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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 283001 to 284000 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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