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How to delete a IDisplayDimension

Question asked by Nikola Malesevic on May 11, 2017
Latest reply on May 12, 2017 by Amen Allah Jlili

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While editing the sketch, I create a new dimension, and later I want to delete it. However, the dimension is never selected and thus never deleted.

private readonly IModelDoc2 _document;
private readonly IModelDocExtension _extension;
private SketchSegment _lineSplineTangent;
private ISketchPoint _pointRight;
private IDisplayDimension _dimensionHeight;

private void CreateDimension()
{
  _lineSplineTangent.Select(false);
  _pointRight.Select(true);
  _dimensionHeight = (IDisplayDimension)_document.AddVerticalDimension2(0, 0, 0);
}

private void DeleteDimension()
{
  _document.ClearSelection2(true);
  _document.Extension.SelectByID2(_dimensionHeight.GetNameForSelection(), "DIMENSION", 0, 0, 0, false, 1, null, 0);
  _extension.DeleteSelection2();
}

How to select a dimension stored in IDisplayDimension object to be able to delete it?

Nikola Malesevic May 12, 2017 8:16 AM

Correct Answer

Solved it by using dimension's annotation object to select the dimension itself. IAnnotation is a parent class of many, if not all, types of objects that are used for annotation, including IDisplayDimension.

IAnnotation annotation = _dimensionHeight.GetAnnotation();
annotation.Select(false);
_extension.DeleteSelection2(0);

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Amen Allah Jlili May 11, 2017 11:01 AM

Hi Nick!

GetNameForSelection() returns the selection string for the selected dimension. It appears that you are clearing the selection list before invoking GetNameForSelection(). For that matter, I think it's not returning the proper selection string. Can you debug print the selection string to double check this?

Thanks,
Amen

CADHero.com

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Nikola Malesevic @ Amen Allah Jlili on May 11, 2017 11:57 AM

Hi Amen.

The string retrieved by GetNameForSelection() is "D4@Sketch1".

GetNameForSelection() returns the selection string for the selected dimension.

I am not sure that this is correct. We should retrieve the selection string with GetNameForSelection() in order to pass it to SelectByID2() and select the object. If the object is already selected, why bother calling these two functions? Am I right?

I have also found the following in the documentation for SelectByID2():

Specify "D1@Sketch2@Part1.SLDPRT" rather than simply "D1@Sketch2"; otherwise, this method could return false. If you do not know the object name, or if it is an item that is not automatically named by SOLIDWORKS, you can pass an empty string.

When I hover over the dimension in SW, it says D4@Sketch1 of Part2^WorkpieceDevel2<2>

What is the fully qualified name in this case that I should use and pass to SelectByID2() method?

Thanks for help.

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Amen Allah Jlili @ Nikola Malesevic on May 11, 2017 12:37 PM

I am not sure that this is correct. We should retrieve the selection string with GetNameForSelection() in order to pass it to SelectByID2() and select the object. If the object is already selected, why bother calling these two functions? Am I right?

This is not me, it's what the SOLIDWORKS says. Look at this documentation. 2012 SOLIDWORKS API Help - GetNameForSelection Method (IDisplayDimension) . The API can make no sense sometimes, I understand what you are saying.

Are you working inside an assembly?

One last attempt. Can you try select the dimension using the location and not the name. Pass an empty string for the name and pass the x, y and z coordinates. See if that helps?

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Nikola Malesevic @ Amen Allah Jlili on May 12, 2017 8:19 AM

This is not me, it's what the SOLIDWORKS says.

I see it now, my bad.

Yes, I am working in an assembly, and selection by location is not a possibility because the dimension can be moved around between creation and deletion.

I was able to solve the issue with a simple solution, described in a separate answer for anybody else who encounters the same problem.

As always, thanks for your input, Amen!

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Amen Allah Jlili @ Nikola Malesevic on May 12, 2017 6:31 PM

I swear I had a hunch for that answer!

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Nikola Malesevic May 12, 2017 8:16 AM

IAnnotation annotation = _dimensionHeight.GetAnnotation();
annotation.Select(false);
_extension.DeleteSelection2(0);

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6 Replies

Amen Allah Jlili May 11, 2017 11:01 AM
Mark Correct
Correct Answer
Hi Nick!

GetNameForSelection() returns the selection string for the selected dimension. It appears that you are clearing the selection list before invoking GetNameForSelection(). For that matter, I think it's not returning the proper selection string. Can you debug print the selection string to double check this?

Thanks,
Amen
CADHero.com
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- Nikola Malesevic @ Amen Allah Jlili on May 11, 2017 11:57 AM
  Mark Correct
  Correct Answer
  Hi Amen.
  
  The string retrieved by GetNameForSelection() is "D4@Sketch1".
  GetNameForSelection() returns the selection string for the selected dimension.
  I am not sure that this is correct. We should retrieve the selection string with GetNameForSelection() in order to pass it to SelectByID2() and select the object. If the object is already selected, why bother calling these two functions? Am I right?
  
  I have also found the following in the documentation for SelectByID2():
  Specify "D1@Sketch2@Part1.SLDPRT" rather than simply "D1@Sketch2"; otherwise, this method could return false. If you do not know the object name, or if it is an item that is not automatically named by SOLIDWORKS, you can pass an empty string.
  When I hover over the dimension in SW, it says D4@Sketch1 of Part2^WorkpieceDevel2<2>
  
  What is the fully qualified name in this case that I should use and pass to SelectByID2() method?
  
  Thanks for help.
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  - Amen Allah Jlili @ Nikola Malesevic on May 11, 2017 12:37 PM
    Mark Correct
    Correct Answer
    I am not sure that this is correct. We should retrieve the selection string with GetNameForSelection() in order to pass it to SelectByID2() and select the object. If the object is already selected, why bother calling these two functions? Am I right?
    This is not me, it's what the SOLIDWORKS says. Look at this documentation. 2012 SOLIDWORKS API Help - GetNameForSelection Method (IDisplayDimension) . The API can make no sense sometimes, I understand what you are saying.
    
    Are you working inside an assembly?
    
    One last attempt. Can you try select the dimension using the location and not the name. Pass an empty string for the name and pass the x, y and z coordinates. See if that helps?
    Like • Show 1 Like1
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    - Nikola Malesevic @ Amen Allah Jlili on May 12, 2017 8:19 AM
      Mark Correct
      Correct Answer
      This is not me, it's what the SOLIDWORKS says.
      I see it now, my bad.
      
      Yes, I am working in an assembly, and selection by location is not a possibility because the dimension can be moved around between creation and deletion.
      
      I was able to solve the issue with a simple solution, described in a separate answer for anybody else who encounters the same problem.
      
      As always, thanks for your input, Amen!
      Like • Show 1 Like1
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      - Amen Allah Jlili @ Nikola Malesevic on May 12, 2017 6:31 PM
        Mark Correct
        Correct Answer
        I swear I had a hunch for that answer!
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Nikola Malesevic May 12, 2017 8:16 AM
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Correct Answer
Solved it by using dimension's annotation object to select the dimension itself. IAnnotation is a parent class of many, if not all, types of objects that are used for annotation, including IDisplayDimension.
```
IAnnotation annotation = _dimensionHeight.GetAnnotation();
annotation.Select(false);
_extension.DeleteSelection2(0);
```
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How to delete a IDisplayDimension

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