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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 212001 to 213000 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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