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hush · Aug 26th, 2006, 10:26 AM

The following code works well apart from one slight floor. I can�t seem to figure it out.

The job it is doing it essentially removing a given section of the string by splitting it up and then joining it back together again (I�m sure the process it obvious by the code).

However when it is displayed in a text box on a form it has some wired rectangle character on the last line by itself. At first I though it was the process of splinting it and putting it back together but if I comment out the line that clears the array it seems that the character disappears.

That then made me think it was the fact that an element of an array is cleared out and not removed but in changing the value of the array element to �� it still has that symbol.

What is the symbol called (a little rectangle that is tall and thin)?

Any I ideas on what�s causing it?

(Toggle Plain Text)

     'declares an array
        Dim ping_stdout_array() As String
        'splits the string 's' into lines and then passes each string into array ping_stdout_array
        ping_stdout_array = s.Split(vbLf)

        'iterates 0 - the size of the array
        For i As Integer = 0 To UBound(ping_stdout_array)
            'declares a variable type boolean
            Dim t_or_f As Boolean
            'searches each line of the array for the word "exit" and returns - true or false into 
            'the 'boolean' variable
            t_or_f = InStr(ping_stdout_array(i), "exit")
            'conditional - if true then clear array element 'i'. 1 is the number of elements to clear
            If t_or_f = "True" Then
                'Array.Clear(ping_stdout_array, i, 1)

            End If
           
        Next

        'joins the array back together and passes it back into the s variable
        s = String.Join(vbLf, ping_stdout_array)
        

        'displays stdout of ping to "textbox" on form1
        TextBox.Text = s

The Dark · Aug 26th, 2006, 10:37 AM

I think the multiline edit control needs a CR-LF sequence for the end of lines.
Try using vbCrLf in your join statement.

hush · Aug 26th, 2006, 10:44 AM

It got rid of the symbol at the end of the string. But put one at the end of each line.

I guess that’s the sysmbol for Cr (carriage return) then.

Thanks for the swift reply

The Dark · Aug 26th, 2006, 10:47 AM

Quote:

Originally Posted by hush

It got rid of the symbol at the end of the string. But put one at the end of each line.

I guess that’s the sysmbol for Cr (carriage return) then.

Thanks for the swift reply

You should change the vbLf in the split line too.
Otherwise you would be leaving the original CRs in the strings after splitting, which would give your two CRs and one LF when you joined them back again.

hush · Aug 26th, 2006, 12:35 PM

That puts three of them next to each other on a new line.

But I then tried every combination as I see what you are getting at and I found one that works properly:

(Toggle Plain Text)

ping_stdout_array = s.Split(vbCrLf)

�

(Toggle Plain Text)

s = String.Join(vbCr, ping_stdout_array)

thanks for the help The Dark

Aug 26th, 2006, 10:26 AM	#1
hush Programmer Join Date: Feb 2006 Location: 127.0.0.1 Posts: 35 Rep Power: 0	strange symbol The following code works well apart from one slight floor. I can�t seem to figure it out. The job it is doing it essentially removing a given section of the string by splitting it up and then joining it back together again (I�m sure the process it obvious by the code). However when it is displayed in a text box on a form it has some wired rectangle character on the last line by itself. At first I though it was the process of splinting it and putting it back together but if I comment out the line that clears the array it seems that the character disappears. That then made me think it was the fact that an element of an array is cleared out and not removed but in changing the value of the array element to �� it still has that symbol. What is the symbol called (a little rectangle that is tall and thin)? Any I ideas on what�s causing it? (Toggle Plain Text) 'declares an array Dim ping_stdout_array() As String 'splits the string 's' into lines and then passes each string into array ping_stdout_array ping_stdout_array = s.Split(vbLf) 'iterates 0 - the size of the array For i As Integer = 0 To UBound(ping_stdout_array) 'declares a variable type boolean Dim t_or_f As Boolean 'searches each line of the array for the word "exit" and returns - true or false into 'the 'boolean' variable t_or_f = InStr(ping_stdout_array(i), "exit") 'conditional - if true then clear array element 'i'. 1 is the number of elements to clear If t_or_f = "True" Then 'Array.Clear(ping_stdout_array, i, 1) End If Next 'joins the array back together and passes it back into the s variable s = String.Join(vbLf, ping_stdout_array) 'displays stdout of ping to "textbox" on form1 TextBox.Text = s 'declares an array Dim ping_stdout_array() As String 'splits the string 's' into lines and then passes each string into array ping_stdout_array ping_stdout_array = s.Split(vbLf) 'iterates 0 - the size of the array For i As Integer = 0 To UBound(ping_stdout_array) 'declares a variable type boolean Dim t_or_f As Boolean 'searches each line of the array for the word "exit" and returns - true or false into 'the 'boolean' variable t_or_f = InStr(ping_stdout_array(i), "exit") 'conditional - if true then clear array element 'i'. 1 is the number of elements to clear If t_or_f = "True" Then 'Array.Clear(ping_stdout_array, i, 1) End If Next 'joins the array back together and passes it back into the s variable s = String.Join(vbLf, ping_stdout_array) 'displays stdout of ping to "textbox" on form1 TextBox.Text = s

Aug 26th, 2006, 12:35 PM	#5
hush Programmer Join Date: Feb 2006 Location: 127.0.0.1 Posts: 35 Rep Power: 0	That puts three of them next to each other on a new line. But I then tried every combination as I see what you are getting at and I found one that works properly: (Toggle Plain Text) ping_stdout_array = s.Split(vbCrLf) ping_stdout_array = s.Split(vbCrLf) � (Toggle Plain Text) s = String.Join(vbCr, ping_stdout_array) s = String.Join(vbCr, ping_stdout_array) thanks for the help The Dark

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Aug 26th, 2006, 10:37 AM	#2
The Dark Expert Programmer Join Date: Jun 2005 Posts: 850 Rep Power: 4	I think the multiline edit control needs a CR-LF sequence for the end of lines. Try using vbCrLf in your join statement.

Aug 26th, 2006, 10:44 AM	#3
hush Programmer Join Date: Feb 2006 Location: 127.0.0.1 Posts: 35 Rep Power: 0	It got rid of the symbol at the end of the string. But put one at the end of each line. I guess that’s the sysmbol for Cr (carriage return) then. Thanks for the swift reply

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Programming Forums > Application Development > Visual Basic .NET

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