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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 146001 to 147000 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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