[RESOLVED] Combobox contains method question

[Macronaute]

Hi, in my VB.NET app, I'm using a combobox.

I want to check if the item which is taped in the combobox is existing in the items collection of the combobox.

I seen the method contains called like :

Combobox1.items.contains("Name_Of_The_Item_Taped")

But I don't want to check the exact string, just the beginning, someting like that :

Combobox1.items.contains("Name_Of_The_Item_Taped" & "*")

OR

Combobox1.items.contains( Like "Name_Of_The_Item_Taped *")

As you see, I don't know how to write it , if you have any idea, I'm listening !

Thank you by advance !

[jmcilhinney]

I think you mean "typed" rather than "taped". The text entered by the user can be accessed using the Text property.

If ComboBox1.Items.
             Cast(Of String)().
             Any(Function(s) s.StartsWith(ComboBox1.Text)) Then

[si_the_geek]

The Contains method of a Collection (such as Items in this case) can only find whole items, for anything else it is better to loop, eg:

Dim doesContain as Boolean = False
For Each item as Object In Combobox1.items
  If item.ToString().StartsWith("Name_Of_The_Item_Taped") Then
    doesContain = True
    Exit For
  End If
Next
If doesContain Then 
  ...

Edit: beaten to it!
Note that this method and jmcilhinney's do the same thing, just using different techniques.

[jmcilhinney]

That code uses LINQ, which is basically a way to compress loops, and is equivalent to this:

Dim isMatch = False
 
For Each s As String In ComboBox1.Items
    If s.StartsWith(ComboBox1.Text) Then
        isMatch = True
        Exit For
    End If
Next
 
If isMatch Then

[Macronaute]

I think you mean "typed" rather than "taped".[/HIGHLIGHT]

yes you are right, I'm sorry for that mistake !

Sorry for the delay (Weekend time), I tried this morning your code @jmcilhinney and this is great !
You both saved a lot of my time, thank you for your answers ! :