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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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