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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 221001 to 222000 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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