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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...241 242 243 244 245 246 247 248 249 250 ... Item 245001 to 246000 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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