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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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