#### Convert a String to a Number

```How can i convert a character to a number, so that the result is only numerical digits, and would always be the same, besides 26 (plus non-alpha characters) if-then statements.
like, A = 1 and A always equals 1
so if I had the string:  1234A
after converting, I would get the result:  12341
A doesn't necessarily have to = 1, or even a single digit.  It just has to equal a numerical... number.```
 0
bortiquai
12/29/2007 12:26:03 AM
asp.net.web-forms 93655 articles. 1 followers.

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```perhaps you can do something like this.
Store your letters in an array A and maintain a cooresponding array B that has the numeric equivalent you would want to replace the letter with.
When an alpha character is found in array A, you simply substitute the value from array B at the same index position giving you repeatable replacements.        Dim arA As Char() = {"A", "B", "C", "D", "E"}
Dim arB As Char() = {"1", "2", "3", "4", "5"}

Dim test As String = "1234A"

'convert test string into a char array
Dim chars As Char() = test.ToCharArray

'for each char in our input string
For index As Integer = 0 To chars.Length - 1
'find each char in the first array
'converting to uppercase as we go
'to match how we entered them in our 1st array
Dim i As Integer = Array.IndexOf(arA, Char.ToUpperInvariant(chars(index)))

'if found, use the char in the same index position from the 2nd array
'and replace the character
If i >= 0 Then chars(index) = arB(i)

Next

'now convert the char array back into a string
test = New String(chars)

'test will now equal "12341"      Mike Banavige~~~~~~~~~~~~Need a site code sample in a different language?  Try converting it with: http://converter.telerik.com/```
 0
mbanavige
12/29/2007 1:00:04 AM
```Yeah, that would work.  But i was looking for something even simpler, like using an ASCII code, or converting the string as a whole to hex.
Like ConvertToSomething(125t-12A) = 23098432 or whatever.
Maybe i could combine that with your idea, but instead of using arrays, just iterate each character and if it is non-numeric, convert it to something that is numeric.
Thanks for your suggestions.```
 0
bortiquai
12/29/2007 1:15:41 AM
```Try something like this:
string x = "50";
Int32 i = Int32.Parse(x); Please remember to Mark this post as Answered if it serves your purpose so that issue can be closed and others can refer.```
 0
SKVSKV
12/29/2007 1:19:24 AM
``` bortiquai:
... just iterate each character and if it is non-numeric, convert it to something that is numeric.

In order to distinguish between the characters that are numeric digits and those that are not, i think you will need to iterate.  Here's a simpler iteration.        Dim sb As New StringBuilder
Dim test As String = "1234A"
For Each c As Char In test.ToCharArray
If Char.IsDigit(c) Then
sb.Append(c)
Else
sb.Append(Asc(c))
End If
Next
test = sb.ToString Mike Banavige~~~~~~~~~~~~Need a site code sample in a different language?  Try converting it with: http://converter.telerik.com/```
 0
mbanavige
12/29/2007 1:25:21 AM
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