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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...91 92 93 94 95 96 97 98 99 100 ... Item 96001 to 97000 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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