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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 142001 to 143000 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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