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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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