VBNET开发AUTOCAD常遇到的错误

VB.NET开发AUTOCAD时常遇到的错误

1.在带有窗体的DLL中出现下面的错误:eLockViolation.

解决方法:

Private sub Test()

'在Sub里添加下面的定义语句

Dim documentLock As DocumentLock = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.LockDocument()

'......Sub的内容

documentLock.Dispose()

End Sub

2. 组件\"Autodesk.AutoCAD.AcInfoCenterConn.MyAutoCADBalloon\"不具有由 URI \"/AcWindows:component/infocenteracconn/myautocadballoon.xaml\"识别的资源..

在vbnet类库的调试对话框中选择了启动外部程序(CAD)启动后出错:

解决方法:

在vbnet解决方案的属性里选择\"引用\"标签,把里面的acdbmgd和acmgd的复制本地属性改为false

3.创建带窗体的类库文件时,会在即时窗口中出现n多警告,用下面方法去掉它们:

转自:http://blog.sina.com.cn/s/blog_49a9ee14010195ih.html

Suppressing DataBinding ‘error’ messages in the Visual Studio output window

There’s a thread on the Autodesk discussion forums about the ‘error’ messages displayed in the Visual Studio output window when you launch AutoCAD from the debugger. These messages look like this:

System.Windows.Data Error: 5 : Value produced by BindingExpression is not valid for target property.; Value=''

BindingExpression:Path=AutomationName; DataItem='ToolBarCustomizeButton' (HashCode=441234); target element is 'ToolBarToggleButton' (Name='mCustomizeButton'); target property is 'Name' (type 'String')

The messages are disconcerting because they makesit look like there’s something horribly wrong with your project. Don’t panic – these messages

don’t mean you’ve got a problem. They’re just a result of how Microsoft handles WPF behind the scenes, and have been appearing in the output windows of AutoCAD plug-in developers around the world since the AutoCAD 2009 release was launched with a WPF ribbonbar. You can safely ignore them.

If you want to go one step further and remove them, you can edit your acad.exe.config file (located in your AutoCAD installation folder) to add the lines highlighted in yellow below:

While we’re at it, you also don’t have to worry about the ‘First Chance Exception’ errors you also see in the debugger output window when AutoCAD starts. These just indicate an exception has been thrown for some reason or other. An exception being thrown isn’t a big deal – the problem only comes if the are not handled.