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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...61 62 63 64 65 66 67 68 69 70 ... Item 63001 to 64000 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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