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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 131001 to 132000 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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