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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 154001 to 155000 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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