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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 278001 to 279000 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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