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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 166001 to 167000 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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