/// <summary>
    /// Handles the OnClick event of the cmdStartDate control.
    /// </summary>
    /// <param name="sender">The source of the event.</param>
    /// <param name="e">The <see cref="System.EventArgs"/> instance containing the event data.</param>
    protected void cmdStartDate_OnClick(object sender, EventArgs e)
    {
        string contextValue = startDateContext.Value;

        string[]        args         = contextValue.Split(new Char[] { ':' });
        string          spaid        = args[0];
        DateTime        startDate    = ResolveDateTime(args[1]);
        ISalesProcesses salesProcess = Helpers.GetSalesProcess(this.EntityContext.EntityID.ToString());

        salesProcess.StartStep(spaid, startDate);
        salesProcess.Save();
    }