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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 158001 to 159000 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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