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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 261001 to 262000 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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