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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 283001 to 284000 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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