OleDbEnumerator.GetElements Method

Definition

Namespace:

System.Data.OleDb

Assembly:

System.Data.OleDb.dll

Package:

System.Data.OleDb v9.0.0-rc.2.24473.5

Retrieves a DataTable that contains information about all visible OLE DB providers.

public:
 System::Data::DataTable ^ GetElements();

public System.Data.DataTable GetElements ();

member this.GetElements : unit -> System.Data.DataTable

Public Function GetElements () As DataTable

Returns

DataTable

A DataTable that contains information about the visible OLE DB providers.

Exceptions

InvalidCastException

The provider does not support ISourcesRowset.

OleDbException

Exception has occurred in the underlying provider.

Examples

The following console application retrieves information about all the visible OLE DB providers and displays the information in the console window.

Imports System.Data  
Imports System.Data.OleDb  

Module Module1  

Sub Main()  
  Dim enumerator As New OleDbEnumerator  
  Dim table As System.Data.DataTable = enumerator.GetElements()  

  DisplayData(table)  

   Console.WriteLine("Press any key to continue.")  
   Console.ReadKey()  
 End Sub  

 Private Sub DisplayData(ByVal table As DataTable)  
   For Each row As DataRow In table.Rows  
     For Each col As DataColumn In table.Columns  
       Console.WriteLine("{0} = {1}", col.ColumnName, row(col))  
     Next  
     Console.WriteLine("==================================")  
   Next  
 End Sub  
End Module  

using System;  
using System.Data;  
using System.Data.OleDb;  

class Program  
{  
 static void Main()  
 {  
   OleDbEnumerator enumerator = new OleDbEnumerator();  
   DataTable table = enumerator.GetElements();  

   DisplayData(table);  

   Console.WriteLine("Press any key to continue.");  
   Console.ReadKey();  
 }  

 static void DisplayData(DataTable table)  
 {  
   foreach (DataRow row in table.Rows)  
   {  
     foreach (DataColumn col in table.Columns)  
     {  
       Console.WriteLine("{0} = {1}", col.ColumnName, row[col]);  
     }  
     Console.WriteLine("==================================");  
   }  
 }  
}  

Remarks

The table that is returned by this method contains the following columns, all of which contain strings:

Column Ordinal	Column	Description
0	SOURCES_NAME	The invariant name of the native OLEDB data source or enumerator.
1	SOURCES_PARSENAME	A human-readable name that can be converted to a moniker by using the native COM interface IParseDisplayName. Corresponds to the SOURCES_PARSENAME column returned by the native OLE DB sources rowset.
2	SOURCES_DESCRIPTION	Description of the native OLE DB data source. Corresponds to the SOURCES_DESCRIPTION column returned by the native OLE DB sources rowset.
3	SOURCES_TYPE	One of the following enumeration members: Binder (0), DataSource_MDP (1), DataSource_TDP (2), Enumerator (3). These correspond to the values returned in the SOURCES_TYPE column of the native OLE DB sources rowset.
4	SOURCES_ISPARENT	Applicable to enumerators only. If true, indicates that the entry applies to the same enumerator on which GetSourcesRowset was called, implying that it is also included in the sub-enumeration. Corresponds to the SOURCES_ISPARENT column of the native OLE DB sources rowset
5	SOURCES_CLSID	A human-readable name, that can be converted to a moniker using the native COM interface IParseDisplayName. Corresponds to the SOURCES_CLSID column returned by the native OLE DB sources rowset.