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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 288001 to 289000 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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