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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 268001 to 269000 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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