private void Search(object param)
{
if (!String.IsNullOrEmpty(SearchText))
{
IEnumerable <Book> search = null;
switch (SearchType)
{
case 0:
search = from b in BookList.Cast <Book>()
where b.Title.ToLower().Contains(SearchText.ToLower())
select b;
break;
case 1:
search = from b in BookList.Cast <Book>()
where b.Author.ToLower().Contains(SearchText.ToLower())
select b;
break;
case 2:
search = from b in BookList.Cast <Book>()
where b.Publisher.ToLower().Contains(SearchText.ToLower())
select b;
break;
}
BookList = search.ToObservableCollection <Book>();
}
else
{
BookList = _bookLibrary.ToObservableCollection <Book>();
}
}
private void Save(Object param)
{
IEnumerable <Book> newData = BookList.Cast <Book>();
XDocument newDoc = new XDocument(
new XDeclaration("1.0", "utf-8", "true"));
XElement bookLibrary = new XElement("BookLibrary");
if (newData.Last().Title == null || newData.Last().Author == null || newData.Last().Publisher == null || newData.Last().PublishDate == null || newData.Last().Language == null || newData.Last().Pages == null)
{
MessageBox.Show("信息填写不完整！", "提示");
return;
}
if (!RegexTxt.IsChinEngNum(newData.Last().Title))
{
MessageBox.Show("书名格式：中文,英文,数字！", "提示");
return;
}
if (!RegexTxt.IsChiEng(newData.Last().Author))
{
MessageBox.Show("作者格式：中文,英文！", "提示");
return;
}
if (!RegexTxt.IsChiEng(newData.Last().Publisher))
{
MessageBox.Show("出版机构格式：中文,英文！", "提示");
return;
}
if (!RegexTxt.IsDate(newData.Last().PublishDate))
{
MessageBox.Show("日期格式为xxxx/xx/xx", "提示");
return;
}
if (!RegexTxt.IsChiEng(newData.Last().Language))
{
MessageBox.Show("语言格式：中文,英文！", "提示");
return;
}
if (!RegexTxt.IsPositiveInt(newData.Last().Pages))
{
MessageBox.Show("页数格式为非零正整数！", "提示");
return;
}
foreach (var b in newData)
{
XElement book = new XElement("Book",
new XAttribute("ID", b.ID),
new XElement("Title", b.Title),
new XElement("Author", b.Author),
new XElement("Publisher", b.Publisher),
new XElement("PublishDate", b.PublishDate),
new XElement("Language", b.Language),
new XElement("Pages", b.Pages)
);
bookLibrary.Add(book);
}
newDoc.Add(bookLibrary);
newDoc.Save(strFilePath);
MessageBox.Show("保存成功！", "提示");
}
private void Add(object param)
{
Book newBook = new Book()
{
ID = (Convert.ToInt32((from b in BookList.Cast <Book>() select b.ID).Max <string>()) + 1).ToString()
};
BookList.Add(newBook);
_bookLibrary = BookList.ToIEnumerable <Book>();
SelectedBook = newBook;
}
