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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 268001 to 269000 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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