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ObjectDataSource Web サーバー コントロールの宣言

  • [アーティクル]

更新 : 2007 年 11 月

多階層 Web アプリケーション アーキテクチャ用のカスタムのビジネス オブジェクトによって公開されるデータに、宣言によってデータ バインディングできるようにします。

<asp:ObjectDataSource
    CacheDuration="string|Infinite"
    CacheExpirationPolicy="Absolute|Sliding"
    CacheKeyDependency="string"
    ConflictDetection="OverwriteChanges|CompareAllValues"
    ConvertNullToDBNull="True|False"
    DataObjectTypeName="string"
    DeleteMethod="string"
    EnableCaching="True|False"
    EnablePaging="True|False"
    EnableTheming="True|False"
    EnableViewState="True|False"
    FilterExpression="string"
    ID="string"
    InsertMethod="string"
    MaximumRowsParameterName="string"
    OldValuesParameterFormatString="string"
     OnDataBinding="DataBinding event handler"
    OnDeleted="Deleted event handler"
    OnDeleting="Deleting event handler"
    OnDisposed="Disposed event handler"
    OnFiltering="Filtering event handler"
    OnInit="Init event handler"
    OnInserted="Inserted event handler"
    OnInserting="Inserting event handler"
    OnLoad="Load event handler"
    OnObjectCreated="ObjectCreated event handler"
    OnObjectCreating="ObjectCreating event handler"
    OnObjectDisposing="ObjectDisposing event handler"
    OnPreRender="PreRender event handler"
    OnSelected="Selected event handler"
    OnSelecting="Selecting event handler"
    OnUnload="Unload event handler"
    OnUpdated="Updated event handler"
    OnUpdating="Updating event handler"
    runat="server"
    SelectCountMethod="string"
    SelectMethod="string"
    SkinID="string"
    SortParameterName="string"
    SqlCacheDependency="string"
    StartRowIndexParameterName="string"
    TypeName="string"
    UpdateMethod="string"
    Visible="True|False"
>
        <DeleteParameters>
                <asp:ControlParameter
                    ControlID="string"
                    ConvertEmptyStringToNull="True|False"
                    DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                    Name="string"
                    PropertyName="string"
                    Size="integer"
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
                <asp:CookieParameter
                    ConvertEmptyStringToNull="True|False"
                    CookieName="string"
                    DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                    Name="string"
                    Size="integer"
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
                <asp:FormParameter
                    ConvertEmptyStringToNull="True|False"
                                DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                    FormField="string"
                    Name="string"
                    Size="integer"
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
                <asp:Parameter
                    ConvertEmptyStringToNull="True|False"
                    DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                    Name="string"
                    Size="integer"
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|
                                 Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
                <asp:ProfileParameter
                    ConvertEmptyStringToNull="True|False"
                    DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                    Name="string"
                    PropertyName="string"
                    Size="integer"
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
                <asp:QueryStringParameter
                    ConvertEmptyStringToNull="True|False"
                    DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                    Name="string"
                    QueryStringField="string"
                    Size="integer"
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
                <asp:SessionParameter
                     ConvertEmptyStringToNull="True|False"
                    DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                    Name="string"
                    SessionField="string"
                    Size="integer"
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
            </DeleteParameters>
        <FilterParameters>
                <asp:ControlParameter
                    ControlID="string"
                    ConvertEmptyStringToNull="True|False"
                    DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                    Name="string"
                    PropertyName="string"
                    Size="integer"
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
                <asp:CookieParameter
                    ConvertEmptyStringToNull="True|False"
                    CookieName="string"
                            DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                    Name="string"
                    Size="integer"
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
                <asp:FormParameter
                    ConvertEmptyStringToNull="True|False"
                    DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                    FormField="string"
                    Name="string"
                    Size="integer"
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
                <asp:Parameter
                    ConvertEmptyStringToNull="True|False"
                    DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                    Name="string"
                    Size="integer"
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
                <asp:ProfileParameter
                    ConvertEmptyStringToNull="True|False"
                          DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                    Name="string"
                    PropertyName="string"
                    Size="integer"
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
                <asp:QueryStringParameter
                    ConvertEmptyStringToNull="True|False"
                    DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                    Name="string"
                    QueryStringField="string"
                    Size="integer"
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
                <asp:SessionParameter
                     ConvertEmptyStringToNull="True|False"
                    DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                    Name="string"
                    SessionField="string"
                                Size="integer"
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
        </FilterParameters>
        <InsertParameters>
                <asp:ControlParameter
                    ControlID="string"
                    ConvertEmptyStringToNull="True|False"
                    DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                    Name="string"
                    PropertyName="string"
                    Size="integer"
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
                <asp:CookieParameter
                    ConvertEmptyStringToNull="True|False"
                    CookieName="string"
