private void submit_btn_Click(object sender, EventArgs e)
{
if (!CheckString.CheckUDouble(textBox1.Text.Trim()) || !(Double.Parse(textBox1.Text.Trim()) > 0 && (Double.Parse(textBox1.Text.Trim()) <= 1)))
{
MessageBox.Show("请检查折扣是否为0-1的小数", "折扣填写错误");
}
else
{
Connector.ChangeDiscount(level, textBox1.Text.Trim());
}
}
private void submit_btn_Click(object sender, EventArgs e)
{
if (CheckString.CheckISBN(isbn_textbox.Text.Trim()) && CheckString.CheckUDouble(price_textbox.Text.Trim()))
{
Connector.ChangePrice(isbn_textbox.Text.Trim(), price_textbox.Text.Trim());
dataGridView1.DataSource = Connector.SelectBookInfoTable(0, "").Tables[0].DefaultView;
}
else if (!CheckString.CheckISBN(isbn_textbox.Text.Trim()))
{
MessageBox.Show("请检查ISBN填写是否正确", "ISBN格式错误");
}
else if (!CheckString.CheckUDouble(price_textbox.Text.Trim()))
{
MessageBox.Show("请检查价格填写是否正确", "价格错误");
}
}
private void submit_btn_Click(object sender, EventArgs e)
{
if (CheckString.CheckISBN(isbn_textbox.Text.Trim()) && CheckString.CheckUDouble(money_textbox.Text.Trim()) && double.Parse(money_textbox.Text.Trim()) > 0)
{
String ISBN = isbn_textbox.Text.Trim();
String bookname = bookname_textbox.Text.Trim();
String authorname = author_textbox.Text.Trim();
String publishname = publish_textbok.Text.Trim();
String classificationname = classification_textbox.Text.Trim();
double money = double.Parse(money_textbox.Text.Trim());
String remarks = remarks_textbox.Text.Trim();
MessageBoxButtons messButton = MessageBoxButtons.OKCancel;
DialogResult dr = MessageBox.Show("确定?", "确认", messButton);
if (dr == DialogResult.OK)//如果点击“确定”按钮
{
Connector.AddNewBooks(ISBN, bookname, authorname, publishname, classificationname, money, remarks);
}
else//如果点击“取消”按钮
{
isbn_textbox.Text
= bookname_textbox.Text
= author_textbox.Text
= publish_textbok.Text
= money_textbox.Text
= classification_textbox.Text
= remarks_textbox.Text = "";
}
}
else if (!CheckString.CheckISBN(isbn_textbox.Text.Trim()))
{
MessageBox.Show("请检查ISBN填写是否正确", "ISBN格式错误");
}
else if (!CheckString.CheckUDouble(money_textbox.Text.Trim()) || double.Parse(money_textbox.Text.Trim()) == 0)
{
MessageBox.Show("请检查价格填写是否正确", "价格填写错误");
}
}