Latest Contributions by JingjingLi

Yep. Tried everything but still no luck. Even tried remove the tooltip from json but it still does the same. ... View more

{     "services": [{             "type": "Map Service",             "serviceurl": "https://tiles.arcgis.com/tiles/okWBWNlpfMx5q1bT/arcgis/rest/services/PlanningTeamArea_agspro/MapServer",             "size": 926219,             "serviceItemId": "dc7ee927d0e242bc8de5200634532de1",             "encodedServiceURL": "https://tiles.arcgis.com/tiles/okWBWNlpfMx5q1bT/arcgis/rest/services/PlanningTeamArea_agspro/MapServer"         }     ] } that's the response from the publish service url, and obviously there is no jobId in it. ... View more

And I tested the same script using version 1.0.1 and it worked. I am currently running 1.2.1. ... View more

Yep. The job id is supposed to be generated by arcgisonline but I don't see it anywhere. ... View more

As far as I know. It is a dictionary. And according to this sample, I don't see what's wrong with my script. ... View more

Does esri have any plan to add the 3D measurement tool to ArcGIS Earth? Or to Web Scene viewer in ArcGIS Online or portal? ... View more

Finally I found the reason. The application has a FeatureDataGrid binding to the FeatureLayer. I have to set both FeatureDataGrid.Map and FeatureDataGrid.GraphicsLayer to null before I can assign a null value to g.Attribute["UPDATEDATE"]. See code below, theFeatureDataGrid.Map = null;             theFeatureDataGrid.GraphicsLayer = null;             ESRI.ArcGIS.Client.FeatureLayer fl = theMap.Layers["flyr_RoadClosureLocations"] as ESRI.ArcGIS.Client.FeatureLayer;             foreach (ESRI.ArcGIS.Client.Graphic g in fl.Graphics)             {                 if (g.Attributes["UPID"].ToString() == "CAB_035")                 {                     g.Attributes["UPDATEDATE"] = null;                 }             }             theFeatureDataGrid.Map = theMap;             theFeatureDataGrid.GraphicsLayer = fl; And it works. ... View more

You are right, by default DateField has a default length of 36. You can try the following feature service that has a nullable DateField. Setting the attribute value to null does not raise any exception. You can wire up to EndSaveEdits and SaveEditsFailed to see that this new value is actually saved. FeatureLayer layer = new FeatureLayer() { Url = "http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/HomelandSecurity/operations/FeatureServer/0", OutFields = new ESRI.ArcGIS.Client.Tasks.OutFields() { "*" } }; layer.Initialized += (s,e) => { layer.Update(); }; layer.UpdateCompleted += (s,e) => { var graphic = layer.Graphics.FirstOrDefault(g => (int)g.Attributes["objectid"] == 105635); graphic.Attributes["collection_time"] = null; }; layer.Initialize(); If you are still experiencing issues please explain your use case with details about the data and application workflow so we can reproduce it here. Thanks. I tried the easiest way to populate the field but still get a NullReferenceException error. ESRI.ArcGIS.Client.FeatureLayer fl = theMap.Layers["flyr_RoadClosureLocations"] as ESRI.ArcGIS.Client.FeatureLayer;             foreach (ESRI.ArcGIS.Client.Graphic g in fl.Graphics)             {                 if (g.Attributes["UPID"].ToString() == "CAB_035")                 {                     MessageBox.Show(g.Attributes["UPDATEDATE"].ToString());                     g.Attributes["UPDATEDATE"] = null;                 }             } I uploaded three screenshots to show the settings of the feature class, the layer and the feature service. In the Silverlight App, I tried both 2.1 and 2.2 API but get the same error. Environment: ArcSDE 10 Sp1 ArcGIS Server 10 Sp1 ... View more

I guess DateTime is Non-Nullable DataType so setting it to null won't work. Try setting it to null as follows: g.Attributes["UPDATEDATE"] = new DateTime?(); It throws a NullReferenceException error. I think it is the same as g.Attributes["UPDATEDATE"] = null . ... View more

I think that since you gave a length requirement, a validation exception will be thrown if this is not met. If you made g.Attributes["UPDATEDATE"] = null. If you remove this length requirement, I think you should be able to set it to a null value without validation exception. How can you remove the length of a Date field? I think by default you can only setup the field type and nullable for a Date field. ... View more

Graphic.Attributes["DateField"] = null should work. Are you saying it doesn't? It not, what happens when you try that? No it does not work. It throws a NullReferenceException. foreach (ESRI.ArcGIS.Client.Graphic g in fl.Graphics)                 {                     if ((int)g.Attributes["OBJECTID"] == objid)                     {                         IDictionary<string, object> att = g.Attributes;                         if (att["UPDATETIME"] != null)                         {                             att["UPDATETIME"] = "";                         }                         if (att["UPDATEDATE"] != null)                         {                             //UpdateDate is a Date field                             att["UPDATEDATE"] = null;                         }                         if (att["DESCRIPTION"] != null)                         {                             att["DESCRIPTION"] = "";                         }                                             }                 } It's strange. For these records that have null value in the date field. I am able to get the null value from the Attributes property. Just not able to write a null value to it. ... View more

UPDATEDATE (Type: esriFieldTypeDate, Alias: UPDATEDATE, Length: 36, Editable: True) And 'Allow Null values' on the field is set to true. This is actually the default Date field setting. I don't think I can create a Date field with a specific length. Does this mean you cannot update the date value to null in silverlight? ... View more