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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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