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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 275001 to 276000 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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