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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 289001 to 290000 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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