http://blogs.ugidotnet.org/PietroLibroBlog/category/3288.aspx Reporting it-IT Pietro Libro pietro.libro@jumpy.it Subtext Version 2.0.0.43 http://blogs.ugidotnet.org/PietroLibroBlog/archive/2008/04/15/92210.aspx <p>Post nato da una discussione su forum. Supponiamo di avere un DataSet tipizzato contenente un oggetto DataTable "Articoli" come in figura:</p> <p><a href="http://blogs.ugidotnet.org/images/blogs_ugidotnet_org/PietroLibroBlog/WindowsLiveWriter/ReportLocaliReportDataSource_BE2B/DataSet_2.jpg"><img style="border-right: 0px; border-top: 0px; border-left: 0px; border-bottom: 0px" height="180" alt="DataSet" src="http://blogs.ugidotnet.org/images/blogs_ugidotnet_org/PietroLibroBlog/WindowsLiveWriter/ReportLocaliReportDataSource_BE2B/DataSet_thumb.jpg" width="244" border="0" /></a></p> <p>Supponiamo di avere anche un report locale del tipo:</p> <p> <a href="http://blogs.ugidotnet.org/images/blogs_ugidotnet_org/PietroLibroBlog/WindowsLiveWriter/ReportLocaliReportDataSource_BE2B/Immagine_2.jpg"><img style="border-right: 0px; border-top: 0px; border-left: 0px; border-bottom: 0px" height="88" alt="Immagine" src="http://blogs.ugidotnet.org/images/blogs_ugidotnet_org/PietroLibroBlog/WindowsLiveWriter/ReportLocaliReportDataSource_BE2B/Immagine_thumb.jpg" width="244" border="0" /></a>  </p> <p>Per associare il nostro DataTable al report, possiamo utilizzare un ReportDataSource, scrivendo del codice tipo:</p> <p> </p><div class="wlWriterSmartContent" id="scid:57F11A72-B0E5-49c7-9094-E3A15BD5B5E6:bb5281b8-20d3-4902-8121-996bee9e2a1d" style="padding-right: 0px; display: inline; padding-left: 0px; float: none; padding-bottom: 0px; margin: 0px; padding-top: 0px"><pre style="background-color:White;white-space:-moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; white-space: pre-wrap; word-wrap: break-word;;overflow: auto;"><div><!-- Code highlighting produced by Actipro CodeHighlighter (freeware) http://www.CodeHighlighter.com/ --><span style="color: #008080;"> 1</span> <span style="color: #000000;"> </span><span style="color: #0000FF;">Dim</span><span style="color: #000000;"> dsStampa </span><span style="color: #0000FF;">As</span><span style="color: #000000;"> </span><span style="color: #0000FF;">New</span><span style="color: #000000;"> DsStampa() </span><span style="color: #008080;"> 2</span> <span style="color: #000000;"> </span><span style="color: #0000FF;">Dim</span><span style="color: #000000;"> tableArticoli </span><span style="color: #0000FF;">As</span><span style="color: #000000;"> </span><span style="color: #0000FF;">New</span><span style="color: #000000;"> DsStampa.ArticoliDataTable() </span><span style="color: #008080;"> 3</span> <span style="color: #000000;"> </span><span style="color: #008080;"> 4</span> <span style="color: #000000;"> </span><span style="color: #008000;">'</span><span style="color: #008000;">Aggiungo un paio di righe</span><span style="color: #008000;"> </span><span style="color: #008080;"> 5</span> <span style="color: #008000;"></span><span style="color: #000000;"> </span><span style="color: #0000FF;">Dim</span><span style="color: #000000;"> articoloRow </span><span style="color: #0000FF;">As</span><span style="color: #000000;"> DsStampa.ArticoliRow </span><span style="color: #000000;">=</span><span style="color: #000000;"> tableArticoli.NewArticoliRow() </span><span style="color: #008080;"> 6</span> <span style="color: #000000;"> articoloRow.Codice </span><span style="color: #000000;">=</span><span style="color: #000000;"> </span><span style="color: #800000;">"</span><span style="color: #800000;">CODICE A</span><span style="color: #800000;">"</span><span style="color: #000000;"> </span><span style="color: #008080;"> 7</span> <span style="color: #000000;"> articoloRow.Descrizione </span><span style="color: #000000;">=</span><span style="color: #000000;"> </span><span style="color: #800000;">"</span><span style="color: #800000;"> DESCRIZIONE 1</span><span style="color: #800000;">"</span><span style="color: #000000;"> </span><span style="color: #008080;"> 8</span> <span style="color: #000000;"> tableArticoli.Rows.Add(articoloRow) </span><span style="color: #008080;"> 9</span> <span style="color: #000000;"> </span><span style="color: #008080;">10</span> <span style="color: #000000;"> articoloRow </span><span style="color: #000000;">=</span><span style="color: #000000;"> tableArticoli.NewArticoliRow() </span><span style="color: #008080;">11</span> <span style="color: #000000;"> articoloRow.Codice </span><span style="color: #000000;">=</span><span style="color: #000000;"> </span><span style="color: #800000;">"</span><span style="color: #800000;">CODICE B</span><span style="color: #800000;">"</span><span style="color: #000000;"> </span><span style="color: #008080;">12</span> <span style="color: #000000;"> articoloRow.Descrizione </span><span style="color: #000000;">=</span><span style="color: #000000;"> </span><span style="color: #800000;">"</span><span style="color: #800000;"> DESCRIZIONE 2</span><span style="color: #800000;">"</span><span style="color: #000000;"> </span><span style="color: #008080;">13</span> <span style="color: #000000;"> tableArticoli.Rows.Add(articoloRow) </span><span style="color: #008080;">14</span> <span style="color: #000000;"> </span><span style="color: #008080;">15</span> <span style="color: #000000;"> </span><span style="color: #0000FF;">Dim</span><span style="color: #000000;"> reportDataSource </span><span style="color: #0000FF;">As</span><span style="color: #000000;"> </span><span style="color: #0000FF;">New</span><span style="color: #000000;"> Microsoft.Reporting.WinForms.ReportDataSource() </span><span style="color: #008080;">16</span> <span style="color: #000000;"> </span><span style="color: #008080;">17</span> <span style="color: #000000;"> reportDataSource.Name </span><span style="color: #000000;">=</span><span style="color: #000000;"> </span><span style="color: #800000;">"</span><span style="color: #800000;">DsStampa_Articoli</span><span style="color: #800000;">"</span><span style="color: #000000;"> </span><span style="color: #008080;">18</span> <span style="color: #000000;"> reportDataSource.Value </span><span style="color: #000000;">=</span><span style="color: #000000;"> tableArticoli </span><span style="color: #008080;">19</span> <span style="color: #000000;"> </span><span style="color: #008080;">20</span> <span style="color: #000000;"> </span><span style="color: #0000FF;">Me</span><span style="color: #000000;">.ReportViewer1.LocalReport.ReportPath </span><span style="color: #000000;">=</span><span style="color: #000000;"> </span><span style="color: #800000;">"</span><span style="color: #800000;">Report1.rdlc</span><span style="color: #800000;">"</span><span style="color: #000000;"> </span><span style="color: #008080;">21</span> <span style="color: #000000;"> </span><span style="color: #0000FF;">Me</span><span style="color: #000000;">.ReportViewer1.LocalReport.DataSources.Clear() </span><span style="color: #008080;">22</span> <span style="color: #000000;"> </span><span style="color: #0000FF;">Me</span><span style="color: #000000;">.ReportViewer1.LocalReport.DataSources.Add(reportDataSource) </span><span style="color: #008080;">23</span> <span style="color: #000000;"> </span><span style="color: #0000FF;">Me</span><span style="color: #000000;">.ReportViewer1.RefreshReport()</span></div></pre><!-- Code inserted with Steve Dunn's Windows Live Writer Code Formatter Plugin. http://dunnhq.com --></div> <p>E' importante non sbagliare ad impostare la stringa della proprietà <em>Name </em>della nostra istanza di reportDataSource con il valore presente nelle proprietà <em>Table</em> del report</p> <p><a href="http://blogs.ugidotnet.org/images/blogs_ugidotnet_org/PietroLibroBlog/WindowsLiveWriter/ReportLocaliReportDataSource_BE2B/Immagine_4.jpg"><img style="border-right: 0px; border-top: 0px; border-left: 0px; border-bottom: 0px" height="233" alt="Immagine" src="http://blogs.ugidotnet.org/images/blogs_ugidotnet_org/PietroLibroBlog/WindowsLiveWriter/ReportLocaliReportDataSource_BE2B/Immagine_thumb_1.jpg" width="244" border="0" /></a></p> <p>altrimenti all'interno del ReportViewer verrebbe notificato un errore che indica che non è stata fornita nessuna sorgente dati</p> <p><a href="http://blogs.ugidotnet.org/images/blogs_ugidotnet_org/PietroLibroBlog/WindowsLiveWriter/ReportLocaliReportDataSource_BE2B/Immagine1_2.jpg"><img style="border-right: 0px; border-top: 0px; border-left: 0px; border-bottom: 0px" height="139" alt="Immagine1" src="http://blogs.ugidotnet.org/images/blogs_ugidotnet_org/PietroLibroBlog/WindowsLiveWriter/ReportLocaliReportDataSource_BE2B/Immagine1_thumb.jpg" width="244" border="0" /></a> </p> <p>Codice sorgente: <a href="http://www.pietrolibro.name/sources/test report.zip" target="_blank">Test Report.zip</a></p> <p> </p> <p> </p><div class="wlWriterSmartContent" id="scid:0767317B-992E-4b12-91E0-4F059A8CECA8:68c2e4ac-e02e-4115-ba67-f1fd2603a1a4" style="padding-right: 0px; display: inline; padding-left: 0px; padding-bottom: 0px; margin: 0px; padding-top: 0px">Technorati Tag: <a href="http://technorati.com/tags/ReportDataSource" rel="tag">ReportDataSource</a></div><img src="http://blogs.ugidotnet.org/PietroLibroBlog/aggbug/92210.aspx" width="1" height="1" /> Pietro Libro http://blogs.ugidotnet.org/PietroLibroBlog/archive/2008/04/15/92210.aspx Tue, 15 Apr 2008 09:07:50 GMT http://blogs.ugidotnet.org/PietroLibroBlog/archive/2008/04/15/92210.aspx#feedback 2 http://blogs.ugidotnet.org/PietroLibroBlog/comments/commentRss/92210.aspx http://blogs.ugidotnet.org/PietroLibroBlog/services/trackbacks/92210.aspx