共用方式為


HtmlTableRowCollection.Count 屬性

定義

取得 HtmlTableRowCollection 集合中 HtmlTableRow 物件的數目。

public:
 property int Count { int get(); };
public int Count { get; }
member this.Count : int
Public ReadOnly Property Count As Integer

屬性值

HtmlTableRowHtmlTableRowCollection 物件的數目。 預設值是 0

實作

範例

下列程式碼範例示範如何使用 Count 屬性來判斷 控制項中的資料 HtmlTable 列數目。 接著,這個值會當做迴圈的上限,逐一查看資料表的資料列。

<%@ 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)
  {
    
    // Iterate through the rows of the table.
    for (int i = 0; i <= Table1.Rows.Count - 1; i++)
    {

      // Iterate through the cells of a row.
      for (int j = 0; j <= Table1.Rows[i].Cells.Count - 1; j++)
      {
        // Change the inner HTML of the cell.
        Table1.Rows[i].Cells[j].InnerHtml = "Row " + i.ToString() +
                                            ", Column " + j.ToString();
      }

    }

  }

</script>

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

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

      <h3>HtmlTableRowCollection Example</h3>

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

         <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="Change Table Contents"
             onserverclick="Button_Click" 
             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 i As Integer
    Dim j As Integer

    ' Iterate through the rows of the table.
    For i = 0 To Table1.Rows.Count - 1

      ' Iterate through the cells of a row.       
      For j = 0 To Table1.Rows(i).Cells.Count - 1
            
        ' Change the inner HTML of the cell.
        Table1.Rows(i).Cells(j).InnerHtml = "Row " & i.ToString() & _
                                            ", Column " & j.ToString()
      Next j

    Next i

  End Sub

</script>

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

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

      <h3>HtmlTableRowCollection Example</h3>

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

         <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="Change Table Contents"
             onserverclick="Button_Click" 
             runat="server"/>

   </form>

</body>
</html>

備註

Count使用 屬性來判斷集合中包含的 HtmlTableRowCollection 資料列數目。 在 Count 逐一查看集合以判斷上限時,通常會使用 屬性。

適用於

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