• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 471
  • Last Modified:

VB.NET string function

I need a function that takes in two strings(first string is a sentence and second is a single word) and returns true if the first string contains the second string and false otherwise.
For example MyFunction("This is my test string", "that") should return false and MyFunction("This is my test string", "test") returns true
0
YZlat
Asked:
YZlat
1 Solution
 
deane_barkerCommented:
This is the classis InStr function in VB/ASP, and -- I think -- the .IndexOf property in VB.Net.  Something like this:

Position = Sentence.IndexOf(Word)

Position will be a number represented where Word was found in Sentence.  It will return 0 if Word was not found.
0
 
Joe_GriffithCommented:
Why not just use the .IndexOf function.  It would look like this:

MyString = "This is my test string"
x=MyString.IndexOf("test")

This will return -1 if it isn't there or the actual zero based index if it is.  In this case it would return 11 (I think).

 
0
 
Mike TomlinsonMiddle School Assistant TeacherCommented:
So putting it all together in a function would look something like this:

    Private Function hasWord(ByVal sentence As String, ByVal word As String) As Boolean
        If sentence.IndexOf(word) > -1 Then
            Return False
        Else
            Return True
        End If
    End Function

Idle_Mind
0
Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 
Joe_GriffithCommented:
Logic is backwards

 Private Function hasWord(ByVal sentence As String, ByVal word As String) As Boolean
       If sentence.IndexOf(word) > -1 Then
            Return True
        Else
            Return Flase
        End If
    End Function
0
 
Mike TomlinsonMiddle School Assistant TeacherCommented:
Good Grief!

...Thank You Joe_Griffith!

Perhaps I should have taken a nap with my two year old this afternoon...

=)
Idle_Mind
0
 
Joe_GriffithCommented:
Naps are always good.  Would probably have helped me to spell False correctly.
0
 
prakash_prkCommented:
Private Function Button1_Click(ByVal string1 As String, ByVal string2 As String) As Boolean
        If Microsoft.VisualBasic.InStr(string1, string2) = 0 Then
            Return False
        Else
            Return True
        End If
    End Function

0

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now