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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...231 232 233 234 235 236 237 238 239 240 ... Item 236001 to 237000 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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