Equivalent to var in Visual Basic for use in every loop

I need to run some code in Visual Basic, which is equivalent to this in C #:

for(var item in removeRows) { two.ImportRow(item); } 

I know that closest you can declare "var" in VB basically

 Dim something = 

However, how would you do this in the foreach loop?

+4
source share
8 answers

You just use:

 For Each item In removeRows two.ImportRow(item) Next 

The As datatype specification in VB is optional. For details, see For each documentation.

+5
source

With the Infer On option, you can leave "As ..." and the type will be inferred. With the Infer Off option, if you do not specify a type, the type is assumed to be "Object".

+4
source

As already mentioned, the As Type option is IF if you have the option. I suspect that your project has the output option disabled (which was the default when importing existing projects running in .Net 2.0). Turn the Infer On option at the top of the project file or in the project compilation settings.

 Option Infer On '' This works: For Each item In removeRows two.ImportRow(item) Next Option Infer Off '' Requires: For Each item As DataRow In removeRows '' I'm assuming the strong type here. Object will work with Option Strict Off two.ImportRow(item) Next 
+2
source
  For Each item As Object in removerows two.ImportRow(item) Next 

A type omission in VB.NET (VB9) will implicitly enter a variable.

+1
source

The For Every documentation says that As Type is optional .

So

 For Each row in removeRows ... Next 
0
source

You can try (With Object ), the type is optional

 For Each item As Object In removeRows two.ImportRow(item) Next 
0
source

Something like that:

  Dim siteName As String Dim singleChar As Char siteName = "HTTP://NET-INFORMATIONS.COM" For Each singlechar In siteName two.ImportRow(singleChar); Next 
0
source

You do not need "as" in vb:

 For Each p In Process.GetProcesses() Debug.WriteLine(p.ProcessName) Next 
0
source

Source: https://habr.com/ru/post/1433037/


All Articles