                                    DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                    Name="string"
                    Size="integer"
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
                <asp:FormParameter
                    ConvertEmptyStringToNull="True|False"
                                DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                    FormField="string"
                    Name="string"
                    Size="integer"
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
                <asp:Parameter
                    ConvertEmptyStringToNull="True|False"
                    DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                    Name="string"
                    Size="integer"
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
                <asp:ProfileParameter
                    ConvertEmptyStringToNull="True|False"
                    DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                    Name="string"
                    PropertyName="string"
                    Size="integer"
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
                <asp:QueryStringParameter
                    ConvertEmptyStringToNull="True|False"
                    DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                    Name="string"
                    QueryStringField="string"
                    Size="integer"
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
                    <asp:SessionParameter
                    ConvertEmptyStringToNull="True|False"
                    DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                    Name="string"
                                       SessionField="string"
                    Size="integer"
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
        </InsertParameters>
        <SelectParameters>
                <asp:ControlParameter
                    ControlID="string"
                    ConvertEmptyStringToNull="True|False"
                    DefaultValue="string"
                         Direction="Input|Output|InputOutput|ReturnValue"
                    Name="string"
                    PropertyName="string"
                    Size="integer"
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
                <asp:CookieParameter
                    ConvertEmptyStringToNull="True|False"
                              CookieName="string"
                    DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                    Name="string"
                    Size="integer"
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
                <asp:FormParameter
                    ConvertEmptyStringToNull="True|False"
                    DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                    FormField="string"
                    Name="string"
                    Size="integer"
                                  Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
                <asp:Parameter
                    ConvertEmptyStringToNull="True|False"
                    DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                    Name="string"
                    Size="integer"
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
                <asp:ProfileParameter
                    ConvertEmptyStringToNull="True|False"
                    DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                    Name="string"
                    PropertyName="string"
                    Size="integer"
                            Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
                <asp:QueryStringParameter
                    ConvertEmptyStringToNull="True|False"
                    DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                    Name="string"
                    QueryStringField="string"
                           Size="integer"
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
                <asp:SessionParameter
                    ConvertEmptyStringToNull="True|False"
                    DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                    Name="string"
                                   SessionField="string"
                    Size="integer"
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
        </SelectParameters>
        <UpdateParameters>
                <asp:ControlParameter
                    ControlID="string"
                    ConvertEmptyStringToNull="True|False"
                    DefaultValue="string"
                     Direction="Input|Output|InputOutput|ReturnValue"
                    Name="string"
                    PropertyName="string"
                    Size="integer"
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|
                                   Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
                <asp:CookieParameter
                    ConvertEmptyStringToNull="True|False"
                    CookieName="string"
                    DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                    Name="string"
                    Size="integer"
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
                <asp:FormParameter
                    ConvertEmptyStringToNull="True|False"
                    DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                    FormField="string"
                    Name="string"
                    Size="integer"
                                  Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
                <asp:Parameter
                    ConvertEmptyStringToNull="True|False"
                    DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                    Name="string"
                    Size="integer"
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
                <asp:ProfileParameter
                    ConvertEmptyStringToNull="True|False"
                    DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                    Name="string"
                    PropertyName="string"
                               Size="integer"
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
                <asp:QueryStringParameter
                    ConvertEmptyStringToNull="True|False"
                    DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                    Name="string"
                               QueryStringField="string"
                    Size="integer"
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
                <asp:SessionParameter
                    ConvertEmptyStringToNull="True|False"
                    DefaultValue="string"
                    Direction="Input|Output|InputOutput|ReturnValue"
                                      Name="string"
                    SessionField="string"
                    Size="integer"
                    Type="Empty|Object|DBNull|Boolean|Char|SByte|
                        Byte|Int16|UInt16|Int32|UInt32|Int64|UInt64|
                        Single|Double|Decimal|DateTime|String"
                />
        </UpdateParameters>
</asp:ObjectDataSource>

