public bool Close(IDocument document)
{
if (document == null) { throw new ArgumentNullException("document"); }
if (!documents.Contains(document))
{
throw new ArgumentException("document is not an item of the Documents collection.");
}
DocumentsClosingEventArgs eventArgs = new DocumentsClosingEventArgs(new IDocument[] { document });
OnDocumentsClosing(eventArgs);
if (eventArgs.Cancel) { return false; }
if (ActiveDocument == document)
{
ActiveDocument = null;
}
documents.Remove(document);
return true;
}
public bool CloseAll()
{
DocumentsClosingEventArgs eventArgs = new DocumentsClosingEventArgs(Documents);
OnDocumentsClosing(eventArgs);
if (eventArgs.Cancel) { return false; }
ActiveDocument = null;
while (documents.Any())
{
documents.Remove(documents.First());
}
return true;
}
protected virtual void OnDocumentsClosing(DocumentsClosingEventArgs e)
{
if (DocumentsClosing != null) { DocumentsClosing(this, e); }
}
private void DocumentManagerDocumentsClosing(object sender, DocumentsClosingEventArgs e)
{
IEnumerable<IDocument> modifiedDocuments = e.Documents.Where(d => d.Modified).ToList();
if (!modifiedDocuments.Any()) { return; }
}