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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 289001 to 290000 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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