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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 287001 to 288000 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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