Minifycode 2022-04-25 Viewed 1K times ASP.NET

In this article you learn, how to use JavaScript Object at Server Side in Asp .Net by calling a method from client side to server side in asp.net.

 

<script>
var Json1 = { "first_name": "Mohan", "last_name": "Das", "age": 21 };
    var jsonobj = eval(Json1);
    var a = JSON.stringify(jsonobj);

    function GetServerDate(a) {
        $.ajax({
            type: "post",
            url: "JSONPage.aspx/FetchServerDate",
            contentType: "application/json; charset=utf-8",
            dataType: "json",
            data: '{"format":"' + a + '"}',
            success: function (result) {
                OnSuccess(result.d);
            },
            error: function (xhr, status, error) {
                OnFailure(error);
            }
        });
    }
    function OnSuccess(dateTime) {
        if (dateTime) {
            document.getElementById("currentDate").innerHTML = dateTime;
        }
    }
    function OnFailure(error) {
        alert(error);
    }

</script> 

 

Server Side Model class

 

public class Emp
{
    public string first_name { get; set; }
    public string last_name { get; set; }
    public int age { get; set; }
}

 

Server side code

 

[System.Web.Services.WebMethod]
    public static string FetchServerDate( string format)
    {
        try
        {
            DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(Emp));
            MemoryStream stream = new MemoryStream(Encoding.UTF8.GetBytes(format));
            Emp obj = (Emp)ser.ReadObject(stream);
        }
        catch (Exception ex)
        {
            return null;
        }
    }

 

Other way

 

var request = new RestRequest("", Method.POST);
                request.AddHeader("x-priority", header.Trim());
                request.AddHeader("Content-Type", "application/json");
                request.AddHeader("accept", "application/json");
                request.AddJsonBody(requestString.Trim());
                response = await client.ExecuteAsync<object>(request);
                var result = JObject.Parse(response.Content);

 

 

How to use JavaScript Object at Server Side in Asp .Net?
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %> <!DOCTYPE html> <html> <head> <title>Asp.Net Repeater Control</title> </head> <body> <form id="form1" runat="server"> <div style="font:13px Verdana;width:310px;"> <asp:ScriptManager ID="scriptManager" runat="server" EnablePageMethods="true" /> <asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional"> <ContentTemplate> <h3>Asp.Net Repeater Control</h3> <%--THE REPEATER CONTROL.--%> <asp:Repeater id="rp" runat="server"> <%--HEADER OF THE REPEATER--%> <HeaderTemplate> <table border="0" width="200px"> </HeaderTemplate> <%--SHOWING ITEMS--%> <ItemTemplate> <tr> <td style="padding:2px; border:solid 1px #CCC;"> <asp:Label Text='<%# Container.DataItem.ToString() %>' runat="server"></asp:Label> </td> </tr> </ItemTemplate> <%--ALTERNATE TEMPLATE (SHOWING ITEMS IN DIFFERENT COLOR--%> <AlternatingItemTemplate> <tr> <td style="padding:2px; border:solid 1px #CCC; background:#EAF7FB; width:200px;"> <asp:Label Text='<%# Container.DataItem.ToString() %>' runat="server"></asp:Label> </td> </tr> </AlternatingItemTemplate> <%--REPEATER FOOTER--%> <FooterTemplate> </table> <div style="padding:20px 0;"> <asp:Label ID="lblFoot" runat="server"></asp:Label> </div> </FooterTemplate> </asp:Repeater> <%--BUTTON CONTROL--%> <asp:Button ID="btVF" Text="View Files" AutoPostBack="true" OnClick="Show" Font-Names="sanserif" Font-Italic="true" Font-Size="155%" runat="server" /> </ContentTemplate> <Triggers> <asp:AsyncPostBackTrigger ControlID="PostBackTrigger" /> </Triggers> </asp:UpdatePanel> </div> </form> </body> </html> using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.IO; public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) {} protected void Show(object sender, EventArgs e) { DirectoryInfo Folder = new DirectoryInfo(Server.MapPath("Files\\")); FileInfo[] fileList = Folder.GetFiles("*.*"); //BIND THE FILE LIST WITH THE REPEATER CONTROL. rp.DataSource = fileList; rp.DataBind(); } } Adding the <AlternatingTemplate> below the <ItemTemplate> will show files with a different background color for every alternate row. <AlternatingItemTemplate> <div style="padding:3px; border:solid 1px #FFF; background:#black"> <asp:Label Text='<%# Container.DataItem.ToString() %>' runat="server"></asp:Label> </div> </AlternatingItemTemplate> </AlternatingItemTemplate> <SeparatorTemplate><hr /> </SeparatorTemplate> Add the <HeaderTemplate> element just above the <ItemTemplate> <HeaderTemplate> <div style="padding-bottom:20px"><strong>Files</strong> (Header)</div> </HeaderTemplate> Repeater with <FooterTemplate> element <FooterTemplate> <div style="padding-top:20px"><asp:Label ID="lblFooter" runat="server"></asp:Label></div> </FooterTemplate> Code Behind In C# Control ft = rp.Controls[rep.Controls.Count - 1].Controls[0]; Label lbl_Footer = ft.FindControl("lblFooter") as Label; lbl_Footer.Text = "Showing total <b>" + fileList.Length + "</b> files in the Footer.";