CreateParameter Method (PgSqlCommand)

In This Topic

Creates a new instance of a PgSqlParameter object.

Syntax

Visual Basic
C#

'Declaration
 
Public Shadows Function CreateParameter() As PgSqlParameter

public new PgSqlParameter CreateParameter()

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.

csharp

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();
  }
}

Visual Basic

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

Reference

PgSqlCommand Class
PgSqlCommand Members
Parameters Property
PgSqlParameter Class

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