How to implement ComboBox.FindValue

[Guest]

How do I implement the value equivalent of the ComboBox.FindStringExact
method?

I.e. How do I set the ComboBox.SelectedIndex so that the
ComboBox.SelectedValue object matches one that I specify.

Thanks in advance for any help,
Hal Heinrich
VP Technology
Aralan Solutions Inc.

 

[Guest]

combobox.SelectedIndex = combobox.FindStringExact(mystring)

 

[Guest]

Dennis,

You do not understand the question! It is not how use FindStringExact, which
works with the ComboBox.DisplayMember.

The question is how to find the index corresponding to a specific
ComboBox.ValueMember.

Hal

 

[Cor Ligthert]

Hal,

When I had not read your answer to Dennis I would have given the same answer
as he.

Therefore it is true that probably Dennis did not understand your question,
probably because of the way the question was asked.

The answer is simple, use a dataview (or defaultview) as datasource and use
a dataview.find to find the rowindex. That you can set to your
selectedindex.

http://msdn.microsoft.com/library/d...ml/frlrfsystemdatadataviewclassfindtopic1.asp

I hope this helps?

Cor

 

[Guest]

Cor,

Thanks for your reply. I'd like to rephrase the question as follows:

Can you provide an implementation for the following function definition?

Public Function FindValue(ByVal cb As System.Windows.Forms.ComboBox,
ByVal obj As Object) As Integer
'Parameters
' cb
' the ComboBox to be searched
' obj
' the Object to search for
'
'Return Value
' The zero-based index of the first item found; returns -1 if no
match is found.
'
'Remarks
' Uses the Equals method of the Object class to determine a match
' returns the index for which the following is true:
' obj.Equals(cb.SelectedItem)
'
End Function

Thanks,
Hal

 

[rawCoder]

if cb.items.contains(obj) then
return cb.items.indexOf( obj)
else
return -1
end if

Does this work for you ?
http://msdn.microsoft.com/library/d...comboboxobjectcollectionclassindexoftopic.asp

HTH
rawCoder

 

[Guest]

Thank you!

That is exactly what I was after.

Hal