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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 163001 to 164000 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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