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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...291 292 293 294 295 296 297 298 299 300 Item 294001 to 295000 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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