/// <summary>
/// Function called to search the model
/// for availability of the specified string.
/// </summary>
/// <param name="str">The search string</param>
/// <returns>True, if the string is contained in the model, else false</returns>
public override bool Contains(string str)
{
return((ActivityCategory != null && ActivityCategory.StartsWith(str, StringComparison.CurrentCultureIgnoreCase)) ||
(ActivityCode != null && ActivityCode.StartsWith(str, StringComparison.CurrentCultureIgnoreCase)) ||
(OAActivityCodeId != null && OAActivityCodeId.StartsWith(str, StringComparison.CurrentCultureIgnoreCase)) ||
(Account != null && Account.StartsWith(str, StringComparison.CurrentCultureIgnoreCase)) ||
(JobCode != null && JobCode.StartsWith(str, StringComparison.CurrentCultureIgnoreCase)) ||
(OAJobCodeId != null && OAJobCodeId.StartsWith(str, StringComparison.CurrentCultureIgnoreCase)) ||
(CostCenter != null && CostCenter.StartsWith(str, StringComparison.CurrentCultureIgnoreCase)) ||
(OACostCenterId != null && OACostCenterId.StartsWith(str, StringComparison.CurrentCultureIgnoreCase)));
}