XmlDataDocument.GetElementFromRow(DataRow) Metoda

Definice

Obor názvů:

System.Xml

Sestavení:

System.Data.Common.dll

Zdroj:

XmlDataDocument.cs

Načte přidruženou XmlElement k zadanému DataRow.

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

Parametry

r

DataRow

XmlElement Přidružená DataRow hodnota, kterou chcete načíst.

Návraty

XmlElement

Obsahující XmlElement reprezentaci zadaného DataRow.

Příklady

Následující příklad načte do objektu DataSetXmlDataDocument a pak vytvoří záznam XmlElement představující první záznam zákazníka.

V příkladu se používá databáze Northwind SQL Server 2000.

#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

Viz také

• DataSet
• DataTable