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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 170001 to 171000 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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