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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...201 202 203 204 205 206 207 208 209 210 ... Item 208001 to 209000 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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