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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...251 252 253 254 255 256 257 258 259 260 ... Item 256001 to 257000 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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