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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 198001 to 199000 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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