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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...211 212 213 214 215 216 217 218 219 220 ... Item 211001 to 212000 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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