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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...291 292 293 294 295 296 297 298 299 300 Item 298001 to 299000 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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