SilverlightShow: Paging WCF Ria Services entities in Model-View-ViewModel applications Comments
http://www.silverlightshow.net/
Silverlight articles, Silverlight tutorials, Silverlight videos, Silverlight samplesSilverlightShow.nethttp://www.rssboard.org/rss-specificationArgotic Syndication Framework 2008.0.2.0, http://www.codeplex.com/Argoticen-USestoychev@completit.com (Emil Stoychev)Re: Paging WCF Ria Services entities in Model-View-ViewModel applications<p>This helped me a lot!!</p>
<p>I had to apply the fixes suggested by HC and I also had to override the Count() method in my DomainService class as mentioned in:</p>
<pre style="font-family: consolas; font-size: 13px; color: black; background: none repeat scroll 0% 0% white;"><span style="color: green;"> http://silverlightfeeds.com/post/2900/WCF_RIA_Services_and_TotalEntitiesCount-1.aspx</span>
</pre>
http://www.silverlightshow.net/items/Paging-WCF-Ria-Services-entities-in-Model-View-ViewModel-applications.aspx#comment7338
mateofdhttp://www.silverlightshow.net/items/Paging-WCF-Ria-Services-entities-in-Model-View-ViewModel-applications.aspxThu, 22 Dec 2011 21:49:12 GMTRE: Paging WCF Ria Services entities in Model-View-ViewModel applicationsThanks! That post is very-very helpful!
http://www.silverlightshow.net/items/Paging-WCF-Ria-Services-entities-in-Model-View-ViewModel-applications.aspx#comment5500
ielektronickhttp://www.silverlightshow.net/items/Paging-WCF-Ria-Services-entities-in-Model-View-ViewModel-applications.aspxMon, 14 Feb 2011 18:20:12 GMTRE: Paging WCF Ria Services entities in Model-View-ViewModel applicationsThank you, very great article! I have only one question: How <span lang="en" class="short_text" id="result_box"><span class="hps" title="Zur Anzeige alternativer Übersetzungen klicken">I</span> <span class="hps" title="Zur Anzeige alternativer Übersetzungen klicken">notice</span> <span class="hps" title="Zur Anzeige alternativer Übersetzungen klicken">that the</span> <span class="hps" title="Zur Anzeige alternativer Übersetzungen klicken">loading</span> <span class="hps" title="Zur Anzeige alternativer Übersetzungen klicken">is</span> <span class="hps" title="Zur Anzeige alternativer Übersetzungen klicken">complete? I have some methods that should start when<span lang="en" id="result_box"><span class="hps" title="Zur Anzeige alternativer Übersetzungen klicken"></span> <span class="hps" title="Zur Anzeige alternativer Übersetzungen klicken">the</span> <span class="hps" title="Zur Anzeige alternativer Übersetzungen klicken">data</span> <span class="hps" title="Zur Anzeige alternativer Übersetzungen klicken">are </span></span></span></span>loades.
http://www.silverlightshow.net/items/Paging-WCF-Ria-Services-entities-in-Model-View-ViewModel-applications.aspx#comment5456
Christian Schmidtchenhttp://www.silverlightshow.net/items/Paging-WCF-Ria-Services-entities-in-Model-View-ViewModel-applications.aspxTue, 08 Feb 2011 17:25:15 GMTRE: Paging WCF Ria Services entities in Model-View-ViewModel applicationsThanks 4 article!
http://www.silverlightshow.net/items/Paging-WCF-Ria-Services-entities-in-Model-View-ViewModel-applications.aspx#comment5393
Alekseyhttp://www.silverlightshow.net/items/Paging-WCF-Ria-Services-entities-in-Model-View-ViewModel-applications.aspxThu, 27 Jan 2011 05:48:11 GMTRE: Paging WCF Ria Services entities in Model-View-ViewModel applications<p>Nice work but it seams that your PagedDataSource does not notify the interface when an entity is added or removed from the inner EntitySet....</p>
http://www.silverlightshow.net/items/Paging-WCF-Ria-Services-entities-in-Model-View-ViewModel-applications.aspx#comment5068
Marc Ederwindhttp://www.silverlightshow.net/items/Paging-WCF-Ria-Services-entities-in-Model-View-ViewModel-applications.aspxTue, 14 Dec 2010 16:04:09 GMTRE: Paging WCF Ria Services entities in Model-View-ViewModel applicationscachig is not implemented. you can do it by yourself in the method that retrieve the data.
