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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...271 272 273 274 275 276 277 278 279 280 ... Item 270001 to 271000 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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