How to handle single quote in the JSON string

Question

I have created a class with list of properties where one of the property contains name which contains single quote. But when I serialize the object using JSON ( JsonConvert.SerializeObject) SerializeObjec and pass it to the Page.ClientScript.RegisterClientScriptBlock(.. where I am getting an error missing argument )

    customer.CustomerID = Convert.ToString(Session["Number"]);
    customer.CustomerName = Convert.ToString(Session["Name"]);
    customer.Type = type;
    customer.InvoiceFromDate = Convert.ToString(Session["From_Date"]);
    customer.InvoiceToDate = Convert.ToString(Session["To_Date"]);

    string output = JsonConvert.SerializeObject(customer);
    Page.ClientScript.RegisterClientScriptBlock(GetType(), "SaveInfo", "SetData('" + output + "','" + URL + "');", true);

In the above customer.CustomerName contains value = "The Young's Family"

Any help is appreciated

Answer 1

Json don't allow single quotes, to fix the input you must change the character to double quote, for example str.replace(/'/g, '"')

Answer 2

Is there an exception in line 7?

There is a single quote in my example, but I didn't encounter this problem.

    class Program  
    {  
        static void Main(string[] args)  
        {  
            MyClass myClass = new MyClass() { ID = 1, Name = "TimonYang's Name" };  
  
            var re = JsonConvert.SerializeObject(myClass);  
            MyClass myClass1 = JsonConvert.DeserializeObject<MyClass>(re);  
        }  
    }  
    class MyClass  
    {  
        public int ID { get; set; }  
        public string Name { get;set; }  
    }  

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Answer 3

you issue is not the JSON which support unquoted single quotes, but that you render in a javascript string literal.

for simplicity assume:

var output = "The Young's Family";

then

"SetData('" + output +"')"

renders as:

SetData('The Young's Family')

but because you used single quotes to the start the literal, you must quote:

   SetData('The Young\'s Family')

therefore, in your output variable replace all "'" with "\'".

output = output.Replace("'","\'"));

note: need to escape \ in c#