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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 187001 to 188000 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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