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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 162001 to 163000 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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