Question

Im trying to use my web Config files in Silverlight.

I’ve put the following in web.config:

<configuration>
  <appSettings>
    <add key="FileHeader" value="file://***.com/Builds/"/>
    <add key="WebHeader" value="http://***.com/dev/builds"/>    
  </appSettings>

Im trying to use them like

string temp= System.Configuration!System.Configuration.ConfigurationManager.AppSettings.Get("FileHeader");

However it does not work, it gives an error “Only assignment, calls, increment, decrement…can be used as a statement”

Answer 1

You can’t read web.config from your Silverlight application because the configuration namespace does not exist in the SL .NET Framework, but what you can do is this:

public static string GetSomeSetting(string settingName)
        {
            var valueToGet = string.Empty;
            var reader = XmlReader.Create("XMLFileInYourRoot.Config");
            reader.MoveToContent();

            while (reader.Read())
            {
                if (reader.NodeType == XmlNodeType.Element && reader.Name == "add")
                {
                    if (reader.HasAttributes)
                    {
                        valueToGet = reader.GetAttribute("key");
                        if (!string.IsNullOrEmpty(valueToGet) && valueToGet == setting)
                        {
                            valueToGet = reader.GetAttribute("value");
                            return valueToGet;
                        }
                    }
                }
            }

            return valueToGet;
        }