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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...161 162 163 164 165 166 167 168 169 170 ... Item 161001 to 162000 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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