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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 210001 to 211000 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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