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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 121001 to 122000 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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