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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 144001 to 145000 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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