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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 282001 to 283000 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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