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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 211001 to 212000 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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