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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...181 182 183 184 185 186 187 188 189 190 ... Item 186001 to 187000 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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