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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 146001 to 147000 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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