/// <summary>
/// Checks if a determinate instance exists
/// </summary>
/// <param name="oid">OID to search the instance</param>
/// <param name="onFilterList">Filters to theck</param>
/// <returns>If exists</returns>
public override bool Exist(ONOid oid, ONFilterList onFilterList)
{
if ((onFilterList == null) || (!onFilterList.InMemory))
{
ONSqlCount lOnSql = new ONSqlCount();
// Create select and first table
string lAlias = lOnSql.CreateAlias(TableName, null, ClassName);
lOnSql.AddSelect(lAlias);
// Fix instance
InhFixInstance(lOnSql, null, null, oid);
// Add filter formula
if(onFilterList != null)
onFilterList.FilterInData(lOnSql, this);
// Execute
return (Convert.ToInt32(Execute(lOnSql)) > 0);
}
else
return (Search(oid, onFilterList, null) != null);
}
/// <summary>
/// Checks if the instance exists in local system.
/// </summary>
/// <param name="oid">OID to search the instance</param>
public bool LocalExist(ONOid oid)
{
ONSqlSelect onSql = new ONSqlCount();
// Create select and first table
string lAlias = onSql.CreateAlias(ClassName, null, ClassName);
onSql.AddSelect(lAlias);
// Fix instance
InhFixInstance(onSql, null, null, oid);
// Execute
return (Convert.ToInt32(Execute(onSql)) > 0);
}