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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 284001 to 285000 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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