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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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