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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 240001 to 241000 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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