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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 285001 to 286000 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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