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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 278001 to 279000 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="vb" AutoEventWireup="false" CodeFile="DefaultVB.aspx.vb" Inherits="Telerik.GridExamplesVBNET.Performance.Virtualization.DefaultVB" %>

<%@ 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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