How do I return custome validation message as json in ASP.NET webform method

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 catch (Exception ex)
            {
			 throw ex;
				
            }
            finally
            {
                con.Close();
            }


            ArrayList a = new ArrayList();
            a.Add(reportList);
            a.Add(p);
 if (reportList.Count()  != 0)
            {
 return JsonConvert.SerializeObject(a);
            }
			else{
			
			return // "custom message records not found"
}

What I have tried:

 catch (Exception ex)
            {
			 throw ex;
				
            }
            finally
            {
                con.Close();
            }


            ArrayList a = new ArrayList();
            a.Add(reportList);
            a.Add(p);
 if (reportList.Count()  != 0)
            {
 return JsonConvert.SerializeObject(a);
            }
			else{
			
			return // "custom message records not found"
}

Posted 26-Jul-17 6:48am

gaurav.s23

Updated 26-Jul-17 18:43pm

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2 solutions

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Jitku · Accepted Answer · 2017-07-26T11:30:00

Solution 1

You can create object and then convert it to json object. Example.

public class ValidationMessage
{
    public int success { get; set; }
    public string message { get; set; }
}
Usage:

var valMessage = "{\"success\":1,\"message\":\"successfully created.\"}";
return JsonConvert.DeserializeObject<ValidationMessage>(valMessage);

Posted 26-Jul-17 11:30am

Jitku

Comments

[no name] 29-Jul-17 0:53am

Thank you sir.

Karthik_Mahalingam · Accepted Answer · 2017-07-26T18:43:00

Solution 2

try this
just compare the first index value of the json array in javascript

if (reportList.Count()  != 0)
            {
            a.Add("success");
              a.Add(reportList);
            a.Add(p); 
            }
			else {
            a.Add("failure");
              a.Add("Your custom message");  
        }
             return JsonConvert.SerializeObject(a);

Posted 26-Jul-17 18:43pm

Karthik_Mahalingam

Updated 26-Jul-17 18:44pm

v2

Comments

[no name] 29-Jul-17 0:53am

Thank you sir.

Karthik_Mahalingam 31-Jul-17 0:45am

welcome

[no name] 2-Aug-17 1:19am

sir would you please check at this issue :
https://www.codeproject.com/Questions/1199385/How-do-I-send-list-of-object-back-to-server

Karthik_Mahalingam 2-Aug-17 1:32am

looks like it is solved