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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 272001 to 273000 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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