ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Desktop.Layouts Namespace / Element Class / SetWidth Method
Double
Example Version

SetWidth Method (Element)
Sets the width of the element. This method must be called on the MCT. Use QueuedTask.Run.
Syntax
public void SetWidth( 
   double width
)

Parameters

width
Double
Exceptions
ExceptionDescription
This method must be called within the lambda passed to QueuedTask.Run.
This element requires its mapview to be active
Remarks
Placement for an element contained in graphics layer requires the mapview be active
Example
Element_GetSetWidth
//Modify an element's width.

//Perform on the worker thread
await QueuedTask.Run(() =>
{
  double elmWidth = element.GetWidth();
  elmWidth = 8.5;

  element.SetWidth(elmWidth); //You don't have to get to set; a shortcut would be: element.SetWidth(8.5);
});
Create_ScaleBar
//Create a scale bar for a specific map frame and assign a scale bar style item.

//Construct on the worker thread
await QueuedTask.Run(() =>
{
  //Reference a North Arrow in a style
  StyleProjectItem stylePrjItm = Project.Current.GetItems<StyleProjectItem>().FirstOrDefault(item => item.Name == "ArcGIS 2D");
  ScaleBarStyleItem sbStyleItm = stylePrjItm.SearchScaleBars("Double Alternating Scale Bar 1")[0];

  //Build geometry
  Coordinate2D center = new Coordinate2D(7, 8);

  //Reference MF, create north arrow and add to layout 
  MapFrame mf = layout.FindElement("New Map Frame") as MapFrame;
  if (mf == null)
  {
    ArcGIS.Desktop.Framework.Dialogs.MessageBox.Show("Map frame not found", "WARNING");
    return;
  }

  //At 2.x -
  //ScaleBar sbElm = LayoutElementFactory.Instance.CreateScaleBar(layout, center, mf, sbStyleItm);
  //sbElm.SetName("New Scale Bar");
  //sbElm.SetWidth(2);
  //sbElm.SetX(6);
  //sbElm.SetY(7.5); 

  var sbInfo = new ScaleBarInfo()
  {
    MapFrameName = mf.Name,
    ScaleBarStyleItem = sbStyleItm
  };
  var sbElm = ElementFactory.Instance.CreateMapSurroundElement(
                                      layout, center.ToMapPoint(), sbInfo, "New Scale Bar") as ScaleBar;
  sbElm.SetWidth(2);
  sbElm.SetX(6);
  sbElm.SetY(7.5);
});
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also