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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 171001 to 172000 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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