Quyết định 240/1998/QĐ-TTg về việc sửa đổi, bổ sung Quyết định số 49/1998/QĐ-TTg ngày 28/2/1998 của Thủ tướng Chính phủ do Thủ tướng Chính phủ ban hành | Server Error in Application. Showing a modal dialog box or form when the application is not running in UserInteractive mode is not a valid operation. Specify the ServiceNotification or DefaultDesktopOnly style to display a notification from a service application. Description An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details Showing a modal dialog box or form when the application is not running in UserInteractive mode is not a valid operation. Specify the ServiceNotification or DefaultDesktopOnly style to display a notification from a service application. Source Error An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace InvalidOperationException Showing a modal dialog box or form when the application is not running in UserInteractive mode is not a valid operation. Specify the ServiceNotification or DefaultDesktopOnly style to display a notification from a service application. IWin32Window owner String text String caption MessageBoxButtons buttons MessageBoxIcon icon MessageBoxDefaultButton defaultButton MessageBoxOptions options Boolean showHelp 2662442 String text String caption MessageBoxButtons buttons MessageBoxIcon icon 23 String msg 38 String Function String Message 566 Int32 BlockID Int32 OffsetBin Boolean IsDoc String fileCache Boolean Success 2229 107 6846 Object sender EventArgs e 1158 .