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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 130001 to 131000 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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