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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...221 222 223 224 225 226 227 228 229 230 ... Item 224001 to 225000 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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