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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...231 232 233 234 235 236 237 238 239 240 ... Item 232001 to 233000 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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