DataGrid.PageSize プロパティとは? わかりやすく解説

Weblio 辞書 > コンピュータ > .NET Framework クラス ライブラリ リファレンス > DataGrid.PageSize プロパティの意味・解説 

DataGrid.PageSize プロパティ

DataGrid コントロール1 ページ表示される項目数を取得または設定します

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 Property
 PageSize As Integer
Dim instance As DataGrid
Dim value As Integer

value = instance.PageSize

instance.PageSize = value
public virtual int PageSize { get;
 set; }
/** @property */
public int get_PageSize ()

/** @property */
public void set_PageSize (int
 value)

プロパティ
DataGrid コントロール1 ページ表示される項目数。既定値は、10 です。

例外例外
例外種類条件

ArgumentOutOfRangeException

指定されページ サイズ1 未満です。

解説解説
使用例使用例

PageSize プロパティ使用してDataGrid コントロール1 つページ5 つの項目が表示されるように指定する方法次のコード例示します

<%@ Page Language="VB" AutoEventWireup="True"
 %>
<%@ Import Namespace="System.Data"
 %>
 
 <html>
 <script language="VB" runat="server">
 Function CreateDataSource() As ICollection
    Dim dt As New DataTable()
    Dim dr As DataRow
    
    dt.Columns.Add(New DataColumn("IntegerValue",
 GetType(Int32)))
    dt.Columns.Add(New DataColumn("StringValue",
 GetType(String)))
    dt.Columns.Add(New DataColumn("DateTimeValue",
 GetType(String)))
    dt.Columns.Add(New DataColumn("BoolValue",
 GetType(Boolean)))
    
    Dim i As Integer
    For i = 0 To 99
        dr = dt.NewRow()
        
        dr(0) = i
        dr(1) = "Item " & i.ToString()
        dr(2) = DateTime.Now.ToShortDateString()
        If i Mod 2 <> 0 Then
            dr(3) = True
        Else
            dr(3) = False
        End If
        
        dt.Rows.Add(dr)
    Next i
    
    Dim dv As New DataView(dt)
    Return dv
End Function 'CreateDataSource


Sub Page_Load(sender As Object,
 e As EventArgs)
    If chk1.Checked Then
        MyDataGrid.PagerStyle.Mode = PagerMode.NumericPages
    Else
        MyDataGrid.PagerStyle.Mode = PagerMode.NextPrev
    End If 
    BindGrid()
End Sub 'Page_Load


Sub MyDataGrid_Page(sender As Object,
 e As DataGridPageChangedEventArgs)
    MyDataGrid.CurrentPageIndex = e.NewPageIndex
    BindGrid()
End Sub 'MyDataGrid_Page


Sub BindGrid()
    MyDataGrid.DataSource = CreateDataSource()
    MyDataGrid.DataBind()
    ShowStats()
End Sub 'BindGrid


Sub ShowStats()
    lblEnabled.Text = "AllowPaging is " & MyDataGrid.AllowPaging
    lblCurrentIndex.Text = "CurrentPageIndex is "
 & MyDataGrid.CurrentPageIndex
    lblPageCount.Text = "PageCount is " & MyDataGrid.PageCount
    lblPageSize.Text = "PageSize is " & MyDataGrid.PageSize
End Sub 'ShowStats

 
 
 </script>
 
 <body>
 
    <h3>DataGrid Paging Example</h3>
 
    <form runat=server>
 
       <asp:DataGrid id="MyDataGrid" runat="server"
            AllowPaging="True"
            PageSize="10"
            OnPageIndexChanged="MyDataGrid_Page"
            BorderColor="black"
            BorderWidth="1"
            GridLines="Both"
            CellPadding="3"
            CellSpacing="0"
            Font-Name="Verdana"
            Font-Size="8pt">

            <PagerStyle Mode="NumericPages"
                        HorizontalAlign="Right">
            </PagerStyle>


            <HeaderStyle BackColor="#aaaadd">
            </HeaderStyle>

            <AlternatingItemStyle BackColor="#eeeeee">
            </AlternatingItemStyle>

       </asp:DataGrid>
 
       <p>
 
       <asp:Checkbox id="chk1" runat="server"
            Text="Show numeric page navigation buttons"
            Font-Name="Verdana"
            Font-Size="8pt"
            AutoPostBack="true"/>
 
       <p>
 
       <table bgcolor="#eeeeee" cellpadding="6">
          <tr>
             <td nowrap>
                
