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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 133001 to 134000 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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