Calling Web Service Method in c#

Sharad Gupta

11y2.9k

I am calling a web service method void type

[WebMethod(enableSession: true)]

public void BRANCHES(String desc)

{

DataTableToJSON(ds.Tables[0]);

return;

}

public void DataTableToJSON(DataTable table)

{

List> list = new List>();

foreach (DataRow row in table.Rows)

{

Dictionary dict = new Dictionary();

foreach (DataColumn col in table.Columns)

{

dict[col.ColumnName] = row[col];

}

list.Add(dict);

}

System.Web.Script.Serialization.JavaScriptSerializer serializer = new System.Web.Script.Serialization.JavaScriptSerializer();

System.Text.UTF8Encoding encoding = new System.Text.UTF8Encoding();

String abcd = serializer.Serialize(list).Replace("[", "").Replace("]", "");

HttpContext.Current.Response.BinaryWrite(encoding.GetBytes(abcd));

}

but when i calling this we service method in my page it gives a error "Response is not well-formed XML"

how can i solve it .

basically this method firstly serializer

"System.Web.Script.Serialization.JavaScriptSerializer serializer" in format.

11 Replies

Know the answer? Post it — somebody with the same question will find it here.

Hemlata Kushwaha11y ago
System.Web.Script.Serialization.JavaScriptSerializer serializer = new System.Web.Script.Serialization.JavaScriptSerializer();
System.Text.UTF8Encoding encoding = new System.Text.UTF8Encoding();
String abcd = serializer.Serialize(list).Replace("[", "").Replace("]", "");
HttpContext.Current.Response.BinaryWrite(encoding.GetBytes(abcd));

Replace your code against my code.

System.Web.Script.Serialization.JavaScriptSerializer jSearializer = new System.Web.Script.Serialization.JavaScriptSerializer();
this.Context.Response.ContentType = "application/json; charset=utf-8";
this.Context.Response.Write(jSearializer.Serialize(list));
0
Hemlata Kushwaha11y ago
Ok, But i have developed a webservice which is return json format and called using above code. so , it's working fine. But without seeing your webservice, i can't suggest. what do you want?
0
Sharad Gupta11y ago
hi Hemlata Kushwaha

i check it online it return correct format
0
Hemlata Kushwaha11y ago
I think your webservice not return json in correct format.
0
Sharad Gupta11y ago
Hi Hemlata Kushwaha

No It is not wroking

error in

var objects = JArray.Parse(json);

"Unexpected character encountered while parsing value: <. Line 3, position 1. "
0
Hemlata Kushwaha11y ago
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Net;
using System.Text;
using System.IO;
using System.Web.Services;
using System.Web.Script.Services;
using System.Web.Script.Serialization;
using Newtonsoft.Json.Linq;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
getarticlelist();
}
private void getarticlelist()
{
StringBuilder str = new StringBuilder();
string url = "Put your Service url";
WebRequest request = WebRequest.Create(url);
using (WebResponse response = (HttpWebResponse)request.GetResponse())
{
using (StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8))
{
string json = reader.ReadToEnd();
var serializer = new JavaScriptSerializer();
var objects = JArray.Parse(json);
str.Append("");
foreach (JObject root in objects)
{
string id = "";
string title = "";
string date = "";
string longdesc = "";

foreach (KeyValuePair app in root)
{
if (app.Key == "id") id = app.Value.ToString();
if (app.Key == "title") title = app.Value.ToString();
if (app.Key == "date") date = app.Value.ToString();
if (app.Key == "longdesc") longdesc = app.Value.ToString();
}
str.Append("
");
str.Append("
");
str.Append("
");

}
str.Append("
" + title + "
" + date + "
" + longdesc + "
");
//---------Social Sharing
divShare.InnerHtml = str.ToString();
}
}
}
}
//-------aspx code
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

//-------------

I think this your solution for calling WebService with c# .
Check this Code.
0
Sharad Gupta11y ago
hi Hemlata Kushwaha
i have only service reference i cant't change web service method.\

i only want to use that method in my c# code and use json string in my code
0
Sharad Gupta11y ago
basically this method return json string but i am not able to use that method in my c# page

because this method gives a error "Response is not well-formed XML" .

simply i want to get this method json string in my c# page. after it i will convert back into datatable
0
Hemlata Kushwaha11y ago
check this code.
0
Hemlata Kushwaha11y ago
[WebMethod]
[ScriptMethod(ResponseFormat = ResponseFormat.Json)]
public void GetDataTable(string id)
{
List> list = new List>();
IndianAstrology IA = new IndianAstrology();
DataTable dt = IA.GetDataTable("select * from tablename");
foreach (DataRow row in dt.Rows)
{
Dictionary dict = new Dictionary();
foreach (DataColumn col in dt.Columns)
{
dict[col.ColumnName] = row[col];
}
list.Add(dict);
}
System.Web.Script.Serialization.JavaScriptSerializer jSearializer = new System.Web.Script.Serialization.JavaScriptSerializer();
this.Context.Response.ContentType = "application/json; charset=utf-8";
this.Context.Response.Write(jSearializer.Serialize(list));
}
0
Saineshwar Bageri11y ago
You want out put in Json or XML
0

Calling Web Service Method in c#

" + title + "