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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...61 62 63 64 65 66 67 68 69 70 ... Item 64001 to 65000 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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