How to find the position of the first dash in a string

28 Sep 2006 12:20 PM

Rob

lets' say I have a value ABCD - 123

How can I return the position of the dash ?

28 Sep 2006 12:56 PM

AMercer

> lets' say I have a value ABCD - 123
>
> How can I return the position of the dash ?

Do you mean that you have a string containing "ABCD - 123"? If so, use
Instr().

28 Sep 2006 5:51 PM

zacks

AMercer wrote:

> > lets' say I have a value ABCD - 123
> >
> > How can I return the position of the dash ?
>
> Do you mean that you have a string containing "ABCD - 123"? If so, use
> Instr().

The "proper" .NET way would be to use the IndexOf method.

29 Sep 2006 8:46 AM

Andrew Morton

za***@construction-imaging.com wrote:

> AMercer wrote:
>>> lets' say I have a value ABCD - 123
>>>
>>> How can I return the position of the dash ?
>>
>> Do you mean that you have a string containing "ABCD - 123"? If so,
>> use Instr().
>
> The "proper" .NET way would be to use the IndexOf method.

But surely, then you should check that the string isn't Nothing first or you
could get an ArgumentNullException . Why do you consider the VB.NET method
as not "proper" when programming in VB.NET? Would you exclusively use
"String.Concat" rather than "&" ?.

Andrew

28 Sep 2006 1:27 PM

Nate

x = instr("ABCD - 123", "-")

Show quoteHide quote

"Rob" <rwch***@comcast.net> wrote in message
news:cOCdnXEKArCAIIbYnZ2dnUVZ_rKdnZ2d@comcast.com...
> lets' say I have a value ABCD - 123
>
> How can I return the position of the dash ?
>

28 Sep 2006 1:28 PM

Kevin S Gallagher

Dim s As String = "ABCD - 123"
s.IndexOf("-").ToString()

Show quoteHide quote

"Rob" <rwch***@comcast.net> wrote in message
news:cOCdnXEKArCAIIbYnZ2dnUVZ_rKdnZ2d@comcast.com...
> lets' say I have a value ABCD - 123
>
> How can I return the position of the dash ?
>

28 Sep 2006 1:43 PM

Herfried K. Wagner [MVP]

"Rob" <rwch***@comcast.net> schrieb:
> lets' say I have a value ABCD - 123
>
> How can I return the position of the dash ?

'Strings.InStr', 'String.IndexOf'.

--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://dotnet.mvps.org/dotnet/faqs/>

28 Sep 2006 4:26 PM

Shane

dim i as integer = YourString.IndexOf("-")
if i < 0 the pattern does not exist in the string, otherwise, "i" has
the offset of the start of the string.

Rob wrote:
Show quoteHide quote

> lets' say I have a value ABCD - 123
>
> How can I return the position of the dash ?

28 Sep 2006 4:29 PM

Tom Shelton

Rob wrote:

> lets' say I have a value ABCD - 123
>
> How can I return the position of the dash ?

Dim s As String = "ABCD - 123"
Console.WriteLine (s.IndexOf ("-"))

or

Dim s As String = "ABCD - 123"
Console.WriteLine (InStr (s, "-"))

--
Tom Shelton