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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...291 292 293 294 295 296 297 298 299 300 Item 295001 to 296000 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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