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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 272001 to 273000 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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