property selected and load other items in other properties

[VB 8 0]

HI CP , Location : Areas, Countries , Capitals Item List : property selected in Location and load items in Item List I am having 1 property with drop down : Areas, Countries , Capitals suppose if i select the Areas then i have to load dynamically Areas thru the .txt file and if i clicked countries then i have to load dynamically and the same . How can i do this Dynamically ?? while clicking the particular item . Regards,

[Jon_Boy]

If I'm following you correctly, each combo is dependent off another. I'm assuming you have some kind of a settings class (with related classes for the combo(s)?) that the property grid is set to. You could in the settings class, for each property set statement, parse the text files and update the values for the other properties as needed, which would update the values in the combo(s).

"There's no such thing as a stupid question, only stupid people." - Mr. Garrison

[VB 8 0]

Hi CP This is my code i am retrieving a property value which raises the error

Public Class cTxtBoxProperties

    <Category("Misc")> <Description("Displays the type of data associated with the control")> \_
<TypeConverter(GetType(MyDataType))> \_
Public Property DataType()
    Get
        Return \_DataType
    End Get
    Set(ByVal value As Object)          
        \_DataType = value
    End Set
End Property
<Category("Misc")> <TypeConverter(GetType(NumberFormats))> \_
<Description("Displays the format of the control")> \_
Public Property Format() As String
    Get
        Return \_Format
    End Get
    Set(ByVal value As String)
        \_Format = value
    End Set
End Property    

End Class
Dim tPropertyName As String = "DataType"
Dim objTxt As Type = GetType(cTextBoxProperties)
Dim PiInfo As PropertyInfo = objTxt.GetType.GetProperty("DataType")
Dim ObjPropertyValue As Object = PiInfo.GetValue(objTxt, Nothing)

Public Class NumberFormats : Inherits System.ComponentModel.StringConverter

Dim alist As New ArrayList
Dim ControlNames() As String

Public Overloads Overrides Function GetStandardValues(ByVal context As System.ComponentModel.ITypeDescriptorContext) As System.ComponentModel.TypeConverter.StandardValuesCollection
    alist = New ArrayList
    alist = GetNumberFormats()
     ControlNames = CType(alist.ToArray(GetType(System.String)), String())
    Return New StandardValuesCollection(ControlNames)
End Function

Public Overloads Overrides Function GetStandardValuesSupported(ByVal context As System.ComponentModel.ITypeDescriptorContext) As Boolean
    Return True
End Function

Public Overloads Overrides Function GetStandardValuesExclusive(ByVal context As System.ComponentModel.ITypeDescriptorContext) As Boolean
    Return True
End Function

Protected Friend Function GetNumberFormats() As ArrayList
    GetNumberFormats = Nothing
    Dim objFStream As FileStream = Nothing
    Dim objReader As StreamReader = Nothing
    Dim fiInfo As FileInfo = Nothing
    Dim tFontSizeFilePath As String = ""
    Dim tNumberFormats() As String
    Dim alist As New ArrayList
    Dim CTextbox As cTextBoxProperties = Nothing
    Dim tFileName As String = ""

    Try

'' Here Raising the ERROR