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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 154001 to 155000 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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