C# - What Does Managed And Unmanaged Code Mean
Jan 18, 2011Possible Duplicate:
what is the difference between “managed” vs “unmanaged”? I am a beginner in C# ASP.net
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[URL]
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Security Exception:
Description:
The application attempted to perform an operation not allowed by the security policy. To grant this application the required permission contact your system administrator or change the application's trust level in the configuration file.
Exception Details: System.Security.SecurityException:
System.Security.Permissions.SecurityPermission
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Exception from HRESULT: 0x8007007E
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Sep 17, 2010I have a webservice that wraps an unmanaged C++ dll. I'm wondering how I should handle state and multiple connections? I'm thinking that the unmanaged dll will be shared across all connections...is this the case? Note that I am using a shared host so I have limited abilities to modify IIS specifically. If the unmanaged dll is not shared and will have a unique instance for every connection then I have nothing to worry about. If it's the case it's shared then I guess I will have to persist the unmanaged state on a per-connection basis through a DB?
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Oct 6, 2010In our WCF service we use a third party product (product C) for querying an external database. We can not change the code in this third party product.
The library is imported for exemple via Declare Function vbPriopti Lib "PRIMCSAM.dll" (ByVal a As String, ByVal b As Integer) As Integer Declare Function vbConnectionClose Lib "PRIMCSAM.dll" () As Integer etc
The problem we face is that the product C keep connections in memory and refuses more connections from the same user/ip address. And their "vbConnectionClose" subroutine does not do proper clean up, something is left in memory and we can therefore not do a new connection.
The only thing to do a new connection is to restart the wcf servcie appliaction on the web server. But I do not want to close my whole app and restart it because of errors in the product C, instead it would be better to just reload the imported dll again?!
What is the easiest way to handle this problem? Restart/close the imported dll? Work with appdomain?
I tried the FreeLibrary method but it did not work, [URL]
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[DllImport ( "kernel32.dll" , EntryPoint = "LoadLibraryA" )]
public static extern int LoadLibrary( string lpLibFileName );.
[DllImport(@"MyUnamanagedDLL.dll")]
public static extern string DoStuff( );
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When I publish it to our development environement which is running Windows 2003 and IIS 6 then the first 1 or 2 calls works fine but then it simply stops responding. I'm getting no error messages, warnings etc... but I am fast running out of hair!
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Possible To Call The IIS 7+ SetUrl API From A Managed HttpModule?
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<rewrite>
<providers>
<provider name="CustomRewrite" type="MyRewriteProviders.RewriteProvider, MyRewriteProviders,
[code]...
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public ref class Class1 {
public: Class1(){
b1 = gcnew array<System::Int16>(50000);};
[code]...
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'aspnet_wp.exe' (Managed (v2.0.50727)): Loaded 'jpgxkjws'
These statements are showing up in my output window when I'm doing "xml stuff" in my code. For instance I see one of these types of statements getting written to my output window when I execute the following line of code (sandwiched between two Debug.WriteLine statements):
System.Diagnostics.Debug.WriteLine("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! In ToXml(), about to call XMLSerializer: " & Now.ToString("hh:mm:ss.ff"))
xmlSerial = New Xml.Serialization.XmlSerializer(Me.GetType, xmlRoot) 'See a "loaded statement when this executes
System.Diagnostics.Debug.WriteLine("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! In ToXml(), finished call XMLSerializer: " & Now.ToString("hh:mm:ss.ff"))
These statements are pretty expensive, averaging about .75 seconds apiece. Any idea what these are and if it's possible to speed them up? Are these just statements just a artifact of my running my site in debug mode?I was initially perplexed that I couldn't find these files anywhere, but I ran procmon while debugging my asp.net site and did find where these files are located, they are located in
C:Documents and SettingsmyhostnameASPNETLocal SettingsTemp
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[Code]....
Http Error 500.24 - Net Setting Has Been Detected That Does Not Apply In Integrated Managed PipeLine Mode
Aug 16, 2010I try to install IIS 7 on my Win 7, whenever I check . Net Extensibility . AsP .net under Application Development Feature and run http://localhost I get http error 500.24. An asp .net setting has been detected that does not apply in Integrated managed pipeLine mode
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May 7, 2015I am trying to export crystal report to pdf in asp.net, though the code is working well on localhost but on server I get error
HTTP Error 500.23 - Internal Server ErrorAn ASP.Net setting detected that does not apply in Integrated managed pipeline mode.
The crystal report is showing abnormal behaviors.I am using a CrystalReportViewer on which i have set the CrystalReportSource1 using the viewer Tasks.
The code on page load is :-
cn.Open();
DataSet ds = new DataSet();
string sql = "select * from Test";
OleDbDataAdapter da = new OleDbDataAdapter(sql, cn);
da.Fill(ds);
[Code].....
During the troubleshooting i encountered another unusual issue, where i tried a new crystal report with just simple report. That simple crystal report is not showing data & the toolbar images are not rendered. I googled on this but didn't found conclusive thing.
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[Code]....