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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 143001 to 144000 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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