/// <summary>
/// 条码框失去焦点
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void TxtBarCode_Leave(object sender, EventArgs e)
{
if (this.txtBarCode.Text.Trim().Length != 0)
{
//3判断是否达到借阅上限
if (borrowList.Select(o => o.BorrowCount).Sum() == Convert.ToInt32(this.lbl_Remainder.Text.Trim()))
{
MessageBox.Show("当前借阅证已达到借阅上限了哦！", "借阅提示");
return;
}
Book book = null;
try
{
//1.查询图书信息
book = bookManager.GetBookInfoByBarCode(this.txtBarCode.Text.Trim());
}
catch (Exception exception)
{
MessageBox.Show("查询异常：" + exception.Message, "异常提示");
}
if (book == null)
{
MessageBox.Show("未查询到当前图书", "借阅提示");
return;
}
//2.保存到列表中
var borrowDetail = borrowList.Where(o => o.BookId == book.BookId).FirstOrDefault();
if (borrowDetail != null)
{
borrowDetail.BorrowCount++;
this.dgvBookList.Refresh();
}
else
{
borrowList.Add(new BorrowDetail
{
BookId = book.BookId,
BookName = book.BookName,
BarCode = book.BarCode,
BorrowCount = 1,
Expire = DateTime.Now.AddDays(reader.AllowDay)
});
this.dgvBookList.DataSource = null;
this.dgvBookList.DataSource = borrowList;
this.btnDel.Enabled = true;
this.btnSave.Enabled = true;
}
}
}
//TxtBarCode失去焦点
private void TxtBarCode_Leave(object sender, EventArgs e)
{
if (this.txtBarCode.Text.Trim().Length != 0)
{
try
{
var bookInfo = bookManager.GetBookInfoByBarCode(this.txtBarCode.Text.Trim());
if (bookInfo == null)
{
MessageBox.Show("未查询到该图书信息", "查询信息");
this.txtBarCode.SelectAll();
this.txtBarCode.Focus();
}
else
{
this.lblBookName.Text = bookInfo.BookName;
this.lblCategory.Text = bookInfo.CategoryName;
this.lblBookPosition.Text = bookInfo.BookPosition;
this.lblBookId.Text = bookInfo.BookId.ToString();
this.lblBookCount.Text = bookInfo.BookCount.ToString();
this.pbImage.Image = (Image)SerializeObjectToString.DeserializeObject(bookInfo.BookImage);
this.txtAddCount.Enabled = true;
this.btnSave.Enabled = true;
this.txtAddCount.Focus();
var isExists = books.Where(o => o.BarCode == bookInfo.BarCode).Count();
if (isExists == 0)
{
books.Add(bookInfo);
this.dgvBookList.DataSource = null;
this.dgvBookList.DataSource = books;
}
}
}
catch (Exception ex)
{
MessageBox.Show("查询图书信息异常：" + ex.Message, "异常提示");
}
}
}