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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 161001 to 162000 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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