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Automatically Trim Spaces for DataBound TextBoxes

mitchvincent asked
Medium Priority
Last Modified: 2012-05-05
What I'd like to do is automatically trim spaces (or "space characters") from all text boxes just before the data is sent to the database.

I can do that with a global TextChanged even handler, but I'd rather do it just once instead of every time the "text changes".

Is there any event I can catch that might give me an opprotunity to trim() all the strings before they go into the DB/DataSet?

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Distinguished Expert 2017
Hi mitchvincent;

You can use the Validating event handler to make the change once. It fires just before losing focus.

    Private Sub TextBox_Validating(ByVal sender As Object, _
        ByVal e As System.ComponentModel.CancelEventArgs) Handles _
        TextBox1.Validating, TextBox2.Validating

        Dim tb As TextBox = CType(sender, TextBox)
        tb.Text = tb.Text.Trim()

    End Sub


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