Validate a string to be json or not in asp.net
15,513
Solution 1
Probably the quickest and dirtiest way is to check if the string starts with '{':
public static bool IsJson(string input){
input = input.Trim();
return input.StartsWith("{") && input.EndsWith("}")
|| input.StartsWith("[") && input.EndsWith("]");
}
Another option is that you could try using the JavascriptSerializer class:
JavaScriptSerializer ser = new JavaScriptSerializer();
SomeJSONClass = ser.Deserialize<SomeJSONClass >(json);
Or you could have a look at JSON.NET:
- http://james.newtonking.com/projects/json-net.aspx
- http://james.newtonking.com/projects/json/help/index.html?topic=html/SerializingJSON.htm
Solution 2
A working code snippet
public bool isValidJSON(String json)
{
try
{
JToken token = JObject.Parse(json);
return true;
}
catch (Exception ex)
{
return false;
}
}
Comments
-
mohsen dorparasti almost 2 years
is there any way to validate a string to be json or not ? other than try/catch .
I'm using ServiceStack Json Serializer and couldn't find a method related to validation .