你可以先给label赋值，然后得到每个label的width属性，取最大那个width的值，然后设置各个textbox的位置，即可。

不可以这样，必须先全部取出，然后再比较的。

或者，你表格那里可以加入辅助列，计算每个控件的标题的字符数，那就可以直接查到字符最大的了。

比如

Dim e = args(0)
Dim pnl = args(1)
Dim code As String = "dim frm = args(0)" & vbcrlf
code &= "dim pnl = args(1)" & vbcrlf
code &= "dim txt " & vbcrlf
Dim drs2 As List (of DataRow)=DataTables("控件类型").Select("c")
If drs2 IsNot Nothing Then
    For Each dr2 As DataRow In drs2
        code &= "txt=frm.CreateControl(" & """lb_" & dr2("pouttabcolcap") &  """, ControlTypeEnum.Label)" & vbcrlf
        code &= "pnl.addControl(txt)" & vbcrlf
        code &= "txt=frm.CreateControl(""kj_" & dr2("pouttabcolcap") & """, ControlTypeEnum." & dr2("bindingtype")  & ")" & vbcrlf
        code &= "pnl.addControl(txt)" & vbcrlf
    Next
End If
code &= "return txt"
MessageBox.Show(code)
Functions.remove("test")
Functions.Add("test",Code)
Functions.Complie()
Functions.Execute("test", e.form, pnl)
Dim h As Integer = (pnl.height-10) / math.Ceiling(drs2.count / 2)
Dim w As Integer = (pnl.width-10) / 2
Dim i As Integer = 0
Dim lablen As Integer=0
Dim len As Integer = 0
For Each dr3 As DataRow In drs2
    Dim lb As WinForm.Label = e.Form.Controls("lb_" & dr3("pouttabcolcap"))
    lb.AutoSize = True
    lb.text = dr3("pouttabcolcap") & ":"
    If lablen<lb.width Then
        lablen=lb.width
        len= Encoding.default.getbytes(dr3("pouttabcolcap")).length
    End If
Next
msgbox(lablen)
For Each dr3 As DataRow In drs2
    Dim lb As WinForm.Label = e.Form.Controls("lb_" & dr3("pouttabcolcap"))
    Dim kj As WinForm.control = e.Form.Controls("kj_" & dr3("pouttabcolcap"))
    kj.BindingField=dr3("pouttabcol")
    lb.top = 3+(i\\2)*h
    lb.left = iif(i Mod 2 = 0, 5, w)
    lb.text = dr3("pouttabcolcap").padright(len-dr3("pouttabcolcap").length) & ":"
    kj.top = 3+(i\\2)*h
    kj.left = iif(i Mod 2 = 0, 5, w) + lablen
    kj.width=180
    i += 1
Next