VB.Net string concatenation

Question

Dear All,

I have a following string:
axis_interface(0).Parameter

I need to pass "0" through a property which is:

Public Property Acc(ByVal index As Short) As Double
Get
Return axis_interface.Value("axis_interface() & index & .Par.Acceleration")
End Get
Set(ByVal value As Double)
axis_interface.Value("axis_interface( " & index & ").Par.Acceleration") = value
End Set
End Property

Please suggest how do I join the strings highlighted above so that I can relate to axis_interface(0).Parameter string.

latika singh · Answer

Hi, I just created the following string: axis_interface.Value("axis_interface[" & axis - 1 & "].Par.Acceleration") Pass axis and it represents "axis_interface[axis as integer].Par.Acceleration" Thanks!!

Vulpes · Answer

I imagine that this question is related to your previous thread ( http://www.vbdotnetheaven.com/Forums/Thread/163858/passing-string-to-an-int-property.aspx ) It appears on the face of it that you're trying to pass some script to the axis_interface.Value property and, if you are, then the syntax you have in the Set (but not the Get) accessor is correct. However, if you're just trying to pass the return value of the Axis.Interface(Short).Par.Acceleration property (probably a Double) as a String to the axis_interface.Value property which is of type Double, then the correct syntax will be: Public Property Acc(ByVal index As Short) As Double Get Return axis_interface.Value(axis_interface(index).Par.Acceleration.ToString) End Get Set(ByVal value As Double) axis_interface.Value(axis_interface(index).Par.Acceleration.ToString) = value End Set End Property You'd then pass 0 to this property using the syntax Acc(0).