converting a string to it's enum (integer) equivalent

  • Thread starter Thread starter Richy
  • Start date Start date
R

Richy

Hi,

I have a class that exposes the Microsoft.DirectX.Direct3D.Compare
property, which allows a drop-down list of values (such as Never,
Always etc) to be selected via the propertygrid. I write the string
value ("Never", "Always" etc) to an XML file, and when I read back the
XML file and set the property I want to be able to set it via the
string. This is my property:

<TypeConverter(GetType(Microsoft.DirectX.Direct3D.Compare))> _
Public Property AlphaFunction() As
Microsoft.DirectX.Direct3D.Compare
Get
Return _properties(PropertiesList.AlphaFunction)
End Get
Set(ByVal value As Microsoft.DirectX.Direct3D.Compare)
_properties(PropertiesList.AlphaFunction) = value
End Set
End Property

What do I need to do to be able to set this property via it's string
value, but still return a drop-down list within a propertygrid to allow
the value to be selected by its name? e.g.

myclass.AlphaFunction = "Never"

Thanks,

Richy
 
Richy said:
What do I need to do to be able to set this property via it's string
value, but still return a drop-down list within a propertygrid to allow
the value to be selected by its name?
Click to expand...

You don't need to.
Convert the given String value into the Enum value that it represents,
something like:

myclass.AlphaFunction _
= CType("Never", Microsoft.DirectX.Direct3D.Compare)

HTH,
Phill W.
 
Thanks. If I do that, however, I get

Conversion from String "Never" to type Integer is not valid.

But I just found I can do it this way:

[Enum].Parse(GetType(Microsoft.DirectX.Direct3D.Compare), "Never")

Cheers,

Richy
 
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