在我的窗口應用程序中,我有需要傳遞給另一個表單的orderNumber。該訂單號由我將在下面提供的代碼生成。我試圖只將一個相同的訂單號傳遞給兩個地點,但不幸的是,兩個地點都傳遞了兩個不同的訂單號。我怎樣才能使只有一個訂單號碼被傳遞到這兩個位置。生成該訂單編號將方法的相同值傳遞給多個表單
代碼:
public string orderNumber()
{
string ord = "ORD" + get_next_id() + DateTime.Now.Year;
return ord;
}
public int get_next_id()
{
OleDbConnection objConnection = null;
OleDbCommand objCmd = null;
String sql;
int res;
// Create and open the connection object
objConnection = new OleDbConnection(connString);
objConnection.Open();
sql = "SELECT IIF(MAX(Customer.NumGenerate) IS NULL,100,MAX(Customer.NumGenerate)) as v_max FROM Customer;";
objCmd = new OleDbCommand(sql, objConnection);
res = (int)objCmd.ExecuteScalar();
++res;
objConnection.Close();
return res;
}
在第一種形式下列插入方法使用順序數:
private void SaveAllListItems()
{
string listItems = string.Empty;
foreach (var listBoxItem in listBox1.Items)
{
listItems += listBoxItem.ToString();
if (listBox1.Items.IndexOf(listBoxItem) < listBox1.Items.Count - 1)
{
listItems += ", ";
}
}
InsertUser(maskedTextBox1.Text, comboBox1.Text, maskedTextBox2.Text, maskedTextBox3.Text, maskedTextBox4.Text, maskedTextBox5.Text,
maskedTextBox6.Text, maskedTextBox7.Text, maskedTextBox8.Text, maskedTextBox9.Text, listItems, DateTime.Now, maskedTextBox10.Text, orderNumber(), get_next_id());
;
}
在第二形式我想使用相同的順序正在用來插入用戶的號碼。現在我有以下代碼不起作用,因爲form1具有不同的訂單號,而且表格2有不同。
private void FindOrder()
{
Form1 m = new Form1();
string number = m.orderNumber();
// string number = "ORD1012013";
string InvSql = "SELECT (Customer.[Title] + SPACE(2) + Customer.[Customer's Name]) as CustomerName, Customer.[Customer's Ebayname], Customer.[Email Address], Customer.[Phone Number], (Customer.[Address 1] + SPACE(2) +Customer.[Address 2] + SPACE(2) + Customer.[City] + SPACE(2) + Customer.[Post Code]+ SPACE(2) + Customer.[Country]) as Address, Customer.[Item Purchased], Customer.[Purchased Date], Customer.[Total Price], Customer.[OrderNumber] FROM Customer WHERE Customer.[OrderNumber]= '" + number + "'";
OleDbConnection cnn = new OleDbConnection(connString);
OleDbCommand cmdOrder = new OleDbCommand(InvSql, cnn);
cnn.Open();
OleDbDataReader rdrOrder = cmdOrder.ExecuteReader();
rdrOrder.Read();
custName.Text = rdrOrder["CustomerName"].ToString();
ebayName.Text = rdrOrder["Customer's Ebayname"].ToString();
email.Text = rdrOrder["Email Address"].ToString();
phone.Text = rdrOrder["Phone Number"].ToString();
address.Text = rdrOrder["Address"].ToString();
item.Text = rdrOrder["Item Purchased"].ToString();
date.Text = Convert.ToString(Convert.ToDateTime(rdrOrder["Purchased Date"]));
price.Text = rdrOrder["Total Price"].ToString();
order.Text = rdrOrder["OrderNumber"].ToString();
rdrOrder.Close();
cnn.Close();
}
如何將同一訂單號傳遞到兩個位置?
爲什麼不上你的第二個使用的公共屬性在form2構造函數上形成並設置該值。 – 2013-02-23 15:06:45
你可以給我一個例子,你想說什麼> – 2013-02-23 15:11:26