void EvalTransactionState()
{
var objectsToSave = TransactionalChangeHandler.ObjectsToSave(unitOfWork);
saveChangesItem.Enabled =
discardChangesItem.Enabled = objectsToSave;
}
private void discardChangesItem_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
{
if (TransactionalChangeHandler.ObjectsToSave(unitOfWork))
{
if (XtraMessageBox.Show("This operation is going to discard all unsaved changes. Are you sure you want to proceed?", "Question",
MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
{
//scheduler.BeginUpdate();
try {
// Use my own DiscardChanges
DiscardChanges(unitOfWork, null);
}
finally {
//scheduler.EndUpdate();
}
}
}
}
public void DocumentClosingHandler(object sender, DocumentCancelEventArgs e)
{
if (TransactionalChangeHandler.ObjectsToSave(unitOfWork))
{
var answer = XtraMessageBox.Show("There are unsaved changes. Do you want to validate and save before closing the list?", "Question",
MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question);
if (answer == DialogResult.Yes)
{
if (!TransactionalChangeHandler.ValidateAndCommit(unitOfWork))
{
e.Cancel = true;
}
}
else if (answer == DialogResult.Cancel)
{
e.Cancel = true;
}
}
}