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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...251 252 253 254 255 256 257 258 259 260 ... Item 252001 to 253000 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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