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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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