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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 168001 to 169000 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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