String Comparision

[forlist2001]

Hello there,

How do i compare string such that A < B<... <Y<Z<BA<BB... <CA... <ZZ

Thanks
KB

 

[Lebesgue]

Use the CompareTo method of the string.

string a = "A";
a.CompareTo("B");

see http://msdn2.microsoft.com/en-us/library/system.string.compareto.aspx
for details.

 

[Kb]

Thanks but when i do

string a = "Z";
a.CompareTo("BA");

system tells me that Z is greater than BA.

 

[Lebesgue]

Oh, sorry, I misread your question. You must implement the comparison by
yourself in this case.

 

[Kb]

Thanks Guys for your help...

I have implemented my own comparer and it works...

Code is in vb in c# forum sorry

Dim comp As New MyStringComparer
myAL.Sort(comp)

and my last value is in myAl.item(myAL.count -1)

Public Class MyStringComparer
Implements IComparer

Function Compare(ByVal x As Object, ByVal y As Object) As Integer
Implements IComparer.Compare
Dim s1 As String = CStr(x)
Dim s2 As String = CStr(y)
If s1.Length < s2.Length Then
Return -1
ElseIf s1.Length = s2.Length Then
Return String.Compare(s1, s2)
Else
Return 1
End If
End Function
End Class

 

[PS]

Thanks Guys for your help...

I have implemented my own comparer and it works...

Code is in vb in c# forum sorry

Dim comp As New MyStringComparer
myAL.Sort(comp)

and my last value is in myAl.item(myAL.count -1)

Public Class MyStringComparer
Implements IComparer

Function Compare(ByVal x As Object, ByVal y As Object) As Integer
Implements IComparer.Compare
Dim s1 As String = CStr(x)
Dim s2 As String = CStr(y)
If s1.Length < s2.Length Then
Return -1
ElseIf s1.Length = s2.Length Then
Return String.Compare(s1, s2)
Else
Return 1
End If
End Function
End Class

Make sure you Trim and UpperCase the strings also.