To delete a row, just select it and click the Recycle Bin icon (bottom left)

You can initiate row deleting from the toolbar (recycle bin button) or from an external control. In this example, we are using the toolbar ToolBarSettings.ShowDeleteButton=True

Just handle the RowDeleting event on the server. It is callled via ajax request from jqGrid and in the event arguments you will have the primary key of the row to delete (eventArgs.RowKey). Then just locate the row in your datasource, delete it and rebind the grid.

In this example we have used ADO.NET as a sample datasource, but this approach will work for any type of datasource you have.
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="default.aspx.cs" Inherits="JQSuiteASPNETExample.examples.editing_data.delete._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 - delete 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" />
    <!-- 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>    
    <style type="text/css">
        body, html { font-size: 80%; }    
    <form id="form1" runat="server">
       <span style="font-size: 135%; font-family: Verdana; font-weight: bold">To delete a row, just select it and click the Recycle Bin icon (bottom left)</span>
       <br /><br />
       <trirand:JQGrid ID="JQGrid1" runat="server" Width="600px"  OnRowDeleting="JQGrid1_RowDeleting">         
                <trirand:JQGridColumn DataField="CustomerID" Editable="false" PrimaryKey="true" />
                <trirand:JQGridColumn DataField="CompanyName" Editable="true" />
                <trirand:JQGridColumn DataField="Phone" Editable="true" />
                <trirand:JQGridColumn DataField="PostalCode" Editable="true" />
                <trirand:JQGridColumn DataField="City" Editable="true" />                
            <ToolBarSettings ShowDeleteButton="true" />            
                CancelText="Cancel delete"
                LeftOffset="100" />
            <ClientSideEvents AfterDeleteDialogRowDeleted="rowDeleted" />          
       <br /><br />
       <trirand:codetabs runat="server" id="DataTableCodeTabs"></trirand:codetabs>    
       <script type="text/javascript">
       function rowDeleted(ev, deleteRowIDs) {        
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;

namespace JQSuiteASPNETExample.examples.editing_data.delete
    public partial class _default : System.Web.UI.Page
        protected void Page_Load(object sender, EventArgs e)
            JQGrid1.DataSource = GetData();

        protected void JQGrid1_RowDeleting(object sender, Trirand.Web.UI.WebControls.JQGridRowDeleteEventArgs e)
            DataTable dt = GetData();
            dt.PrimaryKey = new DataColumn[] { dt.Columns["CustomerID"] };
            DataRow rowToDelete = dt.Rows.Find(e.RowKey);
            if (rowToDelete != null)

            JQGrid1.DataSource = GetData();

        protected DataTable GetData()
            if (Session["DeleteDialogData2"] == null)
                // Create a new Sql Connection and set connection string accordingly
                SqlConnection sqlConnection = new SqlConnection();
                sqlConnection.ConnectionString = ConfigurationManager.ConnectionStrings["SQL2008_661086_trirandEntities"].ConnectionString;

                string sqlStatement = "SELECT CustomerID, CompanyName, Phone, PostalCode, City FROM Customers";

                // Create a SqlDataAdapter to get the results as DataTable
                SqlDataAdapter sqlDataAdapter = new SqlDataAdapter(sqlStatement, sqlConnection);

                // Create a new DataTable
                DataTable dtResult = new DataTable();

                // Fill the DataTable with the result of the SQL statement

                Session["DeleteDialogData2"] = dtResult;

                return dtResult;
                return Session["DeleteDialogData2"] as DataTable;

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" />