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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 286001 to 287000 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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