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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...201 202 203 204 205 206 207 208 209 210 ... Item 204001 to 205000 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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