Add records to related table in ArcGIS Runtime SDK for .NET WPF

SailiTang1

Hi,

I am using ArcGIS runtime SDK for .NET V100.5 to develop a WPF application. The application’s feature layer has a related table and attachment enabled, so it has 2 relationship classes. For attachments, I have no problem because ESRI is providing several API to read/write them. But for the other related table, I created a table first and then a relationship class between this table and my application’s feature layer (My app has only one editable feature layer.)  My app needs to be able to read and write the table. I find some samples which show how to retrieve(read) data from related table, but cannot find the one which show how to write data into the related table. I am wondering if a related table is not able to be written? If it can be, how to do it? Thanks.

 

Saili

JoeHershman

Hi,

I just put up a post about an issue I had with creating relationship (due to my own fault in the end),  RelateFeature not creating relationship in offline data 

Here is a sample of how the relationship is created.  In this specific example I loop through a set of features to create relationships, but should be pretty straight forward to modify for a single feature.  If you were to be changing after the initial creation you could use UpdateFeatureAsync as is mentioned in the post

<SPAN class="keyword token">foreach</SPAN> <SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">var</SPAN> vertexInfo <SPAN class="keyword token">in</SPAN> Vertices<SPAN class="punctuation token">)</SPAN>
<SPAN class="punctuation token">{</SPAN>
     <SPAN class="keyword token">var</SPAN> vertexFeature <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">(</SPAN>ArcGISFeature<SPAN class="punctuation token">)</SPAN> vertexTable<SPAN class="punctuation token">.</SPAN><SPAN class="token function">CreateFeature</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
     vertexFeature<SPAN class="punctuation token">.</SPAN>Geometry <SPAN class="operator token">=</SPAN> vertexInfo<SPAN class="punctuation token">.</SPAN>MapPoint<SPAN class="punctuation token">;</SPAN>

     <SPAN class="keyword token">if</SPAN> <SPAN class="punctuation token">(</SPAN> vertexInfo<SPAN class="punctuation token">.</SPAN>NmeaLocation <SPAN class="operator token">!=</SPAN> <SPAN class="keyword token">null</SPAN> <SPAN class="punctuation token">)</SPAN>
     <SPAN class="punctuation token">{</SPAN>
          <SPAN class="token function">UpdateGpsAttributes</SPAN><SPAN class="punctuation token">(</SPAN>vertexFeature<SPAN class="punctuation token">,</SPAN> vertexInfo<SPAN class="punctuation token">.</SPAN>NmeaLocation<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
     <SPAN class="punctuation token">}</SPAN>

     <SPAN class="comment token">// await vertexTable.AddFeatureAsync(vertexFeature); - moved below</SPAN>

     Log<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Debug</SPAN><SPAN class="punctuation token">(</SPAN>$<SPAN class="string token">"Relate Feature Origin: {feature.FeatureTable.TableName}:{feature.GetAttributeValue("</SPAN>OBJECTID<SPAN class="string token">")}"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

     feature<SPAN class="punctuation token">.</SPAN><SPAN class="token function">RelateFeature</SPAN><SPAN class="punctuation token">(</SPAN>vertexFeature<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
      
      <SPAN class="comment token">// Move to after RelateFeature</SPAN>
      <SPAN class="keyword token">await</SPAN> vertexTable<SPAN class="punctuation token">.</SPAN><SPAN class="token function">AddFeatureAsync</SPAN><SPAN class="punctuation token">(</SPAN>vertexFeature<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

     Log<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Debug</SPAN><SPAN class="punctuation token">(</SPAN>$<SPAN class="string token">"Relate Feature Destination: {vertexFeature.FeatureTable.TableName}:{vertexFeature.GetAttributeValue("</SPAN>OBJECTID<SPAN class="string token">")}"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="punctuation token">}</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>