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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 124001 to 125000 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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