TableRowCollection.CopyTo(Array, Int32) 方法
定义
重要
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从 TableRowCollection 中的指定索引开始，将 Array 中的项复制到指定的 Array。
public:
virtual void CopyTo(Array ^ array, int index);public void CopyTo (Array array, int index);abstract member CopyTo : Array * int -> unit
override this.CopyTo : Array * int -> unitPublic Sub CopyTo (array As Array, index As Integer)参数
- array
- Array
一个从零开始的 Array，它接收 TableRowCollection 的复制项。
实现
示例
以下示例演示如何使用 CopyTo 方法将项从 TableRowCollection 复制到指定的数组中。
<%@ Page Language="C#" %>
<%@ Import Namespace="System.Text" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
void Page_Load(object sender, EventArgs e)
{
int numRows = 5;
int numCells = 6;
int counter = 1;
ArrayList a_row = new ArrayList();
// Create a table.
for (int rowNum = 0; rowNum < numRows; rowNum++)
{
TableRow rw = new TableRow();
int cellNum = 0;
for (cellNum = 0; cellNum < numCells; cellNum++)
{
TableCell cel = new TableCell();
cel.Text = counter.ToString();
rw.Cells.Add(cel);
counter++;
}
Table1.Rows.Add(rw);
}
}
void Button_Click(object sender, EventArgs e)
{
int rowCounter = 0;
TableRow[] myRowArray = null;
TableCell[] myCellArray = null;
StringBuilder tb = new StringBuilder();
// Copy the Rows collection to an array.
Table1.Rows.CopyTo(myRowArray, 0);
tb.Append("The copied items from the table are: \n");
// Iterate through the TableRows in the array.
foreach (TableRow rw in myRowArray)
{
// Copy the Cells collection of a row to an array.
Table1.Rows[rowCounter].Cells.CopyTo(myCellArray, 0);
// Iterate through the cell array
// and display its contents.
foreach (TableCell cell in myCellArray)
tb.Append(cell.Text + ", ");
Label1.Text = tb.ToString();
rowCounter++;
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>TableCellCollection Example</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h3>TableCellCollection Example</h3>
<asp:Table id="Table1" runat="server"/>
<br /> <br />
<asp:Button id="Button1"
Text="Copy Table to Array"
OnClick="Button_Click"
runat="server"/>
<br /> <br />
<asp:Label id="Label1" runat="server"/>
</div>
</form>
</body>
</html>
<%@ Page Language="VB" %>
<%@ Import Namespace="System.Text" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
Dim numRows As Integer = 5
Dim numCells As Integer = 6
Dim counter As Integer = 1
Dim a_row As New ArrayList()
' Create a table.
Dim rowNum As Integer
For rowNum = 0 To numRows - 1
Dim rw As New TableRow()
Dim cellNum As Integer
For cellNum = 0 To numCells - 1
Dim cel As New TableCell()
cel.Text = counter.ToString()
rw.Cells.Add(cel)
counter += 1
Next
Table1.Rows.Add(rw)
Next
End Sub
Sub Button_Click(ByVal sender As Object, ByVal e As EventArgs)
Dim rowCounter As Integer = 0
Dim myRowArray(4) As TableRow
Dim myCellArray(5) As TableCell
Dim tb As New StringBuilder
' Copy the Rows collection to an array.
Table1.Rows.CopyTo(myRowArray, 0)
tb.Append("The copied items from the table are: <br />")
' Iterate through the TableRows in the array.
Dim rw As TableRow
For Each rw In myRowArray
' Copy the Cells collection of a row to an array.
Table1.Rows(rowCounter).Cells.CopyTo(myCellArray, 0)
' Iterate through the cell array
' and display its contents.
Dim cell As TableCell
For Each cell In myCellArray
tb.Append(cell.Text & ", ")
Next
Label1.Text = tb.ToString()
rowCounter += 1
Next
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>TableCellCollection Example</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h3>TableCellCollection Example</h3>
<asp:Table id="Table1" runat="server" />
<br /> <br />
<asp:Button id="Button1"
Text="Copy Table to Array"
OnClick="Button_Click"
runat="server"/>
<br /> <br />
<asp:Label id="Label1" runat="server" />
</div>
</form>
</body>
</html>
注解
使用此方法将 的内容复制到 TableRowCollection 指定的 中，从指定的 System.Array索引开始。
注意
参数 array 必须是从零开始的 System.Array。
