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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...201 202 203 204 205 206 207 208 209 210 ... Item 201001 to 202000 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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