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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...141 142 143 144 145 146 147 148 149 150 ... Item 143001 to 144000 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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