how to read web.config from iis web directory

[gr8Ashish]

hi all
i am using a windows application as well as web application developed in visual studio 2010 beta 2 using .net framework 4 on windows xp/windows server 2008/windows7
i am able to read web.config file on system running windows XP sp2 but same is not read by windows 7 and windows server 2008
i installed my web application on iis 7 on said windows with .net 4 but it not read web.config by my windows application.
i used below code on form_load in windows application for reading that web.config-

Dim webStr As Configuration.Configuration=WebConfigurationManager.OpenWebConfiguration("/Site/")
Dim webConstr As String = webStr.ConnectionStrings.ConnectionStrings("connStr").ConnectionString
                Dim getIdx As Integer = webConstr.IndexOf("User ID=", 0)
                getIdx += 8
                Dim getIdx2 As Integer = webConstr.IndexOf(";", getIdx)
                Dim strLen As Integer = getIdx2 - getIdx
                sqlUid = webConstr.Substring(getIdx, strLen)
 

below is my web.config exist in c:\inetpub\wwwr oot\site\ folder -

<?xml version="1.0"?>
<configuration>
    <connectionStrings>
        <remove name="LocalSqlServer"/>
        <add name="LocalSqlServer" connectionString="Data Source=myMacine;Initial Catalog=ASPNETDB;Persist Security Info=True;integrated security=true" providerName="System.Data.SqlClient"/>
        <add name="connStr" connectionString="Data Source=myMachine;Initial Catalog=abc;Persist Security Info=True;User ID=xyz;" providerName="System.Data.SqlClient"/>
    </connectionStrings>
.......
......
</configuration>
 

the error comes in reading this is -

Failed to map the path '/site'

and below is the full exception path-

at System.Web.Configuration.ProcessHostConfigUtils.MapPathActual(String siteName, VirtualPath path)
   at System.Web.Configuration.ProcessHostMapPath.MapPathCaching(String siteID, VirtualPath path)
   at System.Web.Configuration.ProcessHostMapPath.System.Web.Configuration.IConfigMapPath2.MapPath(String siteID, VirtualPath path)
   at System.Web.Configuration.WebConfigurationHost.InitForConfiguration(String& locationSubPath, String& configPath, String& locationConfigPath, IInternalConfigRoot configRoot, Object[] hostInitConfigurationParams)
   at System.Configuration.Configuration..ctor(String locationSubPath, Type typeConfigHost, Object[] hostInitConfigurationParams)
   at System.Configuration.Internal.InternalConfigConfigurationFactory.System.Configuration.Internal.IInternalConfigConfigurationFactory.Create(Type typeConfigHost, Object[] hostInitConfigurationParams)
   at System.Web.Configuration.WebConfigurationHost.OpenConfiguration(WebLevel webLevel, ConfigurationFileMap fileMap, VirtualPath path, String site, String locationSubPath, String server, String userName, String password, IntPtr tokenHandle)
   at System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration(String path)
   at appName.FormName.Form_Load(Object sender, EventArgs e) in E:\myapp\page.vb:line 130

I hope anyone has the answer for me
i have to install it by two day so please help me
thanks in advanced

[Frinavale]

Instead of "opening" the web.config have you considered just using:

Dim webConstr As String = System.Configuration.ConfigurationManager.ConnectionStrings("connStr").ConnectionString

-Frinny

[gr8Ashish]

thanks for your reply frinny
but it does not help and its almost same as i already did above..
well i am not able to read connection string by above methods till now

you or anybody has the solution pls tell me

[Frinavale]

Did you try what I recommended?
It may look "close" to what you're doing, but it's not the same thing.
If you did try this, then you should have got a different error message....

I used MSDN to look up what the OpenWebConfigur ation Method did and the documentation said that it opens the web-application configuration file as a Configuration object using the specified virtual path to allow read or write operations.

I'm going to pretend that you just don't want to try what I recommended previously and will recommend that you try using this instead:

Dim webStr As Configuration.Configuration=WebConfigurationManager.OpenWebConfiguration("~/")

Or, if your web.config file is located in the root directory of the site, don't even pass it "~/" just pass it nothing because the documentation says that if a null reference (Nothing in Visual Basic) is passed to the OpenWebConfigur ation method the root web.config file is opened....

So you could try:

Dim webStr As Configuration.Configuration=WebConfigurationManager.OpenWebConfiguration()

And it should open the root web.config file.

-Frinny

[gr8Ashish]

Frinny
this method-

Dim webStr As Configuration.Configuration=WebConfigurationManager.OpenWebConfiguration()
 

give me error like this in windows application while try to read connection string in c:\inetpub\wwwr oot\site\web.co nfig- on windows server 2008

NullReferenceexception was caught
object reference not set to an instance of an object
 

and your other post i try this-

Dim webStr As Configuration.Configuration=WebConfigurationManager.OpenWebConfiguration("/site")

will cause

Failed to map the path '/site'

and with below

Dim webStr As Configuration.Configuration=WebConfigurationManager.OpenWebConfiguration("~/")

will tell that -

the application relative virtual path '~/' is not allowed here

and the last one

Dim webStr As Configuration.Configuration=WebConfigurationManager.OpenWebConfiguration()

will give message at compile or debug time that

Overlaod resolution failed becuae no accessible 'OpenWebConfiguration' accepts this number of of a arguments.

so i am helpless ;)

[gr8Ashish]

ok can you tell me how to read the web.config file's configuration section from getsection method

?


? pls giv me example