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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 165001 to 166000 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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