 
                   <asp:Label id="lblEnabled" 
                        runat="server"/><br>
                   <asp:Label id="lblCurrentIndex"
 
                        runat="server"/><br>
                   <asp:Label id="lblPageCount"
 
                        runat="server"/><br>
                   <asp:Label id="lblPageSize"
 
                        runat="server"/><br>
 
                
             </td>
          </tr>
       </table>
 
    </form>
 
 </body>
 </html>
   
<%@ Page Language="C#" AutoEventWireup="True" %>
<%@ Import Namespace="System.Data" %>
 
 <html>
 <script language="C#" runat="server">
 
    ICollection CreateDataSource() 
    {
       DataTable dt = new DataTable();
       DataRow dr;
 
       dt.Columns.Add(new DataColumn("IntegerValue",
 typeof(Int32)));
       dt.Columns.Add(new DataColumn("StringValue",
 typeof(string)));
       dt.Columns.Add(new DataColumn("DateTimeValue",
 typeof(string)));
       dt.Columns.Add(new DataColumn("BoolValue", typeof(bool)));
 
       for (int i = 0; i < 100; i++) 
       {
          dr = dt.NewRow();
 
          dr[0] = i;
          dr[1] = "Item " + i.ToString();
          dr[2] = DateTime.Now.ToShortDateString();
          dr[3] = (i % 2 != 0) ? true : false;
 
          dt.Rows.Add(dr);
       }
 
       DataView dv = new DataView(dt);
       return dv;
    }
 
    void Page_Load(Object sender, EventArgs e) 
    {
       if (chk1.Checked)
          MyDataGrid.PagerStyle.Mode = PagerMode.NumericPages;
       else 
          MyDataGrid.PagerStyle.Mode = PagerMode.NextPrev;
 
       BindGrid();
    }
 
    void MyDataGrid_Page(Object sender, DataGridPageChangedEventArgs
 e) 
    {
       MyDataGrid.CurrentPageIndex = e.NewPageIndex;
       BindGrid();
    }
 
    void BindGrid() 
    {
       MyDataGrid.DataSource = CreateDataSource();
       MyDataGrid.DataBind();
       ShowStats();
    }
 
    void ShowStats() 
    {
       lblEnabled.Text = "AllowPaging is " + MyDataGrid.AllowPaging;
       lblCurrentIndex.Text = "CurrentPageIndex is " + MyDataGrid.CurrentPageIndex;
       lblPageCount.Text = "PageCount is " + MyDataGrid.PageCount;
       lblPageSize.Text = "PageSize is " + MyDataGrid.PageSize;
    }
 
 
 </script>
 
 <body>
 
    <h3>DataGrid Paging Example</h3>
 
    <form runat=server>
 
       <asp:DataGrid id="MyDataGrid" runat="server"
            AllowPaging="True"
            PageSize="10"
            OnPageIndexChanged="MyDataGrid_Page"
            BorderColor="black"
            BorderWidth="1"
            GridLines="Both"
            CellPadding="3"
            CellSpacing="0"
            Font-Name="Verdana"
            Font-Size="8pt">

            <PagerStyle Mode="NumericPages"
                        HorizontalAlign="Right">
            </PagerStyle>


            <HeaderStyle BackColor="#aaaadd">
            </HeaderStyle>

            <AlternatingItemStyle BackColor="#eeeeee">
            </AlternatingItemStyle>

       </asp:DataGrid>
 
       <p>
 
       <asp:Checkbox id="chk1" runat="server"
            Text="Show numeric page navigation buttons"
            Font-Name="Verdana"
            Font-Size="8pt"
            AutoPostBack="true"/>
 
       <p>
 
       <table bgcolor="#eeeeee" cellpadding="6">
          <tr>
             <td nowrap>
                
 
                   <asp:Label id="lblEnabled" 
                        runat="server"/><br>
                   <asp:Label id="lblCurrentIndex" 
                        runat="server"/><br>
                   <asp:Label id="lblPageCount" 
                        runat="server"/><br>
                   <asp:Label id="lblPageSize" 
                        runat="server"/><br>
 
                
             </td>
          </tr>
       </table>
 
    </form>
 
 </body>
 </html>
   
<%@ Page Language="JScript" AutoEventWireup="True" %>
<%@ Import Namespace="System.Data" %>
 
