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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 260001 to 261000 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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