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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 184001 to 185000 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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