 <html>
 <script language="JScript" runat="server">
 
    function CreateDataSource() : ICollection 
    {
      var dt : DataTable = new DataTable();
      var dr : DataRow;
 
      dt.Columns.Add(new DataColumn("IntegerValue",
 Int32));
      dt.Columns.Add(new DataColumn("StringValue", System.String));
      dt.Columns.Add(new DataColumn("CurrencyValue",
 double));
 
      for (var i : int =
 0; i < 100; i++) 
      {
         dr = dt.NewRow();
 
         dr[0] = i;
         dr[1] = "Item " + i.ToString();
         dr[2] = 1.23 * (i+1); 
         dt.Rows.Add(dr);
      }
 
      var dv : DataView = new DataView(dt);
      return dv;
    }
 
    function Page_Load(sender, e : EventArgs) 
    {
       if (chk1.Checked)
          MyDataGrid.PagerStyle.Mode = PagerMode.NumericPages;
       else 
          MyDataGrid.PagerStyle.Mode = PagerMode.NextPrev;
 
       BindGrid();
    }
 
    function MyDataGrid_Page(sender, e : DataGridPageChangedEventArgs)
 
    {
       MyDataGrid.CurrentPageIndex = e.NewPageIndex;
       BindGrid();
    }
 
    function BindGrid() 
    {
       MyDataGrid.DataSource = CreateDataSource();
       MyDataGrid.DataBind();
       ShowStats();
    }
 
    function ShowStats() 
    {
       lblEnabled.Text = "AllowPaging is " + MyDataGrid.AllowPaging;
       lblCurrentIndex.Text = "CurrentPageIndex is " + MyDataGrid.CurrentPageIndex;
       lblPageCount.Text = "PageCount is " + MyDataGrid.PageCount;
       lblPageSize.Text = "PageSize is " + MyDataGrid.PageSize;
    }
 
 
 </script>
 
 <body>
 
    <h3>DataGrid Paging Example</h3>
 
    <form runat=server>
 
       <asp:DataGrid id="MyDataGrid" runat="server"
            AllowPaging="True"
            PageSize="10"
            OnPageIndexChanged="MyDataGrid_Page"
            BorderColor="black"
            BorderWidth="1"
            GridLines="Both"
            CellPadding="3"
            CellSpacing="0"
            Font-Name="Verdana"
            Font-Size="8pt">

            <PagerStyle Mode="NumericPages"
                        HorizontalAlign="Right">
            </PagerStyle>


            <HeaderStyle BackColor="#aaaadd">
            </HeaderStyle>

            <AlternatingItemStyle BackColor="#eeeeee">
            </AlternatingItemStyle>

       </asp:DataGrid>
 
       <p>
 
       <asp:Checkbox id="chk1" runat="server"
            Text="Show numeric page navigation buttons"
            Font-Name="Verdana"
            Font-Size="8pt"
            AutoPostBack="true"/>
 
       <p>
 
       <table bgcolor="#eeeeee" cellpadding="6">
          <tr>
             <td nowrap>
                
 
                   <asp:Label id="lblEnabled" 
                        runat="server"/><br>
                   <asp:Label id="lblCurrentIndex" 
                        runat="server"/><br>
                   <asp:Label id="lblPageCount" 
                        runat="server"/><br>
                   <asp:Label id="lblPageSize" 
                        runat="server"/><br>
 
                
             </td>
          </tr>
       </table>
 
    </form>
 
 </body>
 </html>
   
<%@ Page Language="VB" AutoEventWireup="True"
 %>
<%@ Import Namespace="System.Data"
 %>
 
<html>
   <script runat="server">
 
      Function CreateDataSource() As ICollection
 

         ' Create sample data for the DataGrid control.
         Dim dt As DataTable = New
 DataTable()
         Dim dr As DataRow
 
         ' Define the columns of the table.
         dt.Columns.Add(new DataColumn("IntegerValue",
 GetType(Int32)))
         dt.Columns.Add(new DataColumn("StringValue",
 GetType(String)))
         dt.Columns.Add(new DataColumn("CurrencyValue",
 GetType(Double)))
 
         ' Populate the table with sample values.
         Dim i As Integer

         For i=0 To 100

            dr = dt.NewRow()
 
            dr(0) = i
            dr(1) = "Item " & i.ToString()
            dr(2) = 1.23 * (i + 1)
 
            dt.Rows.Add(dr)
         
         Next i
 
         Dim dv As DataView = New
 DataView(dt)

