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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 158001 to 159000 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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