我嘗試寫一個簡單的GUI形式顯示,如果任何數據庫連接我的應用需求是unavilable檢查開放的Oracle連接
public void tryConnection(List<String> connections, List<String> databaseNames)
{
tableLayoutPanel1.RowCount = connections.Count();
Label label;
Label sucOrFail;
String message = "";
int row = 0;
for (int i = 0; i < connections.Count(); i++)
{
try
{
label = new Label();
sucOrFail = new Label();
label.AutoSize = true;
sucOrFail.AutoSize = true;
label.Text = databaseNames[i].ToUpper();
tableLayoutPanel1.Controls.Add(label, 0, row);
OracleConnection con = new OracleConnection(connections[i]);
con.Open();
message = "Success, You Managed to connect to " + databaseNames[i];
sucOrFail.Text = message;
sucOrFail.ForeColor = System.Drawing.Color.LawnGreen;
tableLayoutPanel1.Controls.Add(sucOrFail, 1, row);
con.Close();
row++;
}
catch (OracleException e)
{
Console.WriteLine("failure");
}
}
有反正我可以修改本,這樣,如果con.open()失敗它不會跳入捕捉,因爲當這種情況發生時,我放鬆了我在循環中的位置,並且無法繼續,因爲我需要。
例如
if (con.open())
{
message = ......
}
else
{
message = .....
}
感謝您的幫助 – tom 2011-02-08 16:23:04