DetailsViewRowCollection.CopyTo メソッド
アセンブリ: System.Web (system.web.dll 内)

Dim instance As DetailsViewRowCollection Dim array As DetailsViewRow() Dim index As Integer instance.CopyTo(array, index)

このメソッドを使用して、DetailsViewRowCollection オブジェクト内の項目を指定された配列にコピーします。コピー操作は、配列内の指定されたインデックス位置から始まります。後でこの配列を使用して、コレクション内の項目にアクセスできます。
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CopyTo メソッドを使用して、DetailsViewRowCollection オブジェクト内の項目を配列にコピーする方法のコード例を次に示します。配列が反復処理され、各行の値がページに表示されます。
<%@ page language="VB" %> <script runat="server"> Sub SubmitButton_Click(ByVal sender As Object, ByVal e As EventArgs) ' Use the Count property to determine whether the ' Rows collection contains any item. If ItemDetailsView.Rows.Count > 0 Then MessageLabel.Text = "The row values are: <br/><br/>" ' Copy the items in the Rows collection to an array. Dim rowArray(ItemDetailsView.Rows.Count - 1) As DetailsViewRow ItemDetailsView.Rows.CopyTo(rowArray, 0) ' Iterate though the array and display the value in the ' first cell of the row. Dim row As DetailsViewRow For Each row In rowArray ' Use the Text property to access the value of ' each cell. In this example, the cells in the ' first column (index 0) contains the field names, ' while the cells in the second column (index 1) ' contains the field value. MessageLabel.Text &= row.Cells(0).Text & " = " & _ row.Cells(1).Text & "<br/>" Next Else MessageLabel.Text = "No items." End If End Sub </script> <html> <body> <form runat="server"> <h3>DetailsViewRowCollection CopyTo Example</h3> <asp:detailsview id="ItemDetailsView" datasourceid="DetailsViewSource" allowpaging="true" autogeneraterows="false" runat="server"> <fields> <asp:boundfield datafield="CustomerID" headertext="Customer ID"/> <asp:boundfield datafield="CompanyName" headertext="Company Name"/> <asp:boundfield datafield="Address" headertext="Address"/> <asp:boundfield datafield="City" headertext="City"/> <asp:boundfield datafield="PostalCode" headertext="ZIP Code"/> <asp:boundfield datafield="Country" headertext="Country"/> </fields> </asp:detailsview> <br/> <asp:button id="SubmitButton" text="Display Row Values" onclick="SubmitButton_Click" runat="server"/> <br/><br/> <asp:label id="MessageLabel" forecolor="Red" runat="server"/> <!-- This example uses Microsoft SQL Server and connects --> <!-- to the Northwind sample database. Use an ASP.NET --> <!-- expression to retrieve the connection string value --> <!-- from the web.config file. --> <asp:sqldatasource id="DetailsViewSource" selectcommand="Select [CustomerID], [CompanyName], [Address], [City], [PostalCode], [Country] From [Customers]" connectionstring= "<%$ ConnectionStrings:NorthWindConnectionString%>" runat="server"/> </form> </body> </html>
<%@ page language="C#" %> <script runat="server"> void SubmitButton_Click(Object sender, EventArgs e) { // Use the Count property to determine whether the // Rows collection contains any item. if (ItemDetailsView.Rows.Count > 0) { MessageLabel.Text = "The row values are: <br/><br/>"; // Copy the items in the Rows collection to an array. DetailsViewRow[] rowArray = new DetailsViewRow[ItemDetailsView.Rows.Count]; ItemDetailsView.Rows.CopyTo(rowArray, 0); // Iterate though the array and display the value in the // first cell of the row. foreach (DetailsViewRow row in rowArray) { // Use the Text property to access the value of // each cell. In this example, the cells in the // first column (index 0) contains the field names, // while the cells in the second column (index 1) // contains the field value. MessageLabel.Text += row.Cells[0].Text + " = " + row.Cells[1].Text + "<br/>"; } } else { MessageLabel.Text = "No items."; } } </script> <html> <body> <form runat="server"> <h3>DetailsViewRowCollection CopyTo Example</h3> <asp:detailsview id="ItemDetailsView" datasourceid="DetailsViewSource" allowpaging="true" autogeneraterows="false" runat="server"> <fields> <asp:boundfield datafield="CustomerID" headertext="Customer ID"/> <asp:boundfield datafield="CompanyName" headertext="Company Name"/> <asp:boundfield datafield="Address" headertext="Address"/> <asp:boundfield datafield="City" headertext="City"/> <asp:boundfield datafield="PostalCode" headertext="ZIP Code"/> <asp:boundfield datafield="Country" headertext="Country"/> </fields> </asp:detailsview> <br/> <asp:button id="SubmitButton" text="Display Row Values" onclick="SubmitButton_Click" runat="server"/> <br/><br/> <asp:label id="MessageLabel" forecolor="Red" runat="server"/> <!-- This example uses Microsoft SQL Server and connects --> <!-- to the Northwind sample database. Use an ASP.NET --> <!-- expression to retrieve the connection string value --> <!-- from the web.config file. --> <asp:sqldatasource id="DetailsViewSource" selectcommand="Select [CustomerID], [CompanyName], [Address], [City], [PostalCode], [Country] From [Customers]" connectionstring= "<%$ ConnectionStrings:NorthWindConnectionString%>" runat="server"/> </form> </body> </html>

Windows 98, Windows 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
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