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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 274001 to 275000 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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