HtmlTableCellCollection.GetEnumerator HtmlTableCellCollection.GetEnumerator HtmlTableCellCollection.GetEnumerator HtmlTableCellCollection.GetEnumerator Method

Definizione

Restituisce un oggetto implementato IEnumerator contenente tutti gli oggetti HtmlTableCell nell'insieme HtmlTableCellCollection.Returns a IEnumerator-implemented object that contains all HtmlTableCell objects in the HtmlTableCellCollection collection.

public:
 virtual System::Collections::IEnumerator ^ GetEnumerator();
public System.Collections.IEnumerator GetEnumerator ();
abstract member GetEnumerator : unit -> System.Collections.IEnumerator
override this.GetEnumerator : unit -> System.Collections.IEnumerator
Public Function GetEnumerator () As IEnumerator

Restituisce

Oggetto implementato IEnumerator contenente tutti gli oggetti HtmlTableCell nell'insieme HtmlTableCellCollection.A IEnumerator-implemented object that contains all HtmlTableCell objects in the HtmlTableCellCollection.

Implementazioni

Esempi

Esempio di codice seguente viene illustrato come utilizzare il GetEnumerator metodo per creare un System.Collections.IEnumerator-oggetto implementato.The following code example demonstrates how to use the GetEnumerator method to create a System.Collections.IEnumerator-implemented object. L'oggetto viene quindi scorrere per visualizzare il contenuto del HtmlTableCellCollection raccolta.The object is then iterated through to display the contents of the HtmlTableCellCollection collection.

<%@ Page Language="C#" AutoEventWireup="True" %>

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

  void Button_Click(Object sender, EventArgs e)
  {

    HtmlTableCell current_cell;

    // Create an IEnumerator instance.
    IEnumerator myEnum = Table1.Rows[0].Cells.GetEnumerator();

    Span1.InnerText = "The items in the first row are: ";

    // Iterate through the IEnumerator and display its contents.
    while (myEnum.MoveNext())
    {

      current_cell = (HtmlTableCell)myEnum.Current;
      Span1.InnerText = Span1.InnerText + " " + current_cell.InnerText;

    }

  }

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
   <title>HtmlTableCellCollection Example</title>
</head>
<body>

   <form id="form1" runat="server">

      <h3>HtmlTableCellCollection Example</h3>

      <table id="Table1" 
             style="border-width:1; border-color:Black"
             runat="server">

         <tr>
            <td>
               Cell 1
            </td>
            <td>
               Cell 2
            </td>
         </tr>
         <tr>
            <td>
               Cell 3
            </td>
            <td>
               Cell 4
            </td>
         </tr>

      </table>

      <br /><br />
  
      <input type="button" 
             value="Display the contents of the first row"
             onserverclick="Button_Click" 
             runat="server"/>

      <br /><br />

      <span id="Span1"
            runat="server"/>

   </form>

</body>
</html>
<%@ Page Language="VB" AutoEventWireup="True" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
  
  Sub Button_Click(ByVal sender As Object, ByVal e As EventArgs)
 
    Dim current_cell As HtmlTableCell

    ' Create an IEnumerator instance.
    Dim myEnum As IEnumerator = Table1.Rows(0).Cells.GetEnumerator()

    Span1.InnerText = "The items in the first row are: "

    ' Iterate through the IEnumerator and display its contents.
    While myEnum.MoveNext()
         
      current_cell = CType(myEnum.Current, HtmlTableCell)
      Span1.InnerText = Span1.InnerText & " " & current_cell.InnerText

    End While

  End Sub

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
   <title>HtmlTableCellCollection Example</title>
</head>
<body>

   <form id="form1" runat="server">

      <h3>HtmlTableCellCollection Example</h3>

      <table id="Table1" 
             style="border-width:1; border-color:Black"
             runat="server">

         <tr>
            <td>
               Cell 1
            </td>
            <td>
               Cell 2
            </td>
         </tr>
         <tr>
            <td>
               Cell 3
            </td>
            <td>
               Cell 4
            </td>
         </tr>

      </table>

      <br /><br />
  
      <input type="button" 
             value="Display the contents of the first row"
             onserverclick="Button_Click" 
             runat="server"/>

      <br /><br />

      <span id="Span1"
            runat="server"/>

   </form>

</body>
</html>

Commenti

Usare questo metodo per creare un System.Collections.IEnumerator-oggetto che può scorrere per recuperare il contenuto di ogni elemento nel implementato il HtmlTableCellCollection raccolta.Use this method to create a System.Collections.IEnumerator-implemented object that can be iterated through to retrieve the contents of each item in the HtmlTableCellCollection collection.

Usare il IEnumerator.Current proprietà da ottenere l'elemento attualmente puntato nella raccolta.Use the IEnumerator.Current property to get the item currently pointed to in the collection.

Usare il IEnumerator.MoveNext metodo per spostare l'elemento successivo nella raccolta.Use the IEnumerator.MoveNext method to move to the next item in the collection.

Usare il IEnumerator.Reset metodo per spostare l'enumeratore sulla posizione iniziale.Use the IEnumerator.Reset method to move the enumerator to the initial position.

Nota

Il IEnumerator.MoveNext metodo deve essere chiamato dopo la creazione il System.Collections.IEnumerator-implementato l'oggetto, o dopo aver usato il IEnumerator.Reset metodo per spostare l'enumeratore al primo elemento nella raccolta.The IEnumerator.MoveNext method must be called after creating the System.Collections.IEnumerator-implemented object, or after using the IEnumerator.Reset method to move the enumerator to the first item in the collection. In caso contrario, l'elemento rappresentato dal IEnumerator.Current proprietà non è definita.Otherwise, the item represented by the IEnumerator.Current property is undefined.

Si applica a

Vedi anche