[RESOLVED] Keep a user from switching tabs before they click the datagridview

[teamster]

I have a form with tab controls (TabControl1). There is a datagridview1 above it and when a row is clicked, it populates textboxes in the TabPage1 child. I have a TextBoxID that contains the Primary Key. I would like to validate against that using the validating class to prevent a user from clicking or changing the focus of TabPage1 if TextBoxID.Text=""

I tried several renditions of something like this...

    Private Sub TabControl1_Validating(ByVal sender As System.Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles TabControl1.Validating
        If TextBoxID.Text = "" Then
            MsgBox("Field Data Needed For Other Tabs!")
            e.Cancel = True
        End If
    End Sub

How can I achieve this without having to continue checking other tab enter events for this field being empty?

[kebo]

Maybe look at from the opposite angle. Rather than prevent something if a condition is not true, allow it when a condition is true. The latter may be able to be done by setting the enable bit of the tab control... disable the tab control until the validation succeeds.
kevin

[SwordEdge]

Change the Handle u have there to .click or keep it what works best

and write a

If PerFormedDataEncode = false Then
e.cancel
End If

Make a new boolean in ur class
Public PerformedDataEncode As boolean = false

After ur code that populates the fields
PerformedDataEncode = true

Or hide the tabcontrol and show it when the fields are filled

[teamster]

Way to think outside the box. That was perfect and looks better too. I set TabControl1.Enabled = False by default load, then on the DataGridView1_CellContentClick I enabled it to True. Just what I needed.