解説

ObjectDataSource コントロールは、データ バインディング対応の中間層オブジェクト、またはデータ バインド コントロールに対するデータ インターフェイス オブジェクトを表す ASP.NET のデータ ソース コントロールです。ObjectDataSource コントロールをデータ バインド コントロールと共に使用すると、コードをほとんど、またはまったく使用せずに、データを Web ページ上に表示したり、編集したりできます。また、データを並べ替えることもできます。

ObjectDataSource コントロールの使い方の詳細については、「ObjectDataSource Web サーバー コントロールの概要」を参照してください。

使用例

Web フォーム ページで ObjectDataSource コントロールを使用して、GridView コントロールにデータを表示する方法を、次のコード例に示します。ObjectDataSource は、ビジネス オブジェクトの部分修飾クラス名または完全修飾クラス名を TypeName プロパティによって識別し、さらにデータを取得するために呼び出されるビジネス オブジェクトのメソッドを SelectMethod プロパティによって識別します。実行時には、リフレクションを使用してオブジェクトが作成され、メソッドが呼び出されます。GridView コントロールは、SelectMethod によって返される IEnumerable コレクションを列挙し、そのデータを表示します。

この例で使用できる中間層ビジネス オブジェクトの例については、ObjectDataSource クラスの概要を参照してください。

<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.VB" Assembly="Samples.AspNet.VB" %>
<%@ Page language="vb" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
  <head>
    <title>ObjectDataSource - Visual Basic Example</title>
  </head>
  <body>
    <form id="Form1" method="post" runat="server">

        <asp:gridview
          id="GridView1"
          runat="server"
          datasourceid="ObjectDataSource1" />

        <asp:objectdatasource
          id="ObjectDataSource1"
          runat="server"
          selectmethod="GetAllEmployees"
          typename="Samples.AspNet.VB.EmployeeLogic" />

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

<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.CS" Assembly="Samples.AspNet.CS" %>
<%@ Page language="c#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
  <head>
    <title>ObjectDataSource - C# Example</title>
  </head>
  <body>
    <form id="Form1" method="post" runat="server">

        <asp:gridview
          id="GridView1"
          runat="server"
          datasourceid="ObjectDataSource1" />

        <asp:objectdatasource
          id="ObjectDataSource1"
          runat="server"
          selectmethod="GetAllEmployees"
          typename="Samples.AspNet.CS.EmployeeLogic" />

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

<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.JSL" Assembly="Samples.AspNet.JSL" %>
<%@ Page language="VJ#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
  <head>
    <title>ObjectDataSource - VJ# Example</title>
  </head>
  <body>
    <form id="Form1" method="post" runat="server">

        <asp:gridview
          id="GridView1"
          runat="server"
          datasourceid="ObjectDataSource1" />

        <asp:objectdatasource
          id="ObjectDataSource1"
          runat="server"
          selectmethod="GetAllEmployees"
          typename="Samples.AspNet.JSL.EmployeeLogic" />

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

参照

参照

ObjectDataSource

その他の技術情報

ObjectDataSource Web サーバー コントロール