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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 132001 to 133000 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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