HtmlTableRowCollection.Count 属性
定义
重要
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获取 HtmlTableRowCollection 集合中 HtmlTableRow 对象的数目。
public:
property int Count { int get(); };public int Count { get; }member this.Count : intPublic ReadOnly Property Count As Integer属性值
HtmlTableRow 中 HtmlTableRowCollection 对象的数目。 默认值是 0。
实现
示例
下面的代码示例演示如何使用 Count 属性来确定 控件中的 HtmlTable 行数。 然后，此值用作循环的上限，以循环访问表的行。
<%@ 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>
注解
Count使用 属性确定集合中包含的HtmlTableRowCollection行数。 属性 Count 通常在循环访问集合以确定上限时使用。
