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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 152001 to 153000 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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