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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 181001 to 182000 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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