/// <summary>
/// Adds a query to history.
/// </summary>
/// <param name="query"></param>
public virtual void AddQueryToHistory(string query)
{
if (query == null || query.Length == 0)
{
return;
}
bool isPresentInHistory = false;
foreach (string item in QueryHistory)
{
if (string.Compare(item, query, !FindOptions.MatchCase) == 0)
{
isPresentInHistory = true;
break;
}
}
if (!isPresentInHistory)
{
QueryHistory.AddItem(query);
}
}