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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...101 102 103 104 105 106 107 108 109 110 ... Item 105001 to 106000 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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