上传项目,在窗口控件TextBox1的KeyDown事件中输入下面的代码
Dim zf As String = Val(e.Sender.Text)Dim gt As Double = Val(e.Form.Controls("TextBox2").Text)If zf <> "" Then e.Form.Controls("TextBox3").Text = Format(zf * gt,"n")Else e.Form.Controls("TextBox3").Value = ""End If
e.Form.Controls("TextBox3").Value = ""当TextBox1控件数值都清除点后这行代码的条件一直达不到,请教老师要怎么改代码?