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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 179001 to 180000 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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