DotNet Visual Basic: '' Could not be set on property 'Items' - Error

• murray / 204 / Sun, 05 Apr 2009 11:57:00 GMT / Comments (2)
• Sorry if this is not the correct group i could not see one for web controls
  
  Hello
  
  I am trying to write a cutom web control, The control contains a customer
  collection that i want to use the Collection Editor in properties to add
  members to this collection.
  
  In design mode the control works correctly but when i run the application
  the control in the designer swaps to a "Error creating Control" gray box,
  but it seems to display correctly in the web browser
  
  Im fairly new to this so not sure what people would like to see to help me -
  but shout and i send something
  
  Thanks in advance,
  
  
• Keywords:

  set, property, items, error, dotnet, visual basic, vb, .net

• http://dotnet.itags.org/dotnet-visual-basic/182931/«« Last Thread - Next Thread »»

• 1. I have foud the problem it was due to the Items property being read/write
     
     so the property definition should be
     
     <DesignerSerializationVisibility(DesignerSerializa tionVisibility.Content), _
     PersistenceMode(PersistenceMode.InnerProperty), _
     Bindable(True), Category("Appearance")> ReadOnly Property Items() As
     TableDef.ItemsCol
     Get
     Return mobjTable.Items
     End Get
     End Property
     
     "Murray" <murrayjack...yahoo.com> wrote in message
     news:%23MDzgVqOFHA.4052...TK2MSFTNGP12.phx.gbl...
     > Sorry if this is not the correct group i could not see one for web
     > controls
     > Hello
     > I am trying to write a cutom web control, The control contains a customer
     > collection that i want to use the Collection Editor in properties to add
     > members to this collection.
     > In design mode the control works correctly but when i run the application
     > the control in the designer swaps to a "Error creating Control" gray box,
     > but it seems to display correctly in the web browser
     > Im fairly new to this so not sure what people would like to see to help
     > me -
     > but shout and i send something
     > Thanks in advance,
     >
     >
     
     

     murray | Wed, 04 Jun 2008 01:43:00 GMT |

  2. Here is a web control property
     <Bindable(True), Category("PROPERTY CATEGORY"), DefaultValue("")> Property
     [NAME]() As Integer
     Get
     Return NAME
     End Get
     Set(ByVal Value As Integer)
     NAME = Value
     End Set
     End Property
     "Murray" <murrayjack...yahoo.com> wrote in message
     news:%23MDzgVqOFHA.4052...TK2MSFTNGP12.phx.gbl...
     > Sorry if this is not the correct group i could not see one for web
     > controls
     > Hello
     > I am trying to write a cutom web control, The control contains a customer
     > collection that i want to use the Collection Editor in properties to add
     > members to this collection.
     > In design mode the control works correctly but when i run the application
     > the control in the designer swaps to a "Error creating Control" gray box,
     > but it seems to display correctly in the web browser
     > Im fairly new to this so not sure what people would like to see to help
     > me -
     > but shout and i send something
     > Thanks in advance,
     >
     >
     
     

     chris | Wed, 04 Jun 2008 01:45:00 GMT |