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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 136001 to 137000 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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