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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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