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Virtualization

ID	Contact Title	Contact Name	Country	Rating


1	Sales Agent	Antonio Moreno	Brazil	1 2 3 4 5
2	Owner	Pascale Cartrain	Germany	1 2 3 4 5
3	Sales Manager	Matti Karttunen	Italy	1 2 3 4 5
4	Accounting Manager	Antonio Moreno	Bulgaria	1 2 3 4 5
5	Owner	Jaime Yorres	Italy	1 2 3 4 5
6	Marketing Manager	Patricio Simpson	Austria	1 2 3 4 5
7	Sales Consultant	Howard Snyder	USA	1 2 3 4 5
8	Sales Agent	Georg Pipps	Austria	1 2 3 4 5
9	Sales Consultant	Georg Pipps	Bulgaria	1 2 3 4 5
10	Sales Associate	Jaime Yorres	Bulgaria	1 2 3 4 5
11	Sales Consultant	Howard Snyder	Spain	1 2 3 4 5
12	Sales Consultant	Jaime Yorres	Brazil	1 2 3 4 5
13	Sales Associate	Matti Karttunen	England	1 2 3 4 5
14	Sales Representative	Elizabeth Lincoln	Austria	1 2 3 4 5
15	Sales Associate	Pascale Cartrain	Spain	1 2 3 4 5
16	Accounting Manager	Howard Snyder	Bulgaria	1 2 3 4 5
17	Sales Consultant	Antonio Moreno	USA	1 2 3 4 5
18	Sales Representative	Patricio Simpson	Germany	1 2 3 4 5
19	Accountant	Patricio Simpson	France	1 2 3 4 5
20	Marketing Assistant	Pascale Cartrain	Italy	1 2 3 4 5
21	Sales Associate	Jaime Yorres	Spain	1 2 3 4 5
22	Sales Consultant	Patricio Simpson	Germany	1 2 3 4 5
23	Sales Consultant	Jaime Yorres	Argentina	1 2 3 4 5
24	Owner	Hanna Moos	Spain	1 2 3 4 5
25	Marketing Assistant	Matti Karttunen	Bulgaria	1 2 3 4 5
26	Accountant	Antonio Moreno	Spain	1 2 3 4 5
27	Sales Manager	Antonio Moreno	Argentina	1 2 3 4 5
28	Accounting Manager	Georg Pipps	Germany	1 2 3 4 5
29	Accounting Manager	Howard Snyder	Austria	1 2 3 4 5
30	Sales Consultant	Pascale Cartrain	Italy	1 2 3 4 5
31	Sales Agent	Jaime Yorres	USA	1 2 3 4 5
32	Sales Agent	Howard Snyder	Brazil	1 2 3 4 5
33	Accounting Manager	Pascale Cartrain	England	1 2 3 4 5
34	Accountant	Jaime Yorres	Bulgaria	1 2 3 4 5
35	Marketing Assistant	Paul Henriot	Bulgaria	1 2 3 4 5
36	Sales Consultant	Paul Henriot	Austria	1 2 3 4 5
37	Sales Representative	Georg Pipps	Brazil	1 2 3 4 5
38	Sales Agent	Jaime Yorres	Italy	1 2 3 4 5
39	Sales Associate	Elizabeth Lincoln	Italy	1 2 3 4 5
40	Sales Agent	Howard Snyder	Germany	1 2 3 4 5
41	Marketing Manager	Patricio Simpson	Italy	1 2 3 4 5
42	Sales Associate	Elizabeth Lincoln	Germany	1 2 3 4 5
43	Sales Agent	Matti Karttunen	USA	1 2 3 4 5
44	Sales Agent	Howard Snyder	Bulgaria	1 2 3 4 5
45	Marketing Assistant	Georg Pipps	Spain	1 2 3 4 5
46	Sales Manager	Antonio Moreno	France	1 2 3 4 5
47	Sales Associate	Jaime Yorres	Austria	1 2 3 4 5
48	Marketing Assistant	Elizabeth Lincoln	Argentina	1 2 3 4 5
49	Sales Consultant	Howard Snyder	Spain	1 2 3 4 5
