ArcGIS Pro 3.2 API Reference Guide
ArcGIS.Desktop.Editing Namespace / EditOperation Class / Modify Method / Modify(Row,Int32,Object) Method
The row to update.
The field index to update.
The new value.
Example

In This Topic
    Modify(Row,Int32,Object) Method
    In This Topic
    Modify a row, updating the attribute values. This method must be called on the MCT. Use QueuedTask.Run.
    Syntax
    public void Modify( 
       Row row,
       int fieldIndex,
       object value
    )
    Public Overloads Sub Modify( _
       ByVal row As Row, _
       ByVal fieldIndex As Integer, _
       ByVal value As Object _
    ) 

    Parameters

    row
    The row to update.
    fieldIndex
    The field index to update.
    value
    The new value.
    Exceptions
    ExceptionDescription
    This method or property must be called within the lambda passed to QueuedTask.Run.
    Example
    Update Annotation Text via attribute. Caveat: The TEXTSTRING Anno attribute must exist
    //See "Change Annotation Text Graphic" for an alternative if TEXTSTRING is missing from the schema
    await QueuedTask.Run(() =>
    {
        //annoLayer is ~your~ Annotation layer...
    
        // use the inspector methodology
        var insp = new Inspector();
        insp.Load(annoLayer, oid);
    
        // make sure TextString attribute exists.
        //It is not guaranteed to be in the schema
        ArcGIS.Desktop.Editing.Attributes.Attribute att = insp.FirstOrDefault(a => a.FieldName == "TEXTSTRING");
        if (att != null)
        {
            insp["TEXTSTRING"] = "Hello World";
    
            //create and execute the edit operation
            EditOperation op = new EditOperation();
            op.Name = "Update annotation";
            op.Modify(insp);
    
            //OR using a Dictionary - again TEXTSTRING has to exist in the schema
            //Dictionary<string, object> newAtts = new Dictionary<string, object>();
            //newAtts.Add("TEXTSTRING", "hello world");
            //op.Modify(annoLayer, oid, newAtts);
    
            op.Execute();
        }
    });
    Edit the attributes of a FeatureSceneLayer
    //must support editing!
    var featSceneLayer = MapView.Active.Map.GetLayersAsFlattenedList()
                       .OfType<FeatureSceneLayer>().FirstOrDefault();
    if (!featSceneLayer.HasAssociatedFeatureService || 
        !featSceneLayer.IsEditable)
      return;
    
    var ok = await QueuedTask.Run(() =>
    {
      var editOp = new EditOperation()
      {
        Name = "Edit FeatureSceneLayer Attributes",
        SelectModifiedFeatures = true
      };
      //make an inspector
      var inspector = new Inspector();
      //get the attributes for the specified oid
      inspector.Load(featSceneLayer, oid);
      inspector["PermitNotes"] = "test";//modify
      editOp.Modify(inspector);
      return editOp.Execute();//synchronous flavor
    });
    
    Requirements

    Target Platforms: Windows 11, Windows 10

    ArcGIS Pro version: 3 or higher.
    See Also