VB Net - String Format not correctly working on escaping double quotes

Question

I've been looking at a few of these questions on StackOverflow but can't seem to work out why I can't get any of the resolutions working.

I have the following code:

Imports System
                
Public Module Module1
    Public Sub Main()
        dim myFirstName as string = "John"
        dim myLastName as string = "Smith"
        
        dim name as string = String.Format("<Person FirstName=\"{0}\" LastName=\"{1}\">", myFirstName, myLastName)
    End Sub
End Module

and I'm passing in two variables that need to be enclosed in double quotes.

I keep getting an error for comma ) or another expression continuation continued.

I've got this on .Net Fiddle to try and replicate this.

https://dotnetfiddle.net/jpDL04

If you are using VS2015 or later, you could use `Dim name = $""`. More info: [Interpolated Strings](https://learn.microsoft.com/en-us/dotnet/visual-basic/programming-guide/language-features/strings/interpolated-strings). — Andrew Morton, Dec 22 '21 at 18:11

score 2 · Accepted Answer · answered Dec 22 '21 at 17:23

2

Try this:

dim name as string = String.Format("<Person FirstName=""{0}"" LastName=""{1}"">", myFirstName, myLastName)

Using 2 double-quotes instead. The backslash is a C# escape.

answered Dec 22 '21 at 17:23

Justin Tolchin

423
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16

Karen Payne · Answer 2 · 2021-12-22T19:59:58.880

Use Embedded Expressions is an option

Module Program
    Sub Main(args As String())
        Console.Title = "Code sample"
        Dim myFirstName As String = "John"
        Dim myLastName As String = "Smith"
        Dim name = (<T><%= Chr(60) %>Person FirstName="<%= myFirstName %>" LastName="<%= myLastName %>"<%= Chr(62) %></T>).Value
        Console.WriteLine(name)
        Console.ReadLine()
    End Sub
End Module

VB Net - String Format not correctly working on escaping double quotes

2 Answers2