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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 284001 to 285000 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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