[英]WPF, What's the best way to store a constant to be used at startup?
我有一个访问数据库实例的WPF应用程序。 我在个人计算机上进行开发,该应用程序将在另一台计算机和数据库实例上运行。 是否存在将实例名称存储在WPF应用程序外部的方法或最佳实践,我可以在应用程序启动时读取该实例名称? 当前,当我从一台机器移到另一台机器时,我对数据库实例名称进行注释和取消注释。 我希望在本地计算机上存储一些内容,在启动应用程序时可以读取这些内容。
这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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