx
[DetailsView]: http://msdn2.microsoft.com/en-us/library/7z482d0y%28VS.80%29.aspx
[minus.gif]: /images/20211109/bd28d6e839534411806b4aab6f0a3709.png
[System.Web.UI.ITemplate]: http://msdn2.microsoft.com/en-us/library/5t6w7c3t%28VS.80%29.aspx
[InstantiateIn]: http://msdn2.microsoft.com/en-us/library/tw3hy1td%28VS.80%29.aspx
[DataBinding]: http://msdn2.microsoft.com/en-us/library/6h0fs4kf%28VS.80%29.aspx
[PlaceHolder]: http://msdn2.microsoft.com/en-us/library/dxhhzts9%28VS.80%29.aspx
[Item]: http://msdn2.microsoft.com/en-us/library/sz4ywbda%28VS.80%29.aspx
[copy_off.gif]: /images/20211109/0c899913750b483eb9306a436b2cffca.png
[NamingContainer]: http://msdn2.microsoft.com/en-us/library/b782ctce%28VS.80%29.aspx
[DataItem]: http://msdn2.microsoft.com/en-us/library/2e95ce4k%28VS.80%29.aspx
[Label]: http://msdn2.microsoft.com/en-us/library/620f4ses%28VS.80%29.aspx