Listbox Item Exist validation......ignore case?

[hipopony66]

I have written the code below to check and see if the text the user entered into the txtbox already exists as an item in a listbox before adding the new item. This works well; however, if say "Fish" exists in the listbox but the user entered "fish" in the textbox, the item is added to the listbox. I do not want this because the item already exists. How can I modify my code so that the comparison is not case sensitive? Any tips appreciated.

 'Check to make sure the active medication does not already exists in the list
        If lstActiveMeds.Items.Contains(strActiveMeds) = True Then
            MessageBox.Show("The active medication you entered has already been added to the list.", "Error")
            txtActiveMeds.Text = ""
            txtActiveMeds.Focus()

        Else
            'Add the Active Medication to the list
            lstActiveMeds.Items.Add(strActiveMeds)
            txtActiveMeds.Text = ""
            txtActiveMeds.Focus()

        End If

[sparrow1]

Hi,

That's normal because this part of your code says to do so;

'Add the Active Medication to the list
            lstActiveMeds.Items.Add(strActiveMeds)
            txtActiveMeds.Text = ""
            txtActiveMeds.Focus()

wkr,

sparrow1

[vbasicgirl]

You could use the FindStringExact method as its not case sensitive.

Casey.

[sparrow1]

Hi,

You could change this:

lstActiveMeds.Items.Contains(strActiveMeds) = True

into

lstActiveMeds.Items.Contains(strActiveMeds.ToString().Upper()) = True

Wkr,

sparrow1

[hipopony66]

Thanks Sparrow. I think that will work just fine for my application. I less concerned about the case of the first letter, but more about duplicates. Thanks.

[sparrow1]

Hi,

Your welcom.
If it solves your problem, mark your thread as resolved!

Wkr,

sparrow1

[hipopony66]

That took care of it. Thanks for the assistance.

-Jeremy