errore: "unknown identifier: ComboBox1 alla linea 31 in Fmain.class"
PUBLIC SUB Button2_Click()
DIM r1 AS Float
DIM r2 AS Float
DIM c AS Float
DIM fre AS Float
DIM a AS Float
IF ComboBox1.Text = "Kohm" THEN
r1 = TextBox1.text * 1000
ELSE IF ComboBox1.Text = "Mohm" THEN
r1 = TextBox1.text * 1000000
ENDIF
IF ComboBox2.Text = "Kohm" THEN
r2 = TextBox2.text * 1000
ELSE IF ComboBox2.text = "Mohm" THEN
r2 = TextBox2.text * 1000000
ENDIF
IF ComboBox3.Text = "mF" THEN
c = TextBox3.text * 0.001
ELSE IF ComboBox3.text = "uF" THEN
c = TextBox3.text * 0.000001
ELSE IF ComboBox3.text = "nF" THEN
c = TextBox3.text * 0.000000001
ELSE IF ComboBox3.text = "pF" THEN
c = TextBox3.text * 0.000000000001
ENDIF