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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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