Click on the "magnifying glass" icon on the bottom toolbar to show the Search Dialog dialog.

Searching (or also sometimes called "Filtering") is supported through the ShowSearchButton option from the ToolBarSettings collection. This will bring a search dialog with common operations (equal, less or equal, greater, not equal, contains), etc. To specify Multiple Column Searching mode set the MultipleSearch option in the SearchDialogSettings collection to true.

JQGrid supports several built-in controls for searching - TextBox, DropDown, AutoComplete, DatePicker. The TextBox mode is the default one, you can define DropDowns for search using the EditValues collection. DatePicker and AutoComplete are supported as separate controls - just define them on the page and set the SearchControlID property of the respective column to the ID of the respective JQAutoComplete and JQDatePicker control.

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

<!DOCTYPE html>
<html lang="en-us">
<head id="Head1" runat="server">
    <meta charset="utf-8">
    <title>jqGrid for ASP.NET WebForms - search dialog</title>
    <!-- The jQuery UI theme that will be used by the grid -->
    <link rel="stylesheet" type="text/css" media="screen" href="" />
    <!-- The jQuery UI theme extension jqGrid needs -->
    <link rel="stylesheet" type="text/css" media="screen" href="/themes/ui.jqgrid.css" />
    <!-- The jQuery UI theme extension jqAutoComplete -->
    <link rel="stylesheet" type="text/css" media="screen" href="/themes/ui.jqautocomplete.css" />
    <!-- jQuery runtime minified -->
    <script src="/js/jquery-3.2.1.min.js" type="text/javascript"></script>
    <!-- The localization file we need, English in this case -->
    <script src="/js/trirand/i18n/grid.locale-en.js" type="text/javascript"></script>
    <!-- The jqGrid client-side javascript -->
    <script src="/js/trirand/jquery.jqGrid.min.js" type="text/javascript"></script>    
    <!-- The javascript for the grid search/edit advanced controls - datepicker and autocomplete -->
    <script src="/js/trirand/jquery.jqDatePicker.min.js" type="text/javascript"></script>
    <script src="/js/trirand/jquery.jqAutoComplete.min.js" type="text/javascript"></script>        
    <style type="text/css">    
        body, html { font-size: 80%; }            
        .ui-autocomplete-loading { background: white url('loading.gif') right center no-repeat; }

    <form id="form1" runat="server">
    <trirand:JQGrid runat="server" ID="JQGrid1" DataSourceID="SqlDataSource1" 
        Width="600px" onsearching="JQGrid1_Searching">
                HeaderText="Order ID" 
            <trirand:JQGridColumn DataField="RequiredDate" 
                Width="200" />
                SearchToolBarOperation="IsEqualTo"  />
                SearchValues="[All]:[All];10:> 10;20:> 20;30:> 30;50:> 50" 
                SearchToolBarOperation="IsGreaterThan" />
        <ToolBarSettings ShowSearchButton="true" />                        
    <%-- This control will be used as a DatePicker search UI control in the grid toolbar--%>
    <%-- You can use JQDatePicker as a standalone control outside of a grid by setting DisplayMode="Standalone" --%>
        ShowOn="Focus" />  
    <%-- This control will be used as an AutoComplete search UI control in the grid toolbar--%>
    <%-- You can use JQAutoComplete as a standalone control outside of a grid by setting DisplayMode="Standalone" --%>
    <%--This control will be used as a DropDown search UI control in the grid toolbar--%>
        <asp:ListItem Text="[All]" Value="[All]"></asp:ListItem>
    <asp:LinqDataSource ID="LinqDataSource1" runat="server" 
        AutoPage="true" AutoSort="true"
        Select="new (OrderID, CustomerID, OrderDate, Freight, ShipName)" 

    <asp:SqlDataSource runat="server" ID="SqlDataSource1" 
        ConnectionString="<%$ ConnectionStrings:SQL2008_661086_trirandEntities %>"        
        SelectCommand="SELECT [OrderID], [RequiredDate], [ShipName], [ShipCity], [Freight] FROM [Orders]">
     <asp:SqlDataSource runat="server" ID="SqlDataSource2" 
        ConnectionString="<%$ ConnectionStrings:SQL2008_661086_trirandEntities %>"                 
        SelectCommand="SELECT DISTINCT [ShipCity] FROM [Orders]">

    <asp:SqlDataSource runat="server" ID="SqlDataSource3" 
        ConnectionString="<%$ ConnectionStrings:SQL2008_661086_trirandEntities %>"        
        SelectCommand="SELECT DISTINCT [ShipName] FROM [Orders]">
    <br /><br />        
    <trirand:codetabs runat="server" id="tabs"></trirand:codetabs>     
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace JQSuiteASPNETExample.examples.searching.search_dialog
    public partial class _default : System.Web.UI.Page
        protected void Page_Load(object sender, EventArgs e)

        protected void JQGrid1_Searching(object sender, Trirand.Web.UI.WebControls.JQGridSearchEventArgs e)
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" />