I mean, how to write formula like this:
Dec2013-Feb2014, the result = 3 (from december to february, jump 3 time)
Jan2014-Feb2014, the result = 2 (from january to february, jump 2 time)
Feb2014-Feb2014, the result = 1 (in same month is 1 time)
then i have
TextBox1.text -> as month before
TextBox2.text -> as month after
TextBox3.text -> as the result
Button1.text, button to get the result in the Textbox3.Text
If I write TextBox1.text = "20-May-2012", TextBox2.text = "20-Feb-2014", I wanna TextBox3.Text = 22.
If I write TextBox1.text = "20-May-2013", TextBox2.text = "20-Feb-2014", I wanna TextBox3.Text = 10.
If I write TextBox1.text = "20-Dec-2013", TextBox2.text = "20-Feb-2014", I wanna TextBox3.Text = 3
If I write TextBox1.text = "20-Jan-2013", TextBox2.text = "20-Feb-2014", I wanna TextBox3.Text = 2
If I write TextBox1.text = "10-Feb-2013", TextBox2.text = "20-Feb-2014", I wanna TextBox3.Text = 1
and so on.
how could i write the month jumping formula?