DetailsView.TopPagerRow プロパティとは? わかりやすく解説

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DetailsView.TopPagerRow プロパティ

メモ : このプロパティは、.NET Framework version 2.0新しく追加されたものです。

DetailsView コントロールの上部のページ行を表す DetailsViewRow オブジェクト取得します

名前空間: System.Web.UI.WebControls
アセンブリ: System.Web (system.web.dll 内)
構文構文

Public Overridable ReadOnly
 Property TopPagerRow As DetailsViewRow
Dim instance As DetailsView
Dim value As DetailsViewRow

value = instance.TopPagerRow
public virtual DetailsViewRow TopPagerRow { get;
 }
public:
virtual property DetailsViewRow^ TopPagerRow {
    DetailsViewRow^ get ();
}
/** @property */
public DetailsViewRow get_TopPagerRow ()
public function get TopPagerRow
 () : DetailsViewRow

プロパティ
DetailsView コントロールの上部のページ行を表す DetailsViewRow

解説解説
使用例使用例

TopPagerRow プロパティ使用してItemCreated イベント中に DetailsView コントロールの上部のページ行にアクセスする方法コード例次に示しますカスタム ページ行の中の 2 つLabel コントロールが、現在のページ番号ページ総数更新されます。

<%@ Page language="VB" %>

<script runat="server">

    Protected Sub CustomerDetailView_DataBound(ByVal
 sender As Object, ByVal
 e As EventArgs)
        ' Get the pager row.
        Dim pagerRow As DetailsViewRow = CustomerDetailView.TopPagerRow

        ' Get the Label controls that display the current page information
 
        ' from the pager row.
        Dim pageNum As Label = CType(pagerRow.Cells(0).FindControl("PageNumberLabel"),
 Label)
        Dim totalNum As Label = CType(pagerRow.Cells(0).FindControl("TotalPagesLabel"),
 Label)

        If (pageNum IsNot Nothing) And
 (totalNum IsNot Nothing) Then
            ' Update the Label controls with the current page values.
            Dim page As Integer
 = CustomerDetailView.DataItemIndex + 1
            Dim count As Integer
 = CustomerDetailView.DataItemCount

            pageNum.Text = Page.ToString()
            totalNum.Text = count.ToString()
        End If
    End Sub

    </script>

<html>

  <body>
    <form id="Form1" runat="server">
        
      <h3>DetailsView TopPagerRow Example</h3>
              
        <!-- Notice that the LinkButton controls in the pager
   -->
        <!-- template have their CommandName properties set.
    -->
        <!-- The DetailsView control automatically recognizes   -->
        <!-- certain command names and performs the appropriate
 -->
        <!-- operation. In this example, the CommandName  
      -->
        <!-- properties are set to "Page"
                       -->
        <!-- and the CommandArgument                      
      -->
        <!-- properties are set to "Next"
 and "Prev", which     -->
        <!-- causes the DetailsView control to navigate to
 the  -->
        <!-- next and previous record, respectively.
            -->        
        <asp:detailsview id="CustomerDetailView"
          datasourceid="DetailsViewSource"
          autogeneraterows="true" 
          allowpaging="true"
          runat="server" 
          OnDataBound="CustomerDetailView_DataBound">
               
          <fieldheaderstyle backcolor="Navy"
            forecolor="White"/>
            
          <PagerSettings Position=top /> 
          
          <pagertemplate>
            <table width="100%">
              <tr>
                <td>
                  <asp:LinkButton id="PreviousButton"
                    text="<"
                    CommandName="Page"
                    CommandArgument="Prev"
                    runat="Server"/>
                  <asp:LinkButton id="NextButton"
                    text=">"
                    CommandName="Page"
                    CommandArgument="Next"
                    runat="Server"/> 
                </td>
                <td align="right">         
       
                  Page <asp:Label id="PageNumberLabel"
 runat="server"/> 
                  of <asp:Label id="TotalPagesLabel"
 runat="server"/>                
                </td>
              </tr>
            </table>          
          </pagertemplate>   
                    
