/// <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();
}