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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 243001 to 244000 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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