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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...251 252 253 254 255 256 257 258 259 260 ... Item 255001 to 256000 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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