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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 179001 to 180000 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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