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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 135001 to 136000 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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