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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 173001 to 174000 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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