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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 137001 to 138000 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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