I took the sample code that you provided me in the sample project as a template and came up with the following
Dim bindingSource As New BindingSource()
Dim orderInfo As New LoadComboData
bindingSource.DataSource = orderInfo.SalesTypes
Me.gridPipe.Columns.Add(New GridComboBoxColumn() With {.MappingName = "SalesType", .HeaderText = "Sales Types", .DisplayMember = "SalesType", .ValueMember = "SalesTypes", .DropDownStyle = DropDownStyle.DropDownList, .DataSource = bindingSource.DataSource})
Public Class SalesTypes
Implements INotifyPropertyChanged
Public Event PropertyChanged As PropertyChangedEventHandler Implements INotifyPropertyChanged.PropertyChanged
Private Sub RaisePropertyChanged(ByVal name As String)
RaiseEvent PropertyChanged(Me, New PropertyChangedEventArgs(name))
End Sub
Private SalesLocations As String
Public Property SalesTypes As String
Get
Return SalesLocations
End Get
Set(ByVal value As String)
SalesLocations = value
RaisePropertyChanged("SalesType")
End Set
End Property
End Class
Public Class LoadComboData
Implements IDisposable
Public Sub New()
Dim shipCityDetails As New ObservableCollection(Of SalesTypes)()
shipCityDetails.Add(New SalesTypes() With {.SalesTypes = "UNITED STATES"})
shipCityDetails.Add(New SalesTypes() With {.SalesTypes = "LOCAL"})
shipCityDetails.Add(New SalesTypes() With {.SalesTypes = "SPALDING"})
Me.SalesTypes = shipCityDetails
End Sub
Private privateSalesTypes As ObservableCollection(Of SalesTypes)
Public Property SalesTypes() As ObservableCollection(Of SalesTypes)
Get
Return privateSalesTypes
End Get
Set(ByVal value As ObservableCollection(Of SalesTypes))
privateSalesTypes = value
End Set
End Property
Public Sub Dispose() Implements IDisposable.Dispose
Dispose()
GC.SuppressFinalize(Me)
End Sub
End Class
When I run the program it adds the column and has the correct data showing in the grid. However, when I double click on the cell the combobox does not show but instead shows the same error as before. The only difference that I can see between the sample and my code is that in my grid I connect to a data table for all columns except the combobox and then add it manually. If there is no current solution for this problem will release 3 have this issue fixed so that I can bind a combobox to my original datasource table, just like the checkbox column?
Thanks
