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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...281 282 283 284 285 286 287 288 289 290 ... Item 284001 to 285000 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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