JQGrid does not display data

Question

I have created both client and server side for JQgrid and ASP.net. The grid is displayed but with no data. I could not see the result. The grid displayed but no data.

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Answer 1

I have modified the source, now records are displayed very smoothly but the only problem is that the search is not working, can you please have a look? My Codes are given below:

The aspx page:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="JQGrid.aspx.cs" Inherits="JQGrid" %>





    
    <%----%>

    
    
    
    
    

    



    

    

        

    

and the ashx:

<%@ WebHandler Language="C#" Class="jqGridHandler" %>

using System;
using System.Collections.Generic;

using System.Collections.ObjectModel;

using System.Data;

using System.Data.SqlClient;

using System.Web;

using System.Web.Script.Serialization;

public class jqGridHandler : IHttpHandler
{

    public void ProcessRequest(HttpContext context)
    {
        HttpRequest request = context.Request;
        HttpResponse response = context.Response;

        string _search = request["_search"];
        string numberOfRows = request["rows"];
        //string numberOfRows = "10";
        string pageIndex= request["page"];
        string sortColumnName= request["sidx"];
        string sortOrderBy = request["sord"];


        int totalRecords;
        //public DataTable GetDataTable(string sidx, string sord, int page, int pageSize)
        Collection users = GetUsers(numberOfRows, pageIndex, sortColumnName, sortOrderBy, out totalRecords, _search);
        string output = BuildJQGridResults(users, Convert.ToInt32(numberOfRows), Convert.ToInt32(pageIndex), Convert.ToInt32(totalRecords));
        response.Write(output);
    }

    private string BuildJQGridResults(Collection users,int numberOfRows, int pageIndex,int totalRecords)
    {

        JQGridResults result = new JQGridResults();
        List rows = new List();
        foreach (User user in users)
        {
            JQGridRow row = new JQGridRow();
            row.id = user.CustomerID;
            row.cell = new string[8];
            row.cell[0] = user.CustomerID;
            row.cell[1] = user.CompanyName;
            row.cell[2] = user.ContactName;
            row.cell[3] = user.ContactTitle;
            row.cell[4] = user.Address;
            row.cell[5] = user.City;
            row.cell[6] = user.PostalCode;
            row.cell[7] = user.Country;

            rows.Add(row);
        }
        result.rows = rows.ToArray();
        result.page = pageIndex;
        result.total = totalRecords / numberOfRows;
        result.records = totalRecords;
        return new JavaScriptSerializer().Serialize(result);
    }

    private Collection GetUsers(string numberOfRows, string pageIndex, string sortColumnName, string sortOrderBy, out int totalRecords, string _search)
    {
        Collection users = new Collection();
        string connectionString = "Data Source=ritetechno\\sqlexpress;Initial Catalog=Northwind;Integrated Security=True";
        //

        using (SqlConnection connection = new SqlConnection(connectionString))
        {
            using (SqlCommand command = new SqlCommand())
            {
                int numRows=Convert.ToInt32(numberOfRows)*(Convert.ToInt32(pageIndex));
                int excluderows=Convert.ToInt32(numberOfRows)*((Convert.ToInt32(pageIndex)-1));
                command.Connection = connection;
                command.CommandText = "SELECT TOP " + numRows + " CustomerID, CompanyName, ContactName, ContactTitle, Address, City, PostalCode, Country FROM Customers WHERE CustomerID NOT IN (SELECT TOP " + excluderows +" CustomerID FROM Customers)";
                command.CommandType = CommandType.Text;
                connection.Open();

                using (SqlDataReader dataReader = command.ExecuteReader())
                {
                    User user;
                    while (dataReader.Read())
                    {
                        user = new User();
                        user.CustomerID = Convert.ToString(dataReader["CustomerID"]);
                        user.CompanyName = Convert.ToString(dataReader["CompanyName"]);
                        user.ContactName = Convert.ToString(dataReader["ContactName"]);
                        user.ContactTitle = Convert.ToString(dataReader["ContactTitle"]);
                        user.Address = Convert.ToString(dataReader["Address"]);
                        user.City = Convert.ToString(dataReader["City"]);
                        user.PostalCode = Convert.ToString(dataReader["PostalCode"]);
                        user.Country = Convert.ToString(dataReader["Country"]);
                        users.Add(user);                        
                    } 
                }
                string cmdTotRec = "SELECT COUNT(*) FROM Customers";
                SqlCommand chkTotRec = new SqlCommand(cmdTotRec, connection);
                totalRecords = Convert.ToInt32(chkTotRec.ExecuteScalar().ToString());
                connection.Close();
            }

            return users;
        }

    }
    public bool IsReusable
    {
        // To enable pooling, return true here.
        // This keeps the handler in memory.
        get { return false; }
    }

    public struct JQGridResults
    {
        public int page;
        public int total;
        public int records;
        public JQGridRow[] rows;

    }
    public struct JQGridRow
    {
        public string id;
        public string[] cell;
    }

    [Serializable]
    public class User
    {
        public string CustomerID { get; set; }
        public string CompanyName { get; set; }
        public string ContactName { get; set; }
        public string ContactTitle { get; set; }
        public string Address { get; set; }
        public string City { get; set; }
        public string PostalCode { get; set; }
        public string Country { get; set; }
    }
}