我把添加的控件的控件名称添加到窗口的sys_textbox4多行文本框中

然后当重新选择combobox选项时，删除原来窗口内添加的控件，可是无法删除，报错“Line类型转换为String类型无效”

If e.Form.controls("sys_textbox4").value IsNot Nothing Then

Dim v1() As String
Dim s1 As New List(of String)
Dim s2 As String = e.form.controls("sys_TextBox4").value

Dim ctext As object
Dim ctextv As String
v1 = s2.split(",")
For Index As Integer = 0 To v1.Length - 1

    ctextv = Cstr(v1(index))
    ctext = e.Form.controls(ctextv)
    e.Form.removecontrol(ctext)

Next

End If

请您指导，多谢

    ctextv = Cstr(v1(index))
    

    e.Form.removecontrol(ctextv)

谢谢！谢谢！

狐表真伟大！