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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 270001 to 271000 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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