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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 141001 to 142000 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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