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Razor VB Logic

Conditional logic in Razor using VB enables you to make decisions and control the flow of your code based on certain conditions. VB supports statements like If, ElseIf, Else, and Select Case, allowing you to implement flexible logic in your applications.

Key Topics

If-Else Statements

Example

@Code
    Dim age As Integer = 20
    If age >= 18 Then
        Response.Write("<p>You are eligible to vote.</p>")
    Else
        Response.Write("<p>You are not eligible to vote.</p>")
    End If
End Code

Explanation: This example uses an If-Else statement to check if a person is eligible to vote based on their age.

Ternary-Like Operator

Example

@Code
    Dim isMember As Boolean = True
    Dim message As String = If(isMember, "Welcome, member!", "Please sign up.")
End Code

<p>@message</p>

Explanation: The If operator in VB acts similarly to the ternary operator in C#, enabling concise conditional logic for assigning values.

Select Case

Example

@Code
    Dim day As String = "Monday"
    Select Case day
        Case "Monday"
            Response.Write("<p>Start of the workweek.</p>")
        Case "Friday"
            Response.Write("<p>End of the workweek.</p>")
        Case Else
            Response.Write("<p>It’s a regular day.</p>")
    End Select
End Code

Explanation: The Select Case statement provides a clear structure for handling multiple predefined cases based on the value of a variable.

Key Takeaways

  • VB logic structures are intuitive and align with standard Visual Basic syntax.
  • Conditional logic with If-Else and Select Case enables dynamic decision-making.
  • The If operator offers a concise way to handle simple conditions.
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