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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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