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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 285001 to 286000 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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