/// <summary>
/// Raises the <see cref="Deleting"/> event.
/// </summary>
/// <param name="args">The <see cref="NIntegrate.Web.EventArgs.DataSourceDeletingEventArgs"/> instance containing the event data.</param>
internal void OnDeleting(DataSourceDeletingEventArgs args)
{
if (Deleting != null)
{
Deleting(this, args);
}
}
protected override int ExecuteDelete(IDictionary keys, IDictionary oldValues)
{
if (_owner.Criteria == null)
{
throw new ArgumentException("Missing QueryTableType or Criteria setting on QueryDataSource");
}
if (keys == null || keys.Count == 0)
{
throw new ArgumentNullException("keys");
}
var deletingArgs = new DataSourceDeletingEventArgs(GetReadOnlyDictionary(keys), oldValues);
_owner.OnDeleting(deletingArgs);
if (deletingArgs.Cancel)
{
return(0);
}
if (_owner.ConflictDetection == ConflictOptions.CompareAllValues)
{
DetectCompareAllValuesConflicts(oldValues, keys);
}
var criteria = CreateDeleteCriteria(keys);
var affectedRows = _owner.QueryService.Execute(criteria, false);
var statusArgs = new DataSourceStatusEventArgs(this, affectedRows);
_owner.OnDeleted(statusArgs);
if (affectedRows > 0)
{
OnDataSourceViewChanged(System.EventArgs.Empty);
}
return(affectedRows);
}
