i have decleared all variables as double.
Sub kaat()
goldkaatinratti = (Val(txtbox_tolagoldweight.Text * 96) + Val(txtbox_mashagoldweight.Text * 8) + Val(txtbox_rattigoldweight.Text)) * 8 / 96
End Sub
but when i leave the textboxes empty it gives ma the error (Conversion from string "" to type 'Double' is not valid.)
i CANNOT give this statement as this all ruins my future calculation.
'If txtbox_tolagoldweight.Text = "" Then
' txtbox_tolagoldweight.Text = 0
'End If
'If txtbox_mashagoldweight.Text = "" Then
' txtbox_mashagoldweight.Text = 0
'End If
'If txtbox_rattigoldweight.Text = "" Then
' txtbox_rattigoldweight.Text = 0
'End If