IDbCommand.Parameters Property

Definition

Namespace:

System.Data

Assembly:

System.Data.Common.dll

Gets the IDataParameterCollection.

public:
 property System::Data::IDataParameterCollection ^ Parameters { System::Data::IDataParameterCollection ^ get(); };

public System.Data.IDataParameterCollection Parameters { get; }

member this.Parameters : System.Data.IDataParameterCollection

Public ReadOnly Property Parameters As IDataParameterCollection

Property Value

IDataParameterCollection

The parameters of the SQL statement or stored procedure.

Examples

The following example creates an instance of the derived class, SqlCommand, and displays its parameters. In the example, the application passes a SqlConnection, a query string that is a Transact-SQL SELECT statement, and an array of SqlParameter objects.

public void CreateSqlCommand(SqlConnection myConnection,
    string queryString, SqlParameter[] paramArray)
{
    SqlCommand command = new SqlCommand(queryString, myConnection);
    command.CommandText =
        "SELECT CustomerID, CompanyName FROM Customers "
        + "WHERE Country = @Country AND City = @City";
    command.Parameters.AddRange(paramArray);

    string message = "";
    for (int i = 0; i < command.Parameters.Count; i++)
    {
        message += command.Parameters[i].ToString() + "\n";
    }
    Console.WriteLine(message);
}

Public Sub CreateSqlCommand(ByVal connection As SqlConnection, _
ByVal queryString As String, ByVal params() As SqlParameter)

    Dim command As New SqlCommand(queryString, connection)
    command.CommandText = _
       "SELECT CustomerID, CompanyName FROM Customers " _
       & "WHERE Country = @Country AND City = @City"
    command.UpdatedRowSource = UpdateRowSource.Both
    command.Parameters.AddRange(params)

    Dim message As String = ""
    For i As Integer = 0 To command.Parameters.Count - 1
        message += command.Parameters(i).ToString() & ControlChars.Cr
    Next 

    Console.WriteLine(message)
End Sub

See also

• IDataParameter