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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...111 112 113 114 115 116 117 118 119 120 ... Item 110001 to 111000 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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