WPF中的ConfigurationManager

Question

我在wpf项目中有一个配置文件来存储connectionstring.但是当我尝试获取AppSettings和ConnectionStrings时,我得到null.

WEB.config文件是这样的:

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <connectionStrings>
    <add name="Trackboard" connectionString="Data Source=(localdb)\v11.0;Initial Catalog=Trackboard;Integrated Security=True;AttachDbFileName=E:\Users\Sean\Workspace\DATABASE\Trackboard.mdf"/>
  </connectionStrings>
  <appSettings>
    <add key="Trackboard" value="Data Source=(localdb)\v11.0;Initial Catalog=Trackboard;Integrated Security=True;AttachDbFileName=E:\Users\Sean\Workspace\DATABASE\Trackboard.mdf"/>
  </appSettings>
</configuration>

我尝试过几种方式:

W1: ConnStr = ConfigurationManager.ConnectionStrings["Trackboard"].ConnectionString;
W2: ConnStr = ConfigurationManager.ConnectionStrings[0].ConnectionString;
W3: ConnStr = ConfigurationManager.AppSettings["Trackboard"];
W4: ConnStr = ConfigurationManager.AppSettings[0];

他们都没有工作.

但这个工作:

ConnStr = @"Data Source=(localdb)\v11.0;Initial Catalog=Trackboard;Integrated Security=True;AttachDbFileName=E:\Users\Sean\Workspace\DATABASE\Trackboard.mdf";

(这意味着我不能使用配置文件,这违背我的意愿)我需要帮助.

Answer 1

只需添加一个app.config 而不是web.config因为它不是一个Web应用程序.

之后它太简单了,只需添加对System.Configuration的引用然后使用它.

var ConnStr = ConfigurationManager.AppSettings["Trackboard"];

Answer 2

我已经想通了！我不应该创建新的配置文件。项目中有一个默认的app.config文件。现在一切都很好。

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <configSections>
    </configSections>
    <connectionStrings>
        <add name="Trackboard.Properties.Settings.TrackboardConnectionString"
            connectionString="Data Source=(LocalDB)\v11.0;AttachDbFilename=|DataDirectory|\DATABASE\Trackboard.mdf;Integrated Security=True"
            providerName="System.Data.SqlClient" />
    </connectionStrings>
</configuration>

private static string ConnStr = ConfigurationManager.ConnectionStrings["Trackboard.Properties.Settings.TrackboardConnectionString"].ConnectionString;