Report Viewer应用程序问题 [英] Report Viewer app problem
问题描述
嗨！
我已经构建了一个封装报表查看器控件的Winforms .net程序集（dll）（启用了com）。从.net exe启动它时它工作正常。当从vb6应用程序启动它时，它会在所有具有表达式的表单上崩溃（可能是使用microsoft.reportviewer.processingobjectmodel.dll）。该错误发生在"localreport.setparameters"上。电话。
I've built a Winforms .net assembly (dll) (com-enabled) that encapsulates the report viewer control. When launching it from a .net exe it works fine. When launching it from a vb6 app it crashes on all forms that have expressions (presumably that are using microsoft.reportviewer.processingobjectmodel.dll). The error occurs on the "localreport.setparameters" call.
确切的错误是：
本地处理期间发生错误。无法加载表达式主机程序集。详细信息：无法加载文件或程序集'expression_host_c69db59c9e3b4b98a64876ea5cb1a0bc。版本10.8.5072762，Culture = neutral，PublicKeyToken = null'或其依赖项之一。无法授予执行权限（异常形式HRESULT 0x80131418
An error occurred during local processing. Failed to load expression host assembly. Details: Could not load file or assembly 'expression_host_c69db59c9e3b4b98a64876ea5cb1a0bc. Version 10.8.5072762, Culture=neutral, PublicKeyToken=null' or one of its dependencies. Failed to grant permission to execute (Exception form HRESULT 0x80131418
Expression_host _...的数字部分似乎会根据启动应用程序的内容而改变。
The numeric portion of expression_host_... seems to change depending on what launches the app.
看起来这是一个安全问题.net不知道来自com的安全权限，但世界上的是什么"expression_host ._..."?????这不是我写的任何东西，它确定看起来不像是Microsoft .net的东西！有什么建议或解决方法吗？
It looks like it's a security thing that .net doesn't know the security permissions coming from com but what in the world is "expression_host._..." ????? It's not anything I wrote and it sure doesn't look like a Microsoft .net thing! Any suggestions or workarounds?
谢谢
Glenn
推荐答案
如果有其他人遇到这个我通过改变来实现它
Me.rvReport.LocalReport.ExecuteReportInCurrentAppDomain（AppDomain.CurrentDomain.Evidence）
Me.rvReport.LocalReport.ExecuteReportInCurrentAppDomain(AppDomain.CurrentDomain.Evidence)
To Me.rvReport.LocalReport.ExecuteReportInCurrentAppDomain（System.Reflection.Assembly .GetExecutingAssembly（）。证据） 我不知道为什么会产生差异，但确实如此。 GlennL 这篇关于Report Viewer应用程序问题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
