I know that AndAlso is equivalent to && and OrElse is equivalent to ||. But what is the cleanest way to achieve the equivalent of Visual Basic's And and Or in C#?
For example, consider the following VB.NET code. The ValidateForControl method performs some validation and returns whether the state of the specified control is valid. The entire input form is valid if all controls are valid. However, each control must be individually validated even if one is invalid (which requires the operator not to short-circuit). Visual Basic's And operator is perfect for this situation, but unfortunately there's no equivalent operator in C# as far as I know (&& short-circuits).
Return _
Me.ValidateForControl(Me.firstNameTextBox) And
Me.ValidateForControl(Me.middleNameTextBox) And
Me.ValidateForControl(Me.lastNameTextBox) And
Me.ValidateForControl(Me.streetAddressTextBox) And
Me.ValidateForControl(Me.cityTextBox) And
Me.ValidateForControl(Me.stateComboBox) And
Me.ValidateForControl(Me.zipCodeMaskedTextBox) And
Me.ValidateForControl(Me.phoneMaskedTextBox) And
Me.ValidateForControl(Me.emailAddressTextBox) And
Me.ValidateForControl(Me.checkInDateTimePicker) And
Me.ValidateForControl(Me.checkOutDateTimePicker) And
Me.ValidateForControl(Me.rentalUnitsGroupBox)
Also, for booleans, is ^ in C# equivalent to Xor in Visual Basic?
And --> &
Or --> |
Yes, Xor --> ^
The MSDN documentation for && has a sample which shows both "regular AND" & and "short circuit AND" &&.
Be sure to comment your use of & as most C# programmers will be expecting && with bools.
You could also write an And extension method
static class BooleanExtensions
{
public static bool And(this bool lhs, bool rhs)
{
return lhs & rhs;
}
}
although you're probably better off just sticking with the native & syntax. Note that an AndAlso extension method wouldn't be useful as the rhs argument would get evaluated as part of the method call.
You just use & for And and | for Or. Both ^ and != are equivalent to Xor (and each other), when both operands are booleans.
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