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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 162001 to 163000 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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