我试图在JSON结构中设置一个任意路径,我很难搞清楚如何做一个简单的设定值...
我想要的是像SetValue(path,value)这样的方法,它像SelectToken一样运行,但是如果它不存在则创建路径并设置值.
public void SetPreference(string username, string path, string value)
{
var prefs = GetPreferences(username);
var jprefs = JObject.Parse(prefs ?? @"{}");
var token = jprefs.SelectToken(path);
if (token != null)
{
// how to set the value of the path?
}
else
// how to add the path and value, example {"global.defaults.sort": { "true" }}
}
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global.defaults.sort实际上我的意思是路径{ global: { defaults: { sort: { true } } } }
public string SetPreference(string username, string path, string value)
{
if (!value.StartsWith("[") && !value.StartsWith("{"))
value = string.Format("\"{0}\"", value);
var val = JObject.Parse(string.Format("{{\"x\":{0}}}", value)).SelectToken("x");
var prefs = GetPreferences(username);
var jprefs = JObject.Parse(prefs ?? @"{}");
var token = jprefs.SelectToken(path) as JValue;
if (token == null)
{
dynamic jpart = jprefs;
foreach (var part in path.Split('.'))
{
if (jpart[part] == null)
jpart.Add(new JProperty(part, new JObject()));
jpart = jpart[part];
}
jpart.Replace(val);
}
else
token.Replace(val);
SetPreferences(username, jprefs.ToString());
return jprefs.SelectToken(path).ToString();
}
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