Rubber Banding

Rubber Banding

• dmk70

  dave45 wrote:

  This url gives VB code for a SimpleCircleAdorner class and: myAdornerLayer = AdornerLayer.GetAdornerLayer(myTextBox) myAdornerLayer.Add(New SimpleCircleAdorner(myTextBox)) but doesn't explain how to create an AdornerLayer, (Dim myAdornerLayer as AdornerLayer returns Nothing, how do I

  GetAdornerLayer is a static method on the AdornerLayer class. So you declare myAdornerLayer to be of type AdornerLayer and then assign directly as shown.

  dave45 wrote:

  Finally, where does WPF fit into the grand scheme of things Its in .NET 3.0 but it doesn't seem to be intended for VS2005(VB) Windows.Forms developers, is that right

  Windows Forms development is completely separate from WPF development. If you install .NET 3.0 or 3.5 you should be able to create WPF projects within VS2005.

  
  

• fhunter

  After months of searching I've concluded that for Windows.Forms (VS2005 [VB]):

  1. MSFT "Adorners" provide Control grips in the VS2005 UI for design-time use, not for user interface at run-time.

  2. With some difficulty I've written my own VB code to provide re-sizing grips on my controls for run-time use (re-inventing the wheel).

  3. For VB rubber-banding lines and rectangles at run-time, try ControlPaint.DrawReversible .........

  ms-help://MS.VSCC.v80/MS.MSDN.v80/MS.NETDEVFX.v20.en/CPref17/html/M_System

  _Windows_Forms_ControlPaint_DrawReversibleLine_1_08a5d49c.htm

  ms-help://MS.VSCC.v80/MS.MSDN.v80/MS.NETDEVFX.v20.en/CPref17/html/M_System _Windows_Forms_ControlPaint_DrawReversibleFrame_1_6b76f023.htm

  Why is it so difficult to find out these things

  PS

  VB PowerPacks v2.0 line, oval and rectangle "shapes" don't seem to have a delete option when added to a form in the VS2005 UI design-time.

  Dave

  
  

• stswordman

  The basic technique of using a rectangle to show selection and managing it using mouse down and up is clearly still applicable. If you want to do selection of all shapes in an area you are going to need to overlay the entire area wth a canvas so you can position teh rectangle appropriately.
  
  
  

• SimonS_

  Thanks to both of you for answering the question.

  I will take a look at the Adorners and the overlay canvas.

  Paul

  
  

• Majid.vagheeian

  Context: VS2005(VB) Windows.Forms project.

  I'm confused about how to provide run-time manipulation of userControls ie shapes (line, polygon, elipse; re-size, rubber-banding, etc).

  http://msdn2.microsoft.com/en-us/library/ms743737.aspx says an Adorner is bound to a UIElement and is rendered on an AdornerLayer. Could MS please explain how to create on a Form using VB, an AdornerLayer and UIElements. This url gives VB code for a SimpleCircleAdorner class and:

  myAdornerLayer = AdornerLayer.GetAdornerLayer(myTextBox)
  myAdornerLayer.Add(New SimpleCircleAdorner(myTextBox))
   
  but doesn't explain how to create an AdornerLayer, (Dim myAdornerLayer as AdornerLayer returns Nothing, how do I 
  create a visual tree ) and a VB TextBox dragged from the Toolbox onto my form at design time is not a UIElement.

  VB PowerPacks v2.0 provides line, oval and rectangle "shapes", but these are are not UIElements and are a bit limited.

  http://msdn2.microsoft.com/en-us/library/ms747393.aspx "Shapes and Basic Drawing in WPF Overview" says a Shape object is a type of UIElement, so I suppose it would do the job but the samples are in XMAL and C#.

  Can WPF be coded in VB on a Form or do I have to get my head round XMAL and C# to use WPF

  Finally, where does WPF fit into the grand scheme of things Its in .NET 3.0 but it doesn't seem to be intended for VS2005(VB) Windows.Forms developers, is that right

  dave45, disconbobulated.

  
  

• Dhondtie

  I would recommend using Adorners for this kind of stuff. A google search on Adorners should get you the required information. HTH.
  
  Pavan
  
  
  
• Rubber Banding