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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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