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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 190001 to 191000 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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