如何根據app.config文件中的值獲取密鑰？

Question

我有一個app.config文件是這樣的： -

<?xml version="1.0" encoding="utf-8" ?> 
<configuration> 
    <appSettings> 
    <add key="botLogs" value="d:\TFS Projects-BotLogs/"/> 
    <add key="botfolder" value="C:\BOTSCONFIG"/> 
    </appSettings> 
    <connectionStrings> 
    <add connectionString="Server=1.1.1.1;Database=BGAppCrawling;UID=sa;Password=something;" name="VGDB"/> 
    <add connectionString="Server=1.1.1.1;Database=BGMappingStaging;UID=sa;Password=something;" name="VGDBMapping"/> 
    </connectionStrings> 
</configuration> 

現在我可以獲取基於在appSettings部分鍵的值是這樣的： -

string filePath = ConfigurationSettings.AppSettings["botLogs"].ToString(); 

但是，什麼是，如果我想要的方式根據appSetting部分的值獲取密鑰？

Answer 1

foreach(string key in System.Configuration.ConfigurationSettings.AppSettings) 
{ 
var key = key.ToString(); 
var value = ConfigurationSettings.AppSettings[key.ToString()]; 
//Do something here 
} 

或

var settings = System.Web.Configuration.ConfigurationSettings.AppSettings; 

var value = from string k in settings.Keys 
      where k.StartsWith("MyValue") 
      select settings[k]; 

Answer 2

你可以嘗試以下GetEnumerator method基於代碼：

NameValueCollection values = ConfigurationManager.AppSettings; 
Iterate(values);  
public void Iterate(NameValueCollection myCollection) 
{ 
    IEnumerator myEnumerator = myCollection.GetEnumerator(); 
    Console.WriteLine("KEY VALUE"); 
    foreach (String item in myCollection.AllKeys) 
    Console.WriteLine(" {0,-10} {1}", item, myCollection[item]); 
    Console.WriteLine(); 
} 

Answer 3

foreach (string key in Configuration.AppSettings.Settings.AllKeys) 
     { 
      string value = appSettings.Settings[key].Value; 

      if (value.Equals(myValue)) 
      { 
       Console.WriteLine("Found Key: " + key); 
       break; 
      } 
     } 

Answer 4

我會說，你應該用鍵替換值的鍵和值，

<add key="d:\TFS Projects-BotLogs/" value="botLogs"/> 
<add key="C:\BOTSCONFIG" value="botfolder"/> 

感謝 拉克什