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Virtualization

ID	Contact Title	Contact Name	Country	Rating


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


...191 192 193 194 195 196 197 198 199 200 ... Item 190001 to 191000 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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