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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 128001 to 129000 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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