CreateParameter Method (UniCommand)

In This Topic

Creates a new instance of a UniParameter object.

Syntax

Visual Basic
C#

'Declaration
 
Public Shadows Function CreateParameter() As UniParameter

public new UniParameter CreateParameter()

Return Value

A UniParameter object.

Remarks

This method is a strongly-typed version of System.Data.IDbCommand.CreateParameter. See UniParameter 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(UniConnection myConnection)
{
  UniCommand myCommand = new UniCommand("SELECT * FROM Test.Dept WHERE DeptNo=:Deptno",myConnection);
  UniParameter myParam = myCommand.CreateParameter();
  myParam.UniDbType = Devart.Data.Universal.UniDbType.Int;
  myParam.Value = 10;
  myParam.ParameterName = "Deptno";
  myCommand.Parameters.Add(myParam);
  myConnection.Open();
  UniDataReader 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 UniConnection)
  Dim myCommand As New UniCommand("SELECT * FROM Test.Dept WHERE DeptNo=:Deptno", myConnection)
  Dim myParam As UniParameter = myCommand.CreateParameter()
  myParam.UniDbType = Devart.Data.Universal.UniDbType.Int
  myParam.Value = 10
  myParam.ParameterName = "Deptno"
  myCommand.Parameters.Add(myParam)
  myConnection.Open()
  Dim myReader As UniDataReader = 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

Reference

UniCommand Class
UniCommand Members
Parameters Property
UniParameter Class

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