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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 279001 to 280000 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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