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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 240001 to 241000 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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