IDataRecord

IDataRecord

System.Data (system.data.dll) interface

This interface provides access to column values when you use a data reader. You can retrieve a value from a column using the indexer for IDataRecord with the column name or index. Alternatively, you can use one of the typed accessor methods to retrieve a column value by index and convert it to the specified type in one step. For example, GetInt32( ) retrieves the specified column value and casts it to the System.Int32 type. Provider-specific data readers add methods that return data using source-specific data types. You can use the FieldCount property to determine how many columns are in a table. However, if you aren't positioned on a record (for example, you havn't called IDataReader.Read( ) ), this property returns 0.

 public interface  IDataRecord  {  // Public Instance Properties  public int  FieldCount  {get; }     public object  this[string    name    ]  {get; }     public object  this[int    i    ]  {get; }  // Public Instance Methods  public bool  GetBoolean  ( int   i   );      public byte  GetByte  ( int   i   );      public long  GetBytes  (int   i   , long   fieldOffset   , byte[ ]   buffer   , int   bufferoffset   , int   length   );    public char  GetChar  ( int   i   );      public long  GetChars  (int   i   , long   fieldoffset   , char[ ]   buffer   , int   bufferoffset   , int   length   );    public IDataReader  GetData  ( int   i   );      public string  GetDataTypeName  ( int   i   );      public DateTime  GetDateTime  ( int   i   );      public decimal  GetDecimal  ( int   i   );      public double  GetDouble  ( int   i   );      public Type  GetFieldType  ( int   i   );      public float  GetFloat  ( int   i   );      public Guid  GetGuid  ( int   i   );      public short  GetInt16  ( int   i   );      public int  GetInt32  ( int   i   );      public long  GetInt64  ( int   i   );      public string  GetName  ( int   i   );      public int  GetOrdinal  ( string   name   );      public string  GetString  ( int   i   );      public object  GetValue  ( int   i   );      public int  GetValues  ( object[ ]   values   );      public bool  IsDBNull  ( int   i   );   } 

Implemented By

IDataReader , System.Data.Common.DbDataRecord , System.Data.OleDb.OleDbDataReader , System.Data.OracleClient.OracleDataReader , System.Data.SqlClient.SqlDataReader



ADO. NET in a Nutshell
ADO.NET in a Nutshell
ISBN: 0596003617
EAN: 2147483647
Year: 2005
Pages: 415

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