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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...261 262 263 264 265 266 267 268 269 270 ... Item 268001 to 269000 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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