private void btnModify_Click(object sender, EventArgs e)
{
if (CheckInput() && !CheckModelChanged())
{
DZB model = new DZB()
{
BKISBN = ISBN,
DZID = dzid,
DZNAME = txtName.Text,
DZYEAR = int.Parse(txtYear.Text),
DZDUTY = txtDuty.Text,
DZADDRESS = txtAddress.Text
};
if (BLLDB.DZB.Update(model) == true)
{
MessageBox.Show("更新成功");
BindData("");
ClearAll();
}
else
{
MessageBox.Show("更新失败");
}
}
}
private void btnAdd_Click(object sender, EventArgs e)
{
if (CheckInput() && ISBN != null)
{
string msg = MakeIdentifying();
DZB model = new DZB()
{
DZID = msg,
DZADDRESS = txtAddress.Text,
DZDUTY = txtDuty.Text,
DZNAME = txtName.Text,
DZYEAR = int.Parse(txtYear.Text),
BKISBN = ISBN
};
if (BLLDB.DZB.Add(model) == true)
{
MessageBox.Show("添加纪录成功");
BindData("");
ClearAll();
}
else
{
MessageBox.Show("添加纪录失败");
}
}
}
public bool CheckDZID(string num)
{
DZB model = this.GetModel(num);
if (model == null)
{
return(false);
}
else
{
return(true);
}
}
public bool CheckModelChanged()
{
if (dgvData.SelectedRows.Count == 1)
{
DZB model = (DZB)dgvData.SelectedRows[0].DataBoundItem;
return(model.DZADDRESS == txtAddress.Text &&
model.DZDUTY == txtDuty.Text &&
model.DZNAME == txtName.Text &&
model.DZYEAR == int.Parse(txtYear.Text));
}
else
{
return(false);
}
}
private void dgvData_CellClick(object sender, DataGridViewCellEventArgs e)
{
if (dgvData.SelectedRows.Count == 1)
{
DZB model = (DZB)dgvData.SelectedRows[0].DataBoundItem;
txtName.Text = model.DZNAME;
txtDuty.Text = model.DZDUTY;
txtYear.Text = model.DZYEAR.ToString();
txtAddress.Text = model.DZADDRESS;
ISBN = model.BKISBN;
dzid = model.DZID;
btnAdd.Enabled = true;
btnDelete.Enabled = true;
btnModify.Enabled = true;
}
}
private void borrow_Click(object sender, EventArgs e)
{
if (CheckInput() && ISBN != null)
{
string msg = MakeIdentifying();
DZB model = new DZB()
{
DZID = msg,
DZADDRESS = cbxAddress.Text,
DZDUTY = cbxWork.Text,
DZNAME = txtName.Text,
DZYEAR = int.Parse(cbxYear.Text),
BKISBN = ISBN
};
if (BLLDB.DZB.Add(model) == true)
{
MessageBox.Show("借书成功");
}
else
{
MessageBox.Show("借书失败");
}
}
}
