Invalid property identifier character: ‘. Path '', line 1, position 1 when parsing json string to object

Question

I am getting Invalid property identifier character: ‘. Path '', line 1, position 1 while parsing json string to object. My Json string look like this

{‘name’ : ‘Account’ , ‘placeholder’ : ‘Enter Accountant Name’ , ‘label’ : ‘Account Name’ , ‘type’ : ‘string’ , ‘mode’: ‘multiline’}

and the class look like this

public class TemplateModel
{
    public string name { get; set; }

    public string type { get; set; }

    public string placeholder { get; set; }

    public string label { get; set; }

    public string mode { get; set; } = "single";
}

I am getting error in this line.

var list = JsonConvert.DeserializeObject(d);

I have checked the Newtonsoft.Json doucument and found a example when i copy the example and replace with my keys and static values. It works fine. string from example look like this.

       var c= @"{'name': '[email protected]', 'type': 'string', 'label': 'Name', 'placeholder':'Enter Name', 'mode': 'multiline'}";

When i validate my json string in json validator online it validated properly except it replace my ' ' to " " but i have used ' ' because it is used like this in Newtonsoft.Json example.

I am reading my json string template from word file. My json looks like this in text visulazar.

https://ibb.co/XjWrmS7

Please help.

I created this issue in fiddle, Please check https://dotnetfiddle.net/BTma0B

Solution

Looks like you are having smart quotes instead of the normal quotes.

I tried the following with normal quotes on the server side

{
   "name":"Account",
   "placeholder":"Enter Accountant Name",
   "label":"Account Name",
   "type":"string",
   "mode":"multiline"
}

and this works fine.

Can you verify by changing the quotes if that works for you?

Comments

[Joe Sewell]

Your first JSON string looks like it has smart-quote characters instead of "normal" quotes. E.g., you have ‘ and ’, but both of them should be the ' character.

[Muzaffer Galata]

I have tried your sample and got no error. dotnetfiddle.net/UCtYTv

[Mohit Lohani]

@JoeSewell I have tried with "normal" quotes and ' ' both but still having same issue. The reason of using ' ' is because ' ' mentioned in Newtonsoft.Json. Also when i use static json string with ' ' works fine.

[Mohit Lohani]

@MuzafferGalata when i use static string like you have used in example it works fine. I get my string by reading a word file and then using regex to fetch this particular pattern. My dynamic json string look like this {‘name’ : ‘Account’ , ‘placeholder’ : ‘Enter Accountant Name’ , ‘label’ : ‘Account Name’ , ‘type’ : ‘string’ , ‘mode’: ‘multiline’}

[Muzaffer Galata]

Any chance to create just a little fiddle sample?

[Mohit Lohani]

@MuzafferGalata Please check dotnetfiddle.net/BTma0B I have console both the strings i am getting but object not creating

[Muzaffer Galata]

Did you check your string ss? {‘name’ : ‘Account' , ‘placeholder’ : ‘Enter Accountant Name’, ‘label’ : ‘Account Name’ , ‘type’ : ‘string’ , ‘mode’: ‘multiline’} {‘name’ : ‘Account’ , ‘placeholder’ : ‘Enter Accountant Name’ , ‘label’ : ‘Account Name’ , ‘type’ : ‘string’ , ‘mode’: ‘multiline’} This is not a valid TemplateModel object.

[Mohit Lohani]

@MuzafferGalata why ? I just also noticed one thing that the smart-quotes around my keys and values are not actually smart-qoute if i replace this with smart-quote. it works iin js fiddle. I am reading string from word so i think it is converting quote to something else. Are you pointing the same thing ?

[Mohit Lohani]

Not working. Already tried this with both smart quotes and normal quotes but same error.