        </asp:detailsview>
        <!-- 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"
 runat="server" 
          ConnectionString=
            "<%$ ConnectionStrings:NorthWindConnectionString%>"
            InsertCommand="INSERT INTO [Customers]([CustomerID],
 [CompanyName], [Address], [City], [PostalCode], [Country]) VALUES (@CustomerID,
 @CompanyName, @Address, @City, @PostalCode, @Country)"
          SelectCommand="Select [CustomerID], [CompanyName], 
            [Address], [City], [PostalCode], [Country] From 
            [Customers]">
        </asp:SqlDataSource>
    </form>
  </body>
</html>

<%@ Page language="C#" %>

<script runat="server">

    protected void CustomerDetailView_DataBound(object
 sender, EventArgs e)
    {

        // Get the pager row.
        DetailsViewRow pagerRow = CustomerDetailView.TopPagerRow;

        // Get the Label controls that display the current page information
 
        // from the pager row.
        Label pageNum = (Label)pagerRow.Cells[0].FindControl("PageNumberLabel");
        Label totalNum = (Label)pagerRow.Cells[0].FindControl("TotalPagesLabel");

        if ((pageNum != null) && (totalNum
 != null))
        {
            // Update the Label controls with the current page values.
            int page = CustomerDetailView.DataItemIndex + 1;
            int count = CustomerDetailView.DataItemCount;

            pageNum.Text = page.ToString();
            totalNum.Text = count.ToString();
        }

    }
</script>

<html>

  <body>
    <form id="Form1" runat="server">
        
      <h3>DetailsView TopPagerRow Example</h3>
              
        <!-- Notice that the LinkButton controls in the pager
   -->
        <!-- template have their CommandName properties set.
    -->
        <!-- The DetailsView control automatically recognizes   -->
        <!-- certain command names and performs the appropriate -->
        <!-- operation. In this example, the CommandName  
      -->
        <!-- properties are set to "Next" and "Prev",
 which     -->
        <!-- causes the DetailsView control to navigate to the  -->
        <!-- next and previous record, respectively.            -->       
 
        <asp:detailsview id="CustomerDetailView"
          datasourceid="DetailsViewSource"
          autogeneraterows="true" 
          allowpaging="true"
          runat="server" OnDataBound="CustomerDetailView_DataBound">
               
          <fieldheaderstyle backcolor="Navy"
            forecolor="White"/>
            
          <PagerSettings Position=top /> 
          
          <pagertemplate>
            <table width="100%">
              <tr>
                <td>
                  <asp:LinkButton id="PreviousButton"
                    text="<"
                    CommandName="Page"
                    CommandArgument="Prev"
                    runat="Server"/>
                  <asp:LinkButton id="NextButton"
                    text=">"
                    CommandName="Page"
                    CommandArgument="Next"
                    runat="Server"/> 
                </td>
                <td align="right">                
                  Page <asp:Label id="PageNumberLabel" runat="server"/>
 
                  of <asp:Label id="TotalPagesLabel" runat="server"/>
                
                </td>
              </tr>
            </table>          
          </pagertemplate>   
                    
        </asp:detailsview>
        <!-- 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" runat="server"
 
          ConnectionString=
            "<%$ ConnectionStrings:NorthWindConnectionString%>"
            InsertCommand="INSERT INTO [Customers]([CustomerID], [CompanyName],
 [Address], [City], [PostalCode], [Country]) VALUES (@CustomerID, @CompanyName,
 @Address, @City, @PostalCode, @Country)"
          SelectCommand="Select [CustomerID], [CompanyName], 
            [Address], [City], [PostalCode], [Country] From 
            [Customers]">
        </asp:SqlDataSource>
    </form>
  </body>
</html>

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参照参照
関連項目
DetailsView クラス
DetailsView メンバ
System.Web.UI.WebControls 名前空間
DetailsViewRow
DetailsView.AllowPaging プロパティ
DetailsView.BottomPagerRow プロパティ
ItemCreated



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