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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...291 292 293 294 295 296 297 298 299 300 Item 291001 to 292000 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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