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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...231 232 233 234 235 236 237 238 239 240 ... Item 233001 to 234000 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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