         Return dv
      
      End Function
 
      Sub Page_Load(sender As Object,
 e As EventArgs)
 
         ' Load sample data only once, when the page is first loaded.
         If Not IsPostBack Then
 
         
            ItemsGrid.DataSource = CreateDataSource()
            ItemsGrid.DataBind()
         
         End If

      End Sub

      Sub Selection_Change(sender As Object,
 e As EventArgs)

         ' Set the page size for the DataGrid control based on the
         ' user's selection.
         ItemsGrid.PageSize = Convert.ToInt32(PageSizeList.SelectedItem.Text)

         ' Rebind the data to refresh the DataGrid control. 
         ItemsGrid.DataSource = CreateDataSource()
         ItemsGrid.DataBind()

      End Sub

      Sub Grid_Change(sender As Object,
 e As DataGridPageChangedEventArgs) 
 
         ' For the DataGrid control to navigate to the correct page
 when
         ' paging is allowed, the CurrentPageIndex property must be
         ' updated programmatically. This process is usually accomplished
         ' in the event-handling method for the PageIndexChanged event.

         ' Set CurrentPageIndex to the page the user clicked.
         ItemsGrid.CurrentPageIndex = e.NewPageIndex

         ' Rebind the data to refresh the DataGrid control. 
         ItemsGrid.DataSource = CreateDataSource()
         ItemsGrid.DataBind()
      
      End Sub

   </script>
 
<body>
 
   <form runat=server>
 
      <h3>DataGrid PageSize Example</h3>

      Select the number of items to
 display on a page.

      <br><br>
 
      <b>Product List</b>
 
      <asp:DataGrid id="ItemsGrid"
           BorderColor="black"
           BorderWidth="1"
           CellPadding="3"
           AutoGenerateColumns="False"
           PageSize="10"
           AllowPaging="True"
           OnPageIndexChanged="Grid_Change"
           runat="server">

         <HeaderStyle BackColor="#00aaaa">
         </HeaderStyle>

         <Columns>

            <asp:BoundColumn DataField="IntegerValue"
 
                 SortExpression="IntegerValue"
                 HeaderText="Item"/>

            <asp:BoundColumn DataField="StringValue"
                 SortExpression="StringValue" 
                 HeaderText="Description"/>

            <asp:BoundColumn DataField="CurrencyValue"
 
                 HeaderText="Price"
                 SortExpression="CurrencyValue"
                 DataFormatString="{0:c}">

               <ItemStyle HorizontalAlign="Right">
               </ItemStyle>

            </asp:BoundColumn>

         </Columns> 
 
      </asp:DataGrid>

      <hr>

      <table cellpadding="5">

         <tr>

            <td>

               <asp:Label id="Message" 
                    Text="Page size:"
                    runat="server"/>

            </td>

         </tr>

         <tr>

            <td>

               <asp:DropDownList id="PageSizeList"
                    AutoPostBack="True"
                    OnSelectedIndexChanged="Selection_Change"
                    runat="server">

                  <asp:ListItem> 5 </asp:ListItem>
                  <asp:ListItem Selected="True">
 10 </asp:ListItem>
                  <asp:ListItem> 15 </asp:ListItem>
                  <asp:ListItem> 20 </asp:ListItem>

               </asp:DropDownList>

            </td>

         </tr>

      </table>
 
   </form>
 
</body>
</html>

<%@ Page Language="C#" AutoEventWireup="True" %>
<%@ Import Namespace="System.Data" %>
 
<html>
   <script runat="server">
 
      ICollection CreateDataSource()
      {

         // Create sample data for the DataGrid control.
         DataTable dt = new DataTable();
         DataRow dr;
 
         // Define the columns of the table.
         dt.Columns.Add(new DataColumn("IntegerValue",
 typeof(Int32)));
         dt.Columns.Add(new DataColumn("StringValue",
 typeof(String)));
         dt.Columns.Add(new DataColumn("CurrencyValue",
 typeof(Double)));
 
         // Populate the table with sample values.
         for (int i=0; i<=100; i++) 
         {

            dr = dt.NewRow();
 
            dr[0] = i;
            dr[1] = "Item " + i.ToString();
            dr[2] = 1.23 * (i + 1);
 
            dt.Rows.Add(dr);
         
         }
 
         DataView dv = new DataView(dt);

         return dv;
      
      }
 
      void Page_Load(Object sender, EventArgs e)
      { 
 
         // Load sample data only once, when the page is first loaded.
         if (!IsPostBack)
         { 
         
