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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...291 292 293 294 295 296 297 298 299 300 Item 293001 to 294000 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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