CreateParameter Method (SqlCommand)

In This Topic

Creates a new instance of a SqlParameter object.

Syntax

Visual Basic
C#

'Declaration
 
Public Shadows Function CreateParameter() As SqlParameter

public new SqlParameter CreateParameter()

Return Value

A SqlParameter object.

Remarks

This method is a strongly-typed version of System.Data.IDbCommand.CreateParameter. See SqlParameter 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(SqlConnection myConnection)
{
  SqlCommand myCommand = new SqlCommand("SELECT * FROM Test.Dept WHERE DeptNo=:Deptno",myConnection);
  SqlParameter myParam = myCommand.CreateParameter();
  myParam.SqlType = Devart.Data.SqlServer.SqlType.Int;
  myParam.Value = 10;
  myParam.ParameterName = "Deptno";
  myCommand.Parameters.Add(myParam);
  myConnection.Open();
  SqlDataReader myReader = null; 
  try
  {
    myReader = myCommand.ExecuteReader(); 
    while (myReader.Read())
    {
      Console.WriteLine(myReader.GetInt32(0) + ", " + myReader.GetString(1) + ", " + myReader.GetString(2));
    }
  }
  finally
  {
    myReader.Close();
    myConnection.Close();
  }
}

Visual Basic

Public Sub CreateParam(ByVal myConnection As SqlConnection)
  Dim myCommand As New SqlCommand("SELECT * FROM Test.Dept WHERE DeptNo=:Deptno", myConnection)
  Dim myParam As SqlParameter = myCommand.CreateParameter()
  myParam.SqlType = Devart.Data.SqlServer.SqlType.Int
  myParam.Value = 10
  myParam.ParameterName = "Deptno"
  myCommand.Parameters.Add(myParam)
  myConnection.Open()
  Dim myReader As SqlDataReader = Nothing
  Try
    myReader = myCommand.ExecuteReader()
    While myReader.Read()
      Console.WriteLine(myReader.GetInt32(0).ToString() + ", " _
        + myReader.GetString(1) + ", " _
        + myReader.GetString(2))
    End While
  Finally
    myReader.Close()
    myConnection.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

SqlCommand Class
SqlCommand Members
Parameters Property
SqlParameter Class

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