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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 138001 to 139000 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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