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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 282001 to 283000 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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