http://www.silverlightshow.net/items/Paging-WCF-Ria-Services-entities-in-Model-View-ViewModel-applications.aspx#comment4855
Andrea Boschinhttp://www.silverlightshow.net/items/Paging-WCF-Ria-Services-entities-in-Model-View-ViewModel-applications.aspxSun, 14 Nov 2010 11:08:02 GMTRE: Paging WCF Ria Services entities in Model-View-ViewModel applications<p>This is a great article, but i have some issues about performance , how can i get data from webservice just one time.</p>
<p>In your example in every change in page index , we need to request the data from webservice.</p>
http://www.silverlightshow.net/items/Paging-WCF-Ria-Services-entities-in-Model-View-ViewModel-applications.aspx#comment4854
Eyad Al-Hodianihttp://www.silverlightshow.net/items/Paging-WCF-Ria-Services-entities-in-Model-View-ViewModel-applications.aspxSun, 14 Nov 2010 11:04:33 GMTRE: Paging WCF Ria Services entities in Model-View-ViewModel applications<p>Excellent article, Andrea.</p>
<p>The behavior HC mentioned happened to me as well, HC's solution fixed it.</p>
<p>Best regards,</p>
<p>Long Xue</p>
http://www.silverlightshow.net/items/Paging-WCF-Ria-Services-entities-in-Model-View-ViewModel-applications.aspx#comment4821
Long Xuehttp://www.silverlightshow.net/items/Paging-WCF-Ria-Services-entities-in-Model-View-ViewModel-applications.aspxFri, 05 Nov 2010 18:44:19 GMTRE: Paging WCF Ria Services entities in Model-View-ViewModel applications<p>Yes, i'm referring to the attached project. </p>
<p>When i run the project if i click last page in the DataPager and after that i click the next page the datapager goes to the next page.</p>
<p></p>
http://www.silverlightshow.net/items/Paging-WCF-Ria-Services-entities-in-Model-View-ViewModel-applications.aspx#comment4743
HChttp://www.silverlightshow.net/items/Paging-WCF-Ria-Services-entities-in-Model-View-ViewModel-applications.aspxMon, 25 Oct 2010 15:39:16 GMTRE: Paging WCF Ria Services entities in Model-View-ViewModel applications<p>Are you referring to the attached project? I didn't observed the described behavior in my example. Are you sure your ria service is returning the correct TotalEntitiesCount?</p>
<p>bye.</p>
http://www.silverlightshow.net/items/Paging-WCF-Ria-Services-entities-in-Model-View-ViewModel-applications.aspx#comment4741
Andrea Boschinhttp://www.silverlightshow.net/items/Paging-WCF-Ria-Services-entities-in-Model-View-ViewModel-applications.aspxMon, 25 Oct 2010 14:50:02 GMTRE: Paging WCF Ria Services entities in Model-View-ViewModel applications<p>Hello,</p>
<p>You have some bugs in the class PagedDataSource. That bugs made possible to go after the last page in the DataPager.</p>
<p> Changes need to fix that behavior.</p>
<p></p>
<pre style="font-family: consolas;"><span style="color: blue;">public</span> <span style="color: blue;">bool</span> MoveToLastPage()<br /> {<br /> <span style="color: blue;">this</span>.PageIndex = <span style="color: #2b91af;">Math</span>.Max(1, (<span style="color: blue;">int</span>)<span style="color: #2b91af;">Math</span>.Ceiling((<span style="color: blue;">double</span>)(((<span style="color: blue;">double</span>)<span style="color: blue;">this</span>.ItemCount) / ((<span style="color: blue;">double</span>)<span style="color: blue;">this</span>.PageSize)))) - 1;<br /> <span style="color: blue;">this</span>.Refresh();<br /> <span style="color: blue;">return</span> <span style="color: blue;">true</span>;<br /> }</pre>
