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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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