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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...291 292 293 294 295 296 297 298 299 300 Item 291001 to 292000 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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