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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 171001 to 172000 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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