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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 194001 to 195000 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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