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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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