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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...41 42 43 44 45 46 47 48 49 50 ... Item 44001 to 45000 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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