I'm creating a tool that allows users to create new features based on the graphic returned by a DrawObject.I've added the following event handler for my DrawObject
/// <summary>
/// Rectangle_DrawObject DrawComplete event handler
/// Adds user drawn rectangle to Projects FeatureLayer
/// </summary>
/// <param name="sender"></param>
/// <param name="args">DrawEventArgs</param>
private void Rectangle_DrawObject_DrawComplete(object sender, DrawEventArgs args)
{
Rectangle_DrawObject.IsEnabled = false;
//Ready the graphic
Graphic graphic = new Graphic()
{
Geometry = args.Geometry
};
// Input spatial reference for buffer operation defined by first feature of input geometry array
graphic.Geometry.SpatialReference = Map.SpatialReference;
AddProjectGraphic(graphic);
}
The AddProjectGraphic method adds the attributes and adds the graphic to the feature layer /// <summary>
/// AddProjectGraphic
/// Adds graphic to Projects_Edit featurelayer
/// </summary>
/// <param name="graphic">Graphic to be added</param>
private void AddProjectGraphic(Graphic graphic)
{
// Retrieve the Projects featurelayer from the application
FeatureLayer projects = Map.Layers["Projects_Edit"] as FeatureLayer;
// add attributes to the graphic
// loop through the field list
foreach (var field in projects.LayerInfo.Fields)
{
// only add fields that are editable and set to null
if (field.Editable) {
graphic.Attributes[field.Name] = null;
}
} // end loop
// Add the buffered line graphic to the featurelayer
if (projects != null)
{
projects.Graphics.Add(graphic);
// turn off datagrid/turn on dataform
DocumentFeatureDataGrid.Visibility = Visibility.Collapsed;
DocumentFeatureDataForm.Visibility = Visibility.Visible;
// set the data forms source to new graphic
DocumentFeatureDataForm.GraphicSource = graphic;
}
}
The problem is that when the DrawObject is in Rectangle mode, it returns a null geometry. Here is the results from fiddler...[{,"attributes":{"BARCODE":null,"BAR_IMAGE":null,"DELETE_POLY":null,"DOCHYPERLINK":null,"PROJECT_NAME":null,"PRINT_DATE":null,"FILENUMBER":null,"SHEET_NUMBER":null,"SHEET_TOTAL":null,"COMMUNITY":null,"AVAILABLE":null,"QC":null,"QCDATE":null,"QCUSER":null}}]If the DrawObject is in Polygon mode, it works just fine. Here are the polygon results from fiddler...[{"geometry":{"spatialReference":{"wkt":"PROJCS[\"NAD_1983_StatePlane_Michigan_South_FIPS_2113_IntlFeet\",GEOGCS[\"GCS_North_American_1983\",DATUM[\"D_North_American_1983\",SPHEROID[\"GRS_1980\",6378137.0,298.257222101]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]],PROJECTION[\"Lambert_Conformal_Conic\"],PARAMETER[\"False_Easting\",13123359.58005249],PARAMETER[\"False_Northing\",0.0],PARAMETER[\"Central_Meridian\",-84.36666666666666],PARAMETER[\"Standard_Parallel_1\",42.1],PARAMETER[\"Standard_Parallel_2\",43.66666666666666],PARAMETER[\"Latitude_Of_Origin\",41.5],UNIT[\"Foot\",0.3048]]"},"rings":[[[12761546.5763327,543598.139940832],[12761922.406962,541437.113822478],[12759573.465529,541437.113822478],[12759479.5078716,544161.885884751],[12760419.0844448,542752.521024954],[12761546.5763327,543598.139940832]]]},"attributes":{"BARCODE":"testpolygonforfiddler","BAR_IMAGE":null,"DELETE_POLY":null,"DOCHYPERLINK":null,"PROJECT_NAME":null,"PRINT_DATE":null,"FILENUMBER":null,"SHEET_NUMBER":null,"SHEET_TOTAL":null,"COMMUNITY":null,"AVAILABLE":null,"QC":null,"QCDATE":null,"QCUSER":null}}]
Why doesn't the rectangle have a geometry when the polygon does?Thanks,Craig
