WPF中的ConfigurationManager [英] ConfigurationManager in WPF

问题描述

我在wpf项目中有一个配置文件来存储连接字符串.但是，当我尝试获取AppSettings和ConnectionStrings时，我会得到null.

I have a config file in a wpf project to store the connectionstring. But when I try to get AppSettings and ConnectionStrings, I get null.

WEB.config文件是这样的:

the WEB.config file is like this:

<?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>

我尝试了几种方法:

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.

但是这个有效:

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

(这意味着我无法使用配置文件，这违反了我的意愿)我需要帮助.

(That means I cannot use a config file, which is against my will) I need help.

推荐答案

我知道了！我不应该创建一个新的配置文件.项目中有一个默认的app.config文件.现在一切都很好.

I've figured it out! I shouldn't have created a new config file. There is a default app.config file in the project. Now everything is fine.

<?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;

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