XmlDataDocument.GetElementFromRow(DataRow) Methode

Definition

Namespace:

System.Xml

Assembly:

System.Data.Common.dll

Quelle:

XmlDataDocument.cs

Ruft das XmlElement ab, das der angegebenen DataRow zugeordnet ist.

public:
 System::Xml::XmlElement ^ GetElementFromRow(System::Data::DataRow ^ r);

public System.Xml.XmlElement GetElementFromRow (System.Data.DataRow r);

member this.GetElementFromRow : System.Data.DataRow -> System.Xml.XmlElement

Public Function GetElementFromRow (r As DataRow) As XmlElement

Parameter

r

DataRow

Das DataRow, dessen zugeordnete XmlElement abgerufen werden soll.

Gibt zurück

XmlElement

Das XmlElement, das eine Darstellung der angegebenen DataRow enthält.

Beispiele

Im folgenden Beispiel wird ein DataSet in ein XmlDataDocument geladen und dann ein erstellt, XmlElement das den ersten Kundendatensatz darstellt.

Im Beispiel wird die SQL Server 2000 Northwind-Datenbank verwendet.

#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 );
}

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);
  }
}

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

Weitere Informationen

• DataSet
• DataTable