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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...291 292 293 294 295 296 297 298 299 300 Item 294001 to 295000 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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