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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 266001 to 267000 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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