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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...151 152 153 154 155 156 157 158 159 160 ... Item 155001 to 156000 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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