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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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