How to: Convert an Object to Another Type in Visual Basic
You convert an Object
variable to another data type by using a conversion keyword such as CType Function.
Example
The following example converts an Object
variable to an Integer
and a String
.
Public Sub objectConversion(ByVal anObject As Object)
Dim anInteger As Integer
Dim aString As String
anInteger = CType(anObject, Integer)
aString = CType(anObject, String)
End Sub
If you know that the contents of an Object
variable are of a particular data type, it is better to convert the variable to that data type. If you continue to use the Object
variable, you incur either boxing and unboxing (for a value type) or late binding (for a reference type). These operations all take extra execution time and make your performance slower.
Compile the code
This example requires:
- A reference to the System namespace.
See also
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