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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 188001 to 189000 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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