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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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