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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 271001 to 272000 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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