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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 177001 to 178000 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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