You can use the Filter property of control to specify different types of item filtering (items disappear from the dropdown and cannot be selected if they do not match the text in the textbox are based on the following Filter criteria):

  • Filter.None (no filtering is applied)

  • Filter.StartsWidth (show only items starting with the text typed)

  • Filter.Contains (show only items which contain the text types)

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="default.aspx.cs" Inherits="JQSuiteASPNETExample.examples.combobox.filter._default" %>
<%@ Register Assembly="Trirand.Web" TagPrefix="trirand" Namespace="Trirand.Web.UI.WebControls" %>

<!DOCTYPE html>
<html lang="en">
<meta charset="utf-8">
    <title>jqComboBox for ASP.NET WebForms - Load from DataBase</title>
    <!-- The jQuery UI theme that will be used by the combobox  -->
    <link rel="stylesheet" type="text/css" href="" />    
    <!-- The jQuery UI theme extension the combobox needs -->
    <link rel="stylesheet" type="text/css" href="/themes/ui.jqcombobox.css" />
    <!-- jQuery runtime minified -->
    <script type="text/javascript" src="/js/jquery-3.2.1.min.js"></script>
    <!-- The jqComboBox client-side javascript -->
    <script type="text/javascript" src="/js/trirand/jquery.jqcombobox.min.js"></script>
    <style type="text/css">    
        body, html { font-size: 80%; }
    <form id="Form1" runat="server">
    <table cellpadding="10" cellspacing="10">
            <td valign="top">
    <br /><br /><br />
    <br /><br /><br />
        <trirand:codetabs runat="server" ID="tabs"></trirand:codetabs>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web.UI;
using JQSuiteASPNETExample.dbml;
using Trirand.Web.UI.WebControls;

namespace JQSuiteASPNETExample.examples.combobox.filter
    public partial class _default : System.Web.UI.Page
        protected void Page_Load(object sender, EventArgs e)
            if (!Page.IsPostBack)
                var northWindModel = new NorthWindDataClassesDataContext();
                List orders = northWindModel.Orders.Distinct().ToList();

                foreach (Order order in orders)
                    // only add items if they are not already added to the combobox
                    if (JQComboBox1.FindItemByText(order.ShipName) == null)
                            new JQListItem
                                Text = order.ShipName,
                                Value = order.CustomerID
Switch theme:

Theming is based on the very popular jQuery ThemeRoller standard. This is the same theming mechanism used by jQuery UI and is now a de-facto standard for jQuery based components. The benefits of using ThemeRoller are huge. We can offer a big set of ready to use themes created by professional designers, including Windows-like themes (Redmond), Apple-like theme (Cupertino), etc. In addition to that any jQuery UI controls on the same page will pick the same theme.

Last, but not least, you can always roll your own ThemeRoller theme, using the superb Theme Editor

To use a theme, simply reference 2 Css files in your Html <head> section - the ThemeRoller theme you wish to use, and the jqGrid own ThemeRoller Css file. For example (Redmond theme):

<link rel="stylesheet" type="text/css" media="screen" href="/themes/redmond/jquery-ui-1.8.2.custom.css" />
<link rel="stylesheet" type="text/css" media="screen" href="/themes/ui.jqgrid.css" />