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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 213001 to 214000 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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