dotConnect for PostgreSQL Documentation
Devart.Data.PostgreSql Namespace / PgSqlCommand Class / CreateParameter Method
Example

CreateParameter Method (PgSqlCommand)
Creates a new instance of a PgSqlParameter object.
Creates a new instance of a PgSqlParameter object.
Syntax
'Declaration
 
Public Shadows Function CreateParameter() As PgSqlParameter
 

Return Value

A PgSqlParameter object.
Remarks
This method is a strongly-typed version of System.Data.IDbCommand.CreateParameter. See PgSqlParameter to find out more ways to create a parameter.
Example
This sample shows how to create a parameter using CreateParameter function.
Public void CreateParam(PgSqlConnection pgConnection)
{
  PgSqlCommand pgCommand = new PgSqlCommand("SELECT * FROM Test.Dept WHERE DeptNo=:Deptno",pgConnection);
  PgSqlParameter myParam = pgCommand.CreateParameter();
  myParam.PgSqlType = Devart.Data.PostgreSql.PgSqlType.Int;
  myParam.Value = 10;
  myParam.ParameterName = "Deptno";
  pgCommand.Parameters.Add(myParam);
  pgConnection.Open();
  PgSqlDataReader pgReader = null; 
  try
  {
    pgReader = pgCommand.ExecuteReader(); 
    while (pgReader.Read())
    {
      Console.WriteLine(pgReader.GetInt32(0) + ", " + pgReader.GetString(1) + ", " + pgReader.GetString(2));
    }
  }
  finally
  {
    pgReader.Close();
    pgConnection.Close();
  }
}
Public Sub CreateParam(ByVal pgConnection As PgSqlConnection)
  Dim pgCommand As New PgSqlCommand("SELECT * FROM Test.Dept WHERE DeptNo=:Deptno", pgConnection)
  Dim myParam As PgSqlParameter = pgCommand.CreateParameter()
  myParam.PgSqlType = Devart.Data.PostgreSql.PgSqlType.Int
  myParam.Value = 10
  myParam.ParameterName = "Deptno"
  pgCommand.Parameters.Add(myParam)
  pgConnection.Open()
  Dim pgReader As PgSqlDataReader = Nothing
  Try
    pgReader = pgCommand.ExecuteReader()
    While pgReader.Read()
      Console.WriteLine(pgReader.GetInt32(0).ToString() + ", " _
        + pgReader.GetString(1) + ", " _
        + pgReader.GetString(2))
    End While
  Finally
    pgReader.Close()
    pgConnection.Close()
  End Try
End Sub
Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

See Also