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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 199001 to 200000 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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