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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...121 122 123 124 125 126 127 128 129 130 ... Item 125001 to 126000 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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