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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 148001 to 149000 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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