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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 282001 to 283000 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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