XmlDataDocument.GetElementFromRow メソッド

.NET Framework クラス ライブラリ リファレンス

XmlDataDocument.GetElementFromRow メソッド

指定した DataRow に関連付けられている XmlElement を取得します。

名前空間: System.Xml
アセンブリ: System.Data (system.data.dll 内)
構文

Visual Basic (宣言)

Public Function GetElementFromRow ( _
    r As DataRow _
) As XmlElement

Visual Basic (使用法)

Dim instance As XmlDataDocument
Dim r As DataRow
Dim returnValue As XmlElement

returnValue = instance.GetElementFromRow(r)

C#

public XmlElement GetElementFromRow (
    DataRow r
)

C++

public:
XmlElement^ GetElementFromRow (
    DataRow^ r
)

J#

public XmlElement GetElementFromRow (
    DataRow r
)

JScript

public function GetElementFromRow (
    r : DataRow
) : XmlElement

パラメータ

r

取得する対象の、関連付けられた XmlElement を持つ DataRow。

戻り値
指定した DataRow の表現を格納している XmlElement。

使用例

DataSet を XmlDataDocument に読み込み、最初の顧客レコードを表す XmlElement を作成する例を次に示します。

この例では、SQL Server 2000 Northwind データベースを使用しています。

Visual Basic

Imports System
Imports System.Xml
Imports System.Data
Imports System.Data.SqlClient
 
 
public class Sample
 
  public shared sub Main()
   
    Dim dsNorthwind as DataSet = new
 DataSet()
 
    'Create the connection string.
    Dim sConnect as String
           
    sConnect="Data Source=localhost;Integrated Security=SSPI;Initial
 Catalog=Northwind"     
          
    'Create a connection object to connect to the northwind db.
    Dim nwconnect as SqlConnection
    nwconnect = new SqlConnection(sConnect)
 
    'Create a command string to select all the customers in the WA region.
    Dim sCommand as String
 = "Select * from Customers where Region='WA'"
 
    'Create an Adapter to load the DataSet.
    Dim myDataAdapter as SqlDataAdapter
    myDataAdapter = new SqlDataAdapter(sCommand, nwconnect)
 
    'Fill the DataSet with the selected records.
    myDataAdapter.Fill(dsNorthwind, "Customers")
 
    'Load the document with the DataSet.
    Dim doc as XmlDataDocument = new
 XmlDataDocument(dsNorthwind)  
 
    'Create an element representing the first customer record.
    Dim row as DataRow = doc.DataSet.Tables.Item(0).Rows.Item(0)
    Dim elem as XmlElement = doc.GetElementFromRow(row)
    Console.WriteLine(elem.OuterXml)
 
  end sub
end class

C#

using System;
using System.Data;
using System.Xml;
using System.Data.SqlClient;

public class Sample
{
  public static void Main()
  {
     DataSet dsNorthwind = new DataSet();

     //Create the connection string           
     String sConnect;
     sConnect="Data Source=localhost;Integrated Security=SSPI;Initial Catalog=Northwind";
     
         
     //Create a connection object to connect to the northwind db.
     SqlConnection nwconnect = new SqlConnection(sConnect);

     //Create a command string to select all the customers in the WA
 region.
     String sCommand = "Select * from Customers where Region='WA'";

     //Create an adapter to load the DataSet.
     SqlDataAdapter myDataAdapter = new SqlDataAdapter(sCommand,
 nwconnect);

     //Fill the DataSet with the selected records.
     myDataAdapter.Fill(dsNorthwind,"Customers");

     //Load the document with the DataSet.
     XmlDataDocument doc = new XmlDataDocument(dsNorthwind); 
  

     //Create an element representing the first customer record.
     DataRow row = doc.DataSet.Tables[0].Rows[0];
     XmlElement elem = doc.GetElementFromRow(row);
     Console.WriteLine(elem.OuterXml);    
  }
}

C++

#using <System.Xml.dll>
#using <System.Transactions.dll>
#using <System.EnterpriseServices.dll>
#using <System.dll>
#using <System.Data.dll>

using namespace System;
using namespace System::Data;
using namespace System::Xml;
using namespace System::Data::SqlClient;

int main()
{
   DataSet^ dsNorthwind = gcnew DataSet;
   
   //Create the connection string           
   String^ sConnect;
   sConnect = "Data Source=localhost;Integrated Security=SSPI;Initial Catalog=Northwind";
   
   //Create a connection object to connect to the northwind db.
   SqlConnection^ nwconnect = gcnew SqlConnection( sConnect );
   
   //Create a command string to select all the customers in the WA region.
   String^ sCommand = "Select * from Customers where Region='WA'";
   
   //Create an adapter to load the DataSet.
   SqlDataAdapter^ myDataAdapter = gcnew SqlDataAdapter( sCommand,nwconnect );
   
   //Fill the DataSet with the selected records.
   myDataAdapter->Fill( dsNorthwind, "Customers" );
   
   //Load the document with the DataSet.
   XmlDataDocument^ doc = gcnew XmlDataDocument( dsNorthwind );
   
   //Create an element representing the first customer record.
   DataRow^ row = doc->DataSet->Tables[ 0 ]->Rows[ 0 ];
   XmlElement^ elem = doc->GetElementFromRow( row );
   Console::WriteLine( elem->OuterXml );
}

J#

import System.*;
import System.Data.*;
import System.Xml.*;
import System.Data.SqlClient.*;

public class Sample
{
    public static void main(String[]
 args)
    {
        DataSet dsNorthwind = new DataSet();

        //Create the connection string           
        String sConnect;
        sConnect = "Data Source=localhost;Integrated Security=SSPI;"
            + "Initial Catalog=Northwind";

        //Create a connection object to connect to the northwind db.
        SqlConnection nwConnect = new SqlConnection(sConnect);

        //Create a command string to select all the customers in the WA
 region.
        String sCommand = "Select * from Customers where Region='WA'";

        //Create an adapter to load the DataSet.
        SqlDataAdapter myDataAdapter = new SqlDataAdapter(sCommand,
 nwConnect);

        //Fill the DataSet with the selected records.
        myDataAdapter.Fill(dsNorthwind, "Customers");

        //Load the document with the DataSet.
        XmlDataDocument doc = new XmlDataDocument(dsNorthwind);

        //Create an element representing the first customer record.
        DataRow row = 
            doc.get_DataSet().get_Tables().get_Item(0).get_Rows().get_Item(0);
        XmlElement elem = doc.GetElementFromRow(row);
        Console.WriteLine(elem.get_OuterXml());
    } //main
} //Sample

プラットフォーム

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

開発プラットフォームの中には、.NET Framework によってサポートされていないバージョンがあります。サポートされているバージョンについては、「システム要件」を参照してください。

バージョン情報

.NET Framework
サポート対象 : 2.0、1.1、1.0

参照

関連項目
XmlDataDocument クラス
XmlDataDocument メンバ
System.Xml 名前空間
DataSet
DataTable