50	Sales Agent	Antonio Moreno	Austria	1 2 3 4 5
51	Accountant	Paul Henriot	Bulgaria	1 2 3 4 5
52	Sales Agent	Patricio Simpson	Argentina	1 2 3 4 5
53	Sales Associate	Howard Snyder	Spain	1 2 3 4 5
54	Sales Associate	Patricio Simpson	France	1 2 3 4 5
55	Accounting Manager	Matti Karttunen	Austria	1 2 3 4 5
56	Sales Consultant	Elizabeth Lincoln	Italy	1 2 3 4 5
57	Marketing Assistant	Pascale Cartrain	Spain	1 2 3 4 5
58	Accounting Manager	Antonio Moreno	Bulgaria	1 2 3 4 5
59	Owner	Matti Karttunen	England	1 2 3 4 5
60	Owner	Jaime Yorres	France	1 2 3 4 5
61	Accountant	Elizabeth Lincoln	Argentina	1 2 3 4 5
62	Marketing Assistant	Hanna Moos	Austria	1 2 3 4 5
63	Accountant	Matti Karttunen	Argentina	1 2 3 4 5
64	Sales Associate	Howard Snyder	Bulgaria	1 2 3 4 5
65	Accountant	Hanna Moos	Italy	1 2 3 4 5
66	Sales Associate	Elizabeth Lincoln	France	1 2 3 4 5
67	Sales Manager	Georg Pipps	England	1 2 3 4 5
68	Sales Representative	Patricio Simpson	Argentina	1 2 3 4 5
69	Sales Manager	Hanna Moos	France	1 2 3 4 5
70	Accounting Manager	Antonio Moreno	USA	1 2 3 4 5
71	Sales Manager	Paul Henriot	Argentina	1 2 3 4 5
72	Accounting Manager	Pascale Cartrain	Austria	1 2 3 4 5
73	Sales Consultant	Jaime Yorres	Italy	1 2 3 4 5
74	Accountant	Matti Karttunen	Bulgaria	1 2 3 4 5
75	Sales Manager	Patricio Simpson	England	1 2 3 4 5
76	Sales Agent	Patricio Simpson	England	1 2 3 4 5
77	Sales Representative	Georg Pipps	Germany	1 2 3 4 5
78	Sales Associate	Jaime Yorres	Argentina	1 2 3 4 5
79	Sales Associate	Patricio Simpson	France	1 2 3 4 5
80	Sales Associate	Hanna Moos	Spain	1 2 3 4 5
81	Sales Consultant	Patricio Simpson	Argentina	1 2 3 4 5
82	Marketing Manager	Patricio Simpson	USA	1 2 3 4 5
83	Sales Manager	Antonio Moreno	Spain	1 2 3 4 5
84	Accountant	Patricio Simpson	Germany	1 2 3 4 5
85	Sales Consultant	Jaime Yorres	Argentina	1 2 3 4 5
86	Marketing Manager	Howard Snyder	Italy	1 2 3 4 5
87	Sales Associate	Elizabeth Lincoln	Italy	1 2 3 4 5
88	Sales Manager	Matti Karttunen	Germany	1 2 3 4 5
89	Sales Consultant	Matti Karttunen	France	1 2 3 4 5
90	Marketing Assistant	Jaime Yorres	Argentina	1 2 3 4 5
91	Sales Consultant	Pascale Cartrain	France	1 2 3 4 5
92	Sales Representative	Hanna Moos	Argentina	1 2 3 4 5
93	Marketing Manager	Patricio Simpson	Brazil	1 2 3 4 5
94	Accountant	Georg Pipps	USA	1 2 3 4 5
95	Sales Consultant	Howard Snyder	Austria	1 2 3 4 5
96	Sales Consultant	Antonio Moreno	Argentina	1 2 3 4 5
97	Sales Agent	Howard Snyder	Germany	1 2 3 4 5
98	Sales Consultant	Matti Karttunen	USA	1 2 3 4 5
99	Marketing Assistant	Howard Snyder	Argentina	1 2 3 4 5
100	Owner	Pascale Cartrain	Argentina	1 2 3 4 5