<pre style="font-family: consolas;"> <span style="color: blue;">public</span> <span style="color: blue;">bool</span> MoveToNextPage()<br /> {<br /> <span style="color: blue;">int</span> maxPage = <span style="color: #2b91af;">Math</span>.Max(1, (<span style="color: blue;">int</span>)<span style="color: #2b91af;">Math</span>.Ceiling((<span style="color: blue;">double</span>)(((<span style="color: blue;">double</span>)<span style="color: blue;">this</span>.ItemCount) / ((<span style="color: blue;">double</span>)<span style="color: blue;">this</span>.PageSize))));<br /> <span style="color: blue;">if</span> (pageIndex < (maxPage -1))<br /> {<br /> <span style="color: blue;">this</span>.PageIndex++;<br /> <span style="color: blue;">this</span>.Refresh();<br /> <span style="color: blue;">return</span> <span style="color: blue;">true</span>;<br /> }<br /> <br /> <span style="color: blue;">return</span> <span style="color: blue;">false</span>;<br /> }</pre>
<pre style="font-family: consolas;"><span style="color: blue;">public</span> <span style="color: blue;">bool</span> MoveToPage(<span style="color: blue;">int</span> pageIndex)<br /> {<br /> <span style="color: blue;">int</span> maxPage = <span style="color: #2b91af;">Math</span>.Max(1, (<span style="color: blue;">int</span>)<span style="color: #2b91af;">Math</span>.Ceiling((<span style="color: blue;">double</span>)(((<span style="color: blue;">double</span>)<span style="color: blue;">this</span>.ItemCount) / ((<span style="color: blue;">double</span>)<span style="color: blue;">this</span>.PageSize))));<br /> <span style="color: blue;">if</span> (pageIndex >= 0 && pageIndex < maxPage)<br /> {<br /> <span style="color: blue;">this</span>.PageIndex = pageIndex;<br /> <span style="color: blue;">this</span>.Refresh();<br /> <span style="color: blue;">return</span> <span style="color: blue;">true</span>;<br /> }<br /> <br /> <span style="color: blue;">return</span> <span style="color: blue;">false</span>;<br /> }<br /><br />In the code of the view you have the dataPager, if you register the PageIndexChangedEvent to the following method you disable the next button when in the last page.</pre>
<pre style="font-family: consolas;"> <span style="color: blue;">void</span> pager_PageIndexChanged(<span style="color: blue;">object</span> sender, <span style="color: #2b91af;">EventArgs</span> e)<br /> {<br /> <span style="color: blue;">var</span> pager = (<span style="color: #2b91af;">DataPager</span>)sender;<br /> <br /> <span style="color: blue;">int</span> pageCount = <span style="color: #2b91af;">Math</span>.Max(1, (<span style="color: blue;">int</span>)<span style="color: #2b91af;">Math</span>.Ceiling((<span style="color: blue;">double</span>)(((<span style="color: blue;">double</span>)pager.ItemCount) / ((<span style="color: blue;">double</span>)pager.PageSize))));<br /> <span style="color: blue;">if</span> (pager.PageIndex == pageCount - 1)<br /> {<br /> pager.IsTotalItemCountFixed = <span style="color: blue;">true</span>;<br /> }<br /> <span style="color: blue;">else</span> pager.IsTotalItemCountFixed = <span style="color: blue;">false</span>;<br /> <br /> }</pre>
<br />
<br />
<p></p>
http://www.silverlightshow.net/items/Paging-WCF-Ria-Services-entities-in-Model-View-ViewModel-applications.aspx#comment4740
HChttp://www.silverlightshow.net/items/Paging-WCF-Ria-Services-entities-in-Model-View-ViewModel-applications.aspxMon, 25 Oct 2010 14:29:10 GMT