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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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