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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 273001 to 274000 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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