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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...171 172 173 174 175 176 177 178 179 180 ... Item 176001 to 177000 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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