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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...291 292 293 294 295 296 297 298 299 300 Item 296001 to 297000 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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