private void SetDataSource() //为datagridview2设置dataSource
{
int i = OrderService.LocatedOrder(label1.Text);
if (i != -1)
{
dataTable = ListToTable(OrderService.myOrders.ElementAt(i).myOrderDetails);//将list转为datatable
}
else
{
dataTable = new DataTable();
dataTable.Columns.Add("ProductName"); //添加列
dataTable.Columns.Add("ProductPrice"); //添加列
dataTable.Columns.Add("ProductNum"); //添加列
}
dataGridView2.DataSource = dataTable;
}
private void button8_Click(object sender, EventArgs e) //删除商品
{
if (label1.Text == "" || textBox1.Text == null)
{
MessageBox.Show("删除失败！");
}
else if (MessageBox.Show("确定删除？", "Confirm Message", MessageBoxButtons.OKCancel, MessageBoxIcon.Question) == DialogResult.OK)
{
int i = OrderService.LocatedOrder(label1.Text);
if (i != -1) //通过流水号锁定订单，-1无此订单
{
string productName = (string)dataGridView2.CurrentRow.Cells[0].Value;
OrderService.DeleteOrderDetails(OrderService.myOrders.ElementAt(i).myOrderDetails, productName);
ReLoad();
}
else
{
MessageBox.Show("删除失败！");
}
}
}
private void button1_Click(object sender, EventArgs e)
{
if (textBox1.Text != "" && textBox1.Text != null)
{
int i = OrderService.LocatedOrder(label5.Text);
if (i != -1)
{
if (OrderService.ChangeOrderClientName(i, textBox1.Text))
{
MessageBox.Show("修改成功!");
return;
}
}
MessageBox.Show("输入错误!");
}
else
{
MessageBox.Show("输入错误!");
}
}
private void dataGridView2_DataError(object sender, DataGridViewDataErrorEventArgs e)
{
MessageBox.Show("输入格式不对");
//当输入不合法时复原，先将表清空再导入新表
dataTable.Clear();
int n = OrderService.LocatedOrder(label5.Text);
dataTable = Form1.ListToTable(OrderService.myOrders.ElementAt(n).myOrderDetails);//将list转为datatable
dataGridView2.DataSource = dataTable;
}
private void button1_Click(object sender, EventArgs e)
{
if ((textBox1.Text == "" || textBox1.Text == null) && (textBox2.Text == "" || textBox2.Text == null) && (textBox3.Text == "" || textBox3.Text == null))
{
MessageBox.Show("数据为空！");
return;
}
try
{
string productName = textBox1.Text;
float productPrice = float.Parse(textBox2.Text);
int productNum = int.Parse(textBox3.Text);
int i = OrderService.LocatedOrder(label5.Text);
if (OrderService.myOrders.ElementAt(i).AddOrderDetails(productNum, productName, productPrice))
{
MessageBox.Show("添加成功！");
}
else
{
MessageBox.Show("添加失败！");
}
}
catch
{
MessageBox.Show("输入数据格式错误！");
textBox1.Text = "";
textBox2.Text = "";
textBox3.Text = "";
}
//刷新
dataTable.Clear();
int n = OrderService.LocatedOrder(label5.Text);
dataTable = Form1.ListToTable(OrderService.myOrders.ElementAt(n).myOrderDetails);//将list转为datatable
dataGridView2.DataSource = dataTable;
}
private void dataGridView2_CellValueChanged(object sender, DataGridViewCellEventArgs e)
{
valueString = dataGridView2.CurrentCell.Value.ToString();
if (valueString == "" || valueString == null)
return;
i = OrderService.LocatedOrder(label5.Text); //订单在链表中的位置
j = dataGridView2.CurrentCell.RowIndex; //订单条目在链表中的位置
k = dataGridView2.CurrentCell.ColumnIndex; //所选单元格的列号
haveChanged = true;
}
string valueString = null; //存储单元格的数据
public ChangeOrderDetailForm()
{
InitializeComponent();
FormBorderStyle = FormBorderStyle.FixedSingle;
dataTable = new DataTable("OrderDetails");
label5.Text = Form1.S.GetText();//获取选择的订单
int n = OrderService.LocatedOrder(label5.Text);
dataTable = Form1.ListToTable(OrderService.myOrders.ElementAt(n).myOrderDetails);//将list转为datatable
dataGridView2.DataSource = dataTable;
}