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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 178001 to 179000 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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