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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 157001 to 158000 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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