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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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