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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 263001 to 264000 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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