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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...131 132 133 134 135 136 137 138 139 140 ... Item 137001 to 138000 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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