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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 281001 to 282000 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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