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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 167001 to 168000 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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