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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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