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vb.net control array

Posted on 2006-07-05
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I am new to vb.net.

I had a vb6 app where there was a control array of text boxes and one of buttons.
When I typed something in the text box, and hit it's button something would happen.

For this exapmle we can assume that I am just trying to get a message box to show up with the text in the text box when I click on the button.

So clicking on button1 would have a message box with the text of text1.
This was easy because I could just use the index of the button click to figure out what text box to use.

How can I do this with .net without having a function for each button?

Or failing that, can you please explain what is going on?

Thanks
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Question by:jackjohnson44
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Carl Tawn earned 2000 total points
ID: 17042233
You could use the Tag of the textbox to store either the Name or index of the associated TextBox. You then simply need to assign the same Click even handler to each of your buttons, and use the value from the Tag to find the associated TextBox:

    Private Sub Button_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click, Button5.Click, Button4.Click, Button3.Click, Button2.Click

        Dim b As Button = CType(sender, Button)
        Dim tag As String = b.Tag

        Dim t As TextBox = Me.Controls.Find("TextBox" & tag.ToString(), True)(0)
        MessageBox.Show(t.Text)

    End Sub

Notice that the above method is the handler for Button1 through Button5. Each button has a Tag (i.e. Button1 has a Tag with a value of "1"), which is then used to find the associated TextBox.

You didn't mention which version of VB.Net you are using, so the above sample is in VB 2005.
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