...261 262 263 264 265 266 267 268 269 270 ... Item 263001 to 264000 of 300000 Page: of 300 GoPage size:

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Columns
- ID
- Contact Title
- Contact Name
- Country
- Rating

About this demo
C#
VB
Download demo code files
Isolate this demo as a stand-alone application

RadGrid's virtualization feature allows you to handle hundreds of thousands of rows without negatively impacting the user experience. The control achieves this thanks to its ItemsPerView property allowing you to control the number of items loaded at a time. Users can now scroll, as well as show, hide, resize and reorder columns without any waiting time.

This demo shows how quickly Telerik's ASP.NET DataGrid can handle user interactions with 300,000 items. You can configure the component to allow scrolling through the entire data set or only through the current page by using EnableCurrentPageScrollOnly property,.

<%@ Page Language="c#" CodeFile="DefaultCS.aspx.cs" Inherits="Telerik.GridExamplesCSharp.Performance.Virtualization.DefaultCS" %>

<%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
<%@ Register TagPrefix="qsf" Namespace="Telerik.QuickStart" %>
<!DOCTYPE html>
<html xmlns='http://www.w3.org/1999/xhtml'>
<head runat="server">
    <title>Telerik ASP.NET Example</title>
    <link href="styles.css" rel="stylesheet" />
</head>
<body>
    <form id="form1" runat="server">
    <telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
    <telerik:RadSkinManager ID="RadSkinManager1" runat="server" ShowChooser="true" />
    <telerik:RadAjaxLoadingPanel runat="server" ID="RadAjaxLoadingPanel1"></telerik:RadAjaxLoadingPanel>
    <telerik:RadAjaxPanel runat="server" ID="RadAjaxPanel" LoadingPanelID="RadAjaxLoadingPanel1" CssClass="demo-container">
        <telerik:RadGrid RenderMode="Lightweight" ID="RadGrid1" runat="server"  AutoGenerateColumns="false"
            AllowSorting="true" GroupingEnabled="false"
            EnableHeaderContextMenu="true" AllowPaging="true" PageSize="1000" OnNeedDataSource="RadGrid1_NeedDataSource">
            <MasterTableView TableLayout="Fixed">
                <Columns>
                    <telerik:GridBoundColumn UniqueName="ID" HeaderText="ID" HeaderStyle-Width="50px" DataField="ID"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactTitle" HeaderText="Contact Title" HeaderStyle-Width="150px" DataField="ContactTitle"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactName" HeaderText="Contact Name" HeaderStyle-Width="150" DataField="ContactName"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="Country" HeaderText="Country" HeaderStyle-Width="100px" DataField="Country"></telerik:GridBoundColumn>
                    <telerik:GridRatingColumn UniqueName="Rating" HeaderText="Rating" HeaderStyle-Width="100px" DataField="Rating"></telerik:GridRatingColumn>
                </Columns>
            </MasterTableView>
            <ClientSettings ReorderColumnsOnClient="true" AllowColumnsReorder="true" ColumnsReorderMethod="Reorder">
                <Virtualization EnableVirtualization="true" InitiallyCachedItemsCount="2000"
                    LoadingPanelID="RadAjaxLoadingPanel1" ItemsPerView="100"/>
                <Scrolling AllowScroll="true" UseStaticHeaders="true" ScrollHeight="500px" />
                <Resizing AllowColumnResize="true" />
            </ClientSettings>
            <PagerStyle Mode="NextPrevNumericAndAdvanced"></PagerStyle>
        </telerik:RadGrid>
    </telerik:RadAjaxPanel>
    </form>
</body>
</html>

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