            ItemsGrid.DataSource = CreateDataSource();
            ItemsGrid.DataBind();
         
         }

      }

      void Selection_Change(Object sender, EventArgs e)
      {

         // Set the page size for the DataGrid control based on the
         // user's selection.
         ItemsGrid.PageSize = 
             Convert.ToInt32(PageSizeList.SelectedItem.Text);

         // Rebind the data to refresh the DataGrid control. 
         ItemsGrid.DataSource = CreateDataSource();
         ItemsGrid.DataBind();

      }

      void Grid_Change(Object sender, DataGridPageChangedEventArgs
 e) 
      {
 
         // For the DataGrid control to navigate to the correct page
 when
         // paging is allowed, the CurrentPageIndex property must be
         // updated programmatically. This process is usually accomplished
         // in the event-handling method for the PageIndexChanged event.

         // Set CurrentPageIndex to the page the user clicked.
         ItemsGrid.CurrentPageIndex = e.NewPageIndex;

         // Rebind the data to refresh the DataGrid control. 
         ItemsGrid.DataSource = CreateDataSource();
         ItemsGrid.DataBind();
      
      }

   </script>
 
<body>
 
   <form runat=server>
 
      <h3>DataGrid PageSize Example</h3>

      Select the number of items to display on a page.

      <br><br>
 
      <b>Product List</b>
 
      <asp:DataGrid id="ItemsGrid"
           BorderColor="black"
           BorderWidth="1"
           CellPadding="3"
           AutoGenerateColumns="False"
           PageSize="10"
           AllowPaging="True"
           OnPageIndexChanged="Grid_Change"
           runat="server">

         <HeaderStyle BackColor="#00aaaa">
         </HeaderStyle>

         <Columns>

            <asp:BoundColumn DataField="IntegerValue" 
                 SortExpression="IntegerValue"
                 HeaderText="Item"/>

            <asp:BoundColumn DataField="StringValue"
                 SortExpression="StringValue" 
                 HeaderText="Description"/>

            <asp:BoundColumn DataField="CurrencyValue" 
                 HeaderText="Price"
                 SortExpression="CurrencyValue"
                 DataFormatString="{0:c}">

               <ItemStyle HorizontalAlign="Right">
               </ItemStyle>

            </asp:BoundColumn>

         </Columns> 
 
      </asp:DataGrid>

      <hr>

      <table cellpadding="5">

         <tr>

            <td>

               <asp:Label id="Message" 
                    Text="Page size:"
                    runat="server"/>

            </td>

         </tr>

         <tr>

            <td>

               <asp:DropDownList id="PageSizeList"
                    AutoPostBack="True"
                    OnSelectedIndexChanged="Selection_Change"
                    runat="server">

                  <asp:ListItem> 5 </asp:ListItem>
                  <asp:ListItem Selected="True"> 10 </asp:ListItem>
                  <asp:ListItem> 15 </asp:ListItem>
                  <asp:ListItem> 20 </asp:ListItem>

               </asp:DropDownList>

            </td>

         </tr>

      </table>
 
   </form>
 
</body>
</html>

プラットフォームプラットフォーム
バージョン情報バージョン情報
参照参照
関連項目
DataGrid クラス
DataGrid メンバ
System.Web.UI.WebControls 名前空間
DataGrid.AllowPaging プロパティ
DataGrid.AllowCustomPaging プロパティ
PageIndexChanged


このページでは「.NET Framework クラス ライブラリ リファレンス」からDataGrid.PageSize プロパティを検索した結果を表示しています。
Weblioに収録されているすべての辞書からDataGrid.PageSize プロパティを検索する場合は、下記のリンクをクリックしてください。
 全ての辞書からDataGrid.PageSize プロパティ を検索

英和和英テキスト翻訳>> Weblio翻訳
英語⇒日本語日本語⇒英語
  

辞書ショートカット

すべての辞書の索引

「DataGrid.PageSize プロパティ」の関連用語

DataGrid.PageSize プロパティのお隣キーワード
検索ランキング

   

英語⇒日本語
日本語⇒英語
   



DataGrid.PageSize プロパティのページの著作権
Weblio 辞書 情報提供元は 参加元一覧 にて確認できます。

   
日本マイクロソフト株式会社日本マイクロソフト株式会社
© 2025 Microsoft.All rights reserved.

©2025 GRAS Group, Inc.RSS