Data type conversion

Created by akaBot Support, Modified on Tue, 6 Aug, 2024 at 2:58 PM by akaBot Support

Data Type Conversion

Here are functions for converting one data type to another. Common conversion patterns are summarized below.

1. Conversion to String

This is the method for converting data types other than String type to String type for handling strings. It is used when you want to set a value of a data type other than String type for a property value that is String type. For example, when you want to display the result of an operation in the "Input > Text property" of a message box activity.

Data Type	Conversion Method	Example and Result
Int32	Int32.ToString	100.ToString
Int32	Int32.ToString	(variable var is of Int32 type and assigned 100)
Double	Double.ToString	(variable var is of Double type and assigned 3.14)
Boolean	Boolean.ToString	True.ToString
		False.ToString
		(variable var is of Boolean type and assigned False)
DateTime	DateTime.ToString	(variable var is of DateTime type and has the initial value)
Object	Object.ToString	(variable var is of Object type and assigned 100)
Object	CType(Object, String)	(variable var is of Object type and assigned 100)

2. Conversion to Numeric Types

This is the method for converting data types other than numeric types to numeric types for handling numbers. It is used when performing calculations. If you convert a variable with a non-numeric value to a numeric type, an error will occur. For example, executing "Int32.Parse("１００")" or "Int32.Parse("a")" will throw a FormatException stating that the input string is not in the correct format.

Conversion Pattern	Conversion Method	Example and Result
String ⇒ Int32	Int32.Parse(String)	Int32.Parse("100")
String ⇒ Double	Double.Parse(String)	Double.Parse("3.14")
Object ⇒ Int32	CType(Object, Int32)	(variable var is of Object type and assigned 100)
Object ⇒ Double	CType(Object, Double)	(variable var is of Object type and assigned 3.14)

3. Conversion to Other Types

This is the method for converting to data types other than String or numeric types.

Conversion Pattern	Conversion Method	Example and Result
String ⇒ Boolean	Boolean.Parse(String)	Boolean.Parse("True")
String ⇒ DateTime	DateTime.Parse(String)	DateTime.Parse("2020/9/1")
Object ⇒ Boolean	CType(Object, Boolean)	(variable var is of Object type and assigned True)
Object ⇒ DateTime	CType(Object, DateTime)	(variable var is of Object type and assigned "2020/9/1 1:1:1")

These methods and functions allow for flexible handling and conversion of various data types in VB.