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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 187001 to 188000 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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