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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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