Question Prevent empty textbox

[Iswan]

what is code i should use if i want to prevent user not to leave empty word in text box after user click save button.Oh ya, i am using visual studio 2005, databse sql 2005 .Here is my code


Private Sub btnregister_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnregister.Click

If MsgBox(" Are You Confirm", MsgBoxStyle.YesNo) = vbYes Then
Me.StaffTableAdapter.Insert(Me.NAMETextBox.Text, Me.TELEPHONEMaskedTextBox.Text, Me.DEPARTMENTComboBox1.Text, Me.I_CTextBox.Text, Me.USERNAMETextBox1.Text, Me.PASSWORDTextBox.Text, Me.ADDRESSTextBox1.Text, Today.Date.ToShortDateString, Today.Date.ToShortDateString)
Me.StaffTableAdapter.Fill(Me.LoginDataSet.staff)
End If
end sub

 

[s1ckOh]

If TextBox1.Text = "" Then 
     TextBox1.Focus
     Exit Sub
End If