Question 108750 in Json Question posted in
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Json – I have a variable of type Jproperty? in C#. How can I identify if it is empty?

As mentioned in the title I have a variable of type Jproperty? How can I identify if it is empty?

I can check if is NULL but not able to check if it is empty

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2

Answers


  1. 0

    You could check if its null or empty

    If (string.IsNullOrEmpty(yourJpropertyVariable.Value.ToString) {};

    Hope this helps.
    I am new to stack overflow so sorry for the indendation.

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  2. 0

    Assuming that you are talking about Newtonsoft Json.NET library then:

    Checking for null can be done by checking JTokenType.Null:

    var jObject = JObject.Parse("""
{
    "propEmpty": "",
    "propNull": null
}
""");
var nullProp = jObject.Descendants().OfType<JProperty>().First(property => property.Name == "propNull");
var isNull = nullProp.Value.Type == JTokenType.Null;

    For empty string you can try something like:

    var empty = jObject.Descendants().OfType<JProperty>().First(property => property.Name == "propEmpty");
var isEmptyValue = empty.Value.ToString() == string.Empty;
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