Sunday, 1 October 2017

Convert List Object to JSON String in C#






Description:


In this example we explain that how to convert List Object to JSON string in asp.net using C#.or how to convert generic List Objet to JSON string in C#.or how to convert List to JSON format using C#.or how to fetch data as a JSON string from List object in C#.
Aspx: 

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="test1.aspx.cs" Inherits="SWS.test1" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>JSON Serialization and Deserialization in Asp.Net</title>
</head>
<body>
<form id="form1" runat="server">
<asp:Button ID="btnSerialize" runat="server" Text="Serialize" OnClick="btnSerialize_Click" />
<asp:Button ID="btnDeserialize" runat="server" Text="DeSerialize" OnClick="btnDeserialize_Click" />
<div>
Serialized Data: <asp:Label ID="lblserial" runat="server"/>
</div>
<div>
DeSerialized Data: <asp:Label ID="lbldeserial" runat="server"/>
</div>
</form>
</body>
</html>

 Aspx.cs: 

protected void Page_Load(object sender, EventArgs e)
        {
            StringBuilder lstfiles = new StringBuilder();
            lstfiles.Append("<img  src='abc.jpg' /><a href='#'>click</a><br>");
            string s = lstfiles.ToString();
            abc.InnerHtml = s;
        }
        protected void btnSerialize_Click(object sender, EventArgs e)
        {
            List<employeedetails> details = new List<employeedetails>();
            employeedetails employee = new employeedetails();
            details.Add(new employeedetails { employeeid = 1, employeename = "kirit", location = "Rajkot" });
            details.Add(new employeedetails { employeeid = 2, employeename = "Pintu", location = "Ahmedabad" });
            details.Add(new employeedetails { employeeid = 3, employeename = "Punit", location = "Surat" });
            details.Add(new employeedetails { employeeid = 4, employeename = "Rahul", location = "Junagadh" });
            string strserialize = JsonConvert.SerializeObject(details);
            lblserial.Text = strserialize;
        }
        protected void btnDeserialize_Click(object sender, EventArgs e)
        {
            string strmsg = "[{\"employeeid\":1,\"employeename\":\"kirit\",\"location\":\"Rajkot\"},{\"employeeid\":2,\"employeename\":\"Pintu\",\"location\":\"Ahmedabad\"}]";
            var employee = JsonConvert.DeserializeObject<List<employeedetails>>(strmsg);
        }

        class employeedetails
        {
            public int employeeid { get; set; }
            public string employeename { get; set; }
            public string location { get; set; }
        }



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