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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 130001 to 131000 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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