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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...291 292 293 294 295 296 297 298 299 300 Item 297001 to 298000 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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