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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 169001 to 170000 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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