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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 276001 to 277000 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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