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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 178001 to 179000 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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