ASP.NET PDF Viewer using C#, VB/NET

The second restriction sounds at least as strange as the first one: it is not possible to load a mixed-code EXE assembly dynamically into a process. Typically, an EXE file is automatically loaded when a process is started. In this case, there is no need to load the EXE file dynamically. However, the Assembly::Load and Assembly::LoadFrom APIs (discussed in 4) support loading not only DLL assemblies, but also EXE assemblies. Loading an assembly dynamically allows you to reflect on the managed types defined in the assembly. Attempting to load a mixed-code EXE file via an assembly loading API causes a FileLoadException with the following message: Error: Attempt to load an unverifiable executable with fixups (IAT with more than 2 sections or a TLS section.) (Exception from HRESULT: 0x80131019) When the step-by-step approach for project reconfiguration is covered later in this chapter, you will meet such an exception in a concrete context. Several tools that come with the .NET Framework SDK load assemblies dynamically. As an example, a tool called XSD.EXE loads an assembly dynamically to produce an XML schema

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Note that you can also use the DBMS_PROFILER in a much more intuitive fashion by using the GUI-based TOAD software distributed by Quest Software (http://www.quest.com).

"vsize") curr_proc_size=`echo $pid_string | awk '{print $5}'` test $debug -gt 0 && echo "Current size of $process pid \ $pid is $curr_proc_size"

You use the DBMS_ERRLOG package to create an error-logging table that captures all errors during a DML operation, and enables the operation to continue rather than terminate when it encounters errors. In the following example, I create an error-logging table named ERRLOG_TAB, which holds all the errors that may arise during any DML operations on the table named TEST: SQL> EXECUTE DBMS_ERRLOG.CREATE_ERROR_LOG (dml_table_name => 'TEST',err_log_table_name => 'ERRLOG_TAB',err_log_table_owner => 'HR',err_log_table_space => 'USERS'); PL/SQL procedure successfully completed. SQL> The error-logging table you created using the preceding procedure contains two types of columns: columns showing you the Oracle error number and the error messages, and the original columns of the TEST table, as shown here:

SQL> DESCRIBE ERRLOG_TAB Name ----------------ORA_ERR_NUMBER$ ORA_ERR_MESG$ ORA_ERR_ROWID$ ORA_ERR_OPTYP$ ORA_ERR_TAG$ PERSON_NAME PERSON_ID PERSON_DEPT SQL>

Null ----

Type -------------NUMBER VARCHAR2(2000) ROWID VARCHAR2(2) VARCHAR2(2000) VARCHAR2(4000) VARCHAR2(4000) VARCHAR2(4000)

We have to check the current memory size against the monitor thresholds one last time. If they are within a low or high warning status, we call the notify() function for output and termination. If not, the code outputs that the process size is OK.

The first five columns are mandatory control columns that show the Oracle error information, and the last three columns are the columns of the table being monitored by the error-logging table.

containing XML types for managed types defined in the assembly. This tool, as well as all other tools that load an assembly dynamically, cannot be used with mixed-code EXE files. (Notice that this restriction applies only to mixed-code EXE files. It does not to apply to mixed-code DLLs, nor to EXE files built with /clr:pure or /clr:safe.) The component designers in Visual Studio also try to load the project output dynamically. Since this is not supported for mixed-code EXE files, the component designers have limited functionality if you try to edit components in mixed-code EXE projects. However, instead of compiling an existing project with /clr:pure, you should consider factoring the code that requires the component designer out into a separate DLL.