[英]WPF, What's the best way to store a constant to be used at startup?
我有一個訪問數據庫實例的WPF應用程序。 我在個人計算機上進行開發,該應用程序將在另一台計算機和數據庫實例上運行。 是否存在將實例名稱存儲在WPF應用程序外部的方法或最佳實踐,我可以在應用程序啟動時讀取該實例名稱? 當前,當我從一台機器移到另一台機器時,我對數據庫實例名稱進行注釋和取消注釋。 我希望在本地計算機上存儲一些內容,在啟動應用程序時可以讀取這些內容。
這是我目前正在做的事情:
try
{
if (sqlConn != null)
{
sqlConn.Close();
}
strConnection = "Data Source=" + strDBInstance + "; Initial Catalog=NBFoodPantry;Integrated Security=true; MultipleActiveResultSets = True";
//strConnection = "Data Source=CASS-LAPTOP\\SQLEXPRESS; Initial Catalog=NBFoodPantry;Integrated Security=true; MultipleActiveResultSets = True";
//strConnection = "Data Source=KENTS-WORK-PC\\CASS_SQLEXPRESS; Initial Catalog=NBFoodPantry;Integrated Security=true; MultipleActiveResultSets = True";
sqlConn = new SqlConnection(@strConnection);
try
{
sqlConn.Open();
}
catch (Exception ex)
{
string strMsg;
WriteErrorLog(strErrorLogFile, "ConnectToDatabase", ex.Message, false);
strMsg = "ConnectToDatabase: SQL Open failed. Please make sure that you database ";
strMsg += "instance and name are correct. Also make sure that the SQL engine is running.";
System.Windows.MessageBox.Show(strMsg);
}
}
catch (Exception ex)
{
string strMsg;
WriteErrorLog(strErrorLogFile, "ConnectToDatabase", ex.Message, false);
strMsg = " ConnectToDatabase: failed with error, " + ex.Message + ".";
System.Windows.MessageBox.Show(strMsg);
}
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