vb.net选择集 vba选择集

vb.net中如何实现checkbox的全选?

参考方法如下：

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$("input[type='checkbox']").attr("checked",true);

用js这样就行了，如果用C#，参考如下：

foreach (Control item in this.Controls)

{

if (item is CheckBox)

{

CheckBox box = (CheckBox)item;

box.Checked = true;

}

}

VB.net中CheckListBox如何通过程序做选择。

CheckedListBox1.CheckOnClick = True

指示复选项是否应在首次单击时更改状态

CheckListBox.GetItemChecked

返回复选框是否被选中的真假项

要用代码赋是否勾选某项的值应该用setitemchecked

VB.Net读取AutoCAD图纸

如果可以的话请把分给我

以下是cad2007版的，引用autocad 2007 type library 和autocad/objectdbx common 17如果是04或者版本更低的只要引用autocad 2007 type library，代码的话大同小异，思路是一样的

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

On Error Resume Next

Dim acadapp As Autodesk.AutoCAD.Interop.AcadApplication

acadapp = GetObject(vbNullString, "autoCAD.application")

Dim acaddoc As Autodesk.AutoCAD.Interop.AcadDocument

acaddoc = acadapp.ActiveDocument

Dim Ms As Autodesk.AutoCAD.Interop.Common.AcadModelSpace

Ms = acaddoc.ModelSpace

Dim acadObjectI As Autodesk.AutoCAD.Interop.Common.AcadObject

Dim Linei As Autodesk.AutoCAD.Interop.Common.AcadLine

Dim Circlei As Autodesk.AutoCAD.Interop.Common.AcadCircle

Dim Polylinei As Autodesk.AutoCAD.Interop.Common.AcadPolyline

Dim pt As Autodesk.AutoCAD.Interop.Common.AcadPoint

For Each acadObjectI In Ms

Debug.Print(acadObjectI.ObjectName)

Select Case acadObjectI.ObjectName

Case "AcDbLine"

Linei = acadObjectI

Debug.Print("X =" Linei.StartPoint(0).ToString)

Debug.Print("Y =" Linei.StartPoint(1).ToString)

Case ""

Case ""

End Select

Next

End Sub