combo box question - Xtreme Visual Basic Talk

11-10-2006, 11:48 AM

ADO DOT NET ADO DOT NET is offline

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Join Date: May 2006

Posts: 209

combo box question

I use this code to get a file name from user and add it to a combo box"

Code:

If OpenFileDialog.ShowDialog = Windows.Forms.DialogResult.OK Then
            Dim Counter As Integer
            For Counter = 1 To OpenFileDialog.FileNames.Length
                FileComboBox.Items.Add(OpenFileDialog.FileNames(Counter - 1).ToString)
            Next
        End If

My problem is that if user select a file twice it will be added, since it shouldn't be added! How to prevent the combo box from getting duplicated file names?

11-10-2006, 12:28 PM

wayneph

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Posts: 8,393

You add code to check your ComboBox Items.

How much programming have you done? This is a simple Loop with an If statement. If you don't get this part, you're going to have a miserable career.

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11-10-2006, 01:21 PM

stevo

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Join Date: May 2004

Location: Manchester, England.

Posts: 1,254

Before adding to the combobox use the FindStringExact property of the combobox and if it returns -1 then you can add to it

Code:

If FileComboBox.FindStringExact(OpenFileDialog.FileNames(Counter - 1).ToString) = -1 Then
                    FileComboBox.Items.Add(OpenFileDialog.FileNames(Counter - 1).ToString)
                End If

11-12-2006, 05:26 AM

ADO DOT NET ADO DOT NET is offline

Junior Contributor

Join Date: May 2006

Posts: 209

Quote:

Originally Posted by wayneph

You add code to check your ComboBox Items.

How much programming have you done? This is a simple Loop with an If statement. If you don't get this part, you're going to have a miserable career.

dear sir
i am sorry for posting such question. in the future i think more about my posts! for now it seems that you are having a great career in programming. so could you be so kind and help me with this:
http://www.xtremevbtalk.com/showthread.php?t=274316
???
thanks