// Delete sub-menu opening
private void MenuItemDelete_SubmenuOpening(object sender, RoutedEventArgs e)
{
try
{
// Temporarily set the DeleteFlag search term so that it will be used to chec for DeleteFlag = true
SearchTerm currentSearchTerm = this.DataHandler.FileDatabase.CustomSelection.SearchTerms.First(term => term.DataLabel == Constant.DatabaseColumn.DeleteFlag);
SearchTerm tempSearchTerm = currentSearchTerm.Clone();
currentSearchTerm.DatabaseValue = "true";
currentSearchTerm.UseForSearching = true;
currentSearchTerm.Operator = "=";
//bool deletedImages = this.DataHandler.FileDatabase.ExistsRowThatMatchesSelectionForAllFilesOrConstrainedRelativePathFiles(FileSelectionEnum.MarkedForDeletion);
//bool deletedImages = this.DataHandler.FileDatabase.CountAllFilesMatchingSelectionCondition(FileSelectionEnum.Custom) > 0;
bool deletedImages = this.DataHandler.FileDatabase.ExistsFilesMatchingSelectionCondition(FileSelectionEnum.Custom);
// Reset the DeleteFlag search term to its previous values
currentSearchTerm.DatabaseValue = tempSearchTerm.DatabaseValue;
currentSearchTerm.UseForSearching = tempSearchTerm.UseForSearching;
currentSearchTerm.Operator = tempSearchTerm.Operator;
this.MenuItemDeleteFiles.IsEnabled = deletedImages;
this.MenuItemDeleteFilesAndData.IsEnabled = deletedImages;
this.MenuItemDeleteFilesData.IsEnabled = deletedImages;
// Enable the delete current file option only if we are not on the thumbnail grid
this.MenuItemDeleteCurrentFileAndData.IsEnabled = this.MarkableCanvas.IsThumbnailGridVisible == false; // Only show this option if the thumbnail grid is visible
this.MenuItemDeleteCurrentFile.IsEnabled = this.MarkableCanvas.IsThumbnailGridVisible == false && this.DataHandler.ImageCache.Current.IsDisplayable(this.FolderPath);
this.MenuItemDeleteCurrentData.IsEnabled = this.MarkableCanvas.IsThumbnailGridVisible == false;
}
catch (Exception exception)
{
TracePrint.PrintMessage(String.Format("Delete submenu failed to open in Delete_SubmenuOpening. {0}", exception.ToString()));
// This function was blowing up on one user's machine, but not others.
// I couldn't figure out why, so I just put this fallback in here to catch that unusual case.
this.MenuItemDeleteFiles.IsEnabled = true;
this.MenuItemDeleteFilesAndData.IsEnabled = true;
this.MenuItemDeleteFilesData.IsEnabled = true;
this.MenuItemDeleteCurrentFile.IsEnabled = true;
this.MenuItemDeleteCurrentFileAndData.IsEnabled = true;
this.MenuItemDeleteCurrentData.IsEnabled = true;
}
}
