A first chance exception of type 'System.Invalid CastException' occurred in scs.sr.dal.dll

[karunakar]

Hi All

Here iam getting this Error "Specified cast is not valid."
My Project has Onc solution diffrent class libarary In that solution DALfactory solution iam getting this error
I was calling this function in DALFactory class library(this library generate the DAL.dll)

Another class library has this function

public SecurityInfo Login(string username, string password)
{
IUserSetting us = SCS.SR.DALFacto ry.UserSetting. Create(); (When i was catch the Quick watch "SCS.SR.DALFact ory.UserSetting .Create()" this that time iam getting this error "System.SystemE xception {"Specified cast is not valid."} System.SystemEx ception ")

SecurityInfo getIsusreValid = us.IsUserValid( username,passwo rd);
return getIsusreValid;
}
public static SCS.SR.IDAL.IUs erSetting Create()
{
string path = System.Configur ation.Configura tionSettings.Ap pSettings["WebDAL"];
string className = path + ".UserSetti ng";
return (SCS.SR.IDAL.IU serSetting) Assembly.Load(p ath).CreateInst ance(className) ; (Here Iam getting this error) (this is going to return the securityInfo function)

}

A first chance exception of type 'System.Invalid CastException' occurred in scs.sr.dal.dll

Additional information: Specified cast is not valid.
Regards,
Karunakara Rao.

[Dmitriy Lapshin [C# / .NET MVP]]

Hi,

In this line:

return (SCS.SR.IDAL.IU serSetting) Assembly.Load(p ath).CreateInst ance(className)

Use CreateInstanceA ndUnwrap instead of CreateInstance.

--
Sincerely,
Dmitriy Lapshin [C# / .NET MVP]
Bring the power of unit testing to the VS .NET IDE today!
http://www.x-unity.net/teststudio.aspx
"karunakar" <ka***********@ stcroixsystems. com> wrote in message news:Oi******** ******@TK2MSFTN GP15.phx.gbl...
Hi All

Here iam getting this Error "Specified cast is not valid."
My Project has Onc solution diffrent class libarary In that solution DALfactory solution iam getting this error
I was calling this function in DALFactory class library(this library generate the DAL.dll)

Another class library has this function

public SecurityInfo Login(string username, string password)
{
IUserSetting us = SCS.SR.DALFacto ry.UserSetting. Create(); (When i was catch the Quick watch "SCS.SR.DALFact ory.UserSetting .Create()" this that time iam getting this error "System.SystemE xception {"Specified cast is not valid."} System.SystemEx ception ")

SecurityInfo getIsusreValid = us.IsUserValid( username,passwo rd);
return getIsusreValid;
}
public static SCS.SR.IDAL.IUs erSetting Create()
{
string path = System.Configur ation.Configura tionSettings.Ap pSettings["WebDAL"];
string className = path + ".UserSetti ng";
return (SCS.SR.IDAL.IU serSetting) Assembly.Load(p ath).CreateInst ance(className) ; (Here Iam getting this error) (this is going to return the securityInfo function)

}

A first chance exception of type 'System.Invalid CastException' occurred in scs.sr.dal.dll

Additional information: Specified cast is not valid.
Regards,
Karunakara Rao.

[Ignacio Machin \( .NET/ C# MVP \)]

Hi,

CreateInstanceA ndUnwrap is a member of AppDomain , not of Assembly.
I would check the className to be a correct FQN of the class in question.

replace the line for this:

object tempO = Assembly.Load(p ath).CreateInst ance(className) ;

and see in the watch window what tempO is.

cheers,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation
"Dmitriy Lapshin [C# / .NET MVP]" <x-****@no-spam-please.hotpop.c om> wrote in message news:ep******** ********@TK2MSF TNGP14.phx.gbl. ..
Hi,

In this line:

return (SCS.SR.IDAL.IU serSetting) Assembly.Load(p ath).CreateInst ance(className)

Use CreateInstanceA ndUnwrap instead of CreateInstance.

--
Sincerely,
Dmitriy Lapshin [C# / .NET MVP]
Bring the power of unit testing to the VS .NET IDE today!
http://www.x-unity.net/teststudio.aspx
"karunakar" <ka***********@ stcroixsystems. com> wrote in message news:Oi******** ******@TK2MSFTN GP15.phx.gbl...
Hi All

Here iam getting this Error "Specified cast is not valid."
My Project has Onc solution diffrent class libarary In that solution DALfactory solution iam getting this error
I was calling this function in DALFactory class library(this library generate the DAL.dll)

Another class library has this function

public SecurityInfo Login(string username, string password)
{
IUserSetting us = SCS.SR.DALFacto ry.UserSetting. Create(); (When i was catch the Quick watch "SCS.SR.DALFact ory.UserSetting .Create()" this that time iam getting this error "System.SystemE xception {"Specified cast is not valid."} System.SystemEx ception ")

SecurityInfo getIsusreValid = us.IsUserValid( username,passwo rd);
return getIsusreValid;
}
public static SCS.SR.IDAL.IUs erSetting Create()
{
string path = System.Configur ation.Configura tionSettings.Ap pSettings["WebDAL"];
string className = path + ".UserSetti ng";
return (SCS.SR.IDAL.IU serSetting) Assembly.Load(p ath).CreateInst ance(className) ; (Here Iam getting this error) (this is going to return the securityInfo function)

}

A first chance exception of type 'System.Invalid CastException' occurred in scs.sr.dal.dll

Additional information: Specified cast is not valid.
Regards,
Karunakara Rao.

[Dmitriy Lapshin [C# / .NET MVP]]

I agree - this is most likely the cause. I should have checked the Assembly's method list - shame on me!

--
Sincerely,
Dmitriy Lapshin [C# / .NET MVP]
Bring the power of unit testing to the VS .NET IDE today!
http://www.x-unity.net/teststudio.aspx
"Ignacio Machin ( .NET/ C# MVP )" <ignacio.mach in AT dot.state.fl.us > wrote in message news:ey******** ******@tk2msftn gp13.phx.gbl...
Hi,

CreateInstanceA ndUnwrap is a member of AppDomain , not of Assembly.
I would check the className to be a correct FQN of the class in question.

replace the line for this:

object tempO = Assembly.Load(p ath).CreateInst ance(className) ;

and see in the watch window what tempO is.

cheers,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation
"Dmitriy Lapshin [C# / .NET MVP]" <x-****@no-spam-please.hotpop.c om> wrote in message news:ep******** ********@TK2MSF TNGP14.phx.gbl. ..
Hi,

In this line:

return (SCS.SR.IDAL.IU serSetting) Assembly.Load(p ath).CreateInst ance(className)

Use CreateInstanceA ndUnwrap instead of CreateInstance.

--
Sincerely,
Dmitriy Lapshin [C# / .NET MVP]
Bring the power of unit testing to the VS .NET IDE today!
http://www.x-unity.net/teststudio.aspx
"karunakar" <ka***********@ stcroixsystems. com> wrote in message news:Oi******** ******@TK2MSFTN GP15.phx.gbl...
Hi All

Here iam getting this Error "Specified cast is not valid."
My Project has Onc solution diffrent class libarary In that solution DALfactory solution iam getting this error
I was calling this function in DALFactory class library(this library generate the DAL.dll)

Another class library has this function

public SecurityInfo Login(string username, string password)
{
IUserSetting us = SCS.SR.DALFacto ry.UserSetting. Create(); (When i was catch the Quick watch "SCS.SR.DALFact ory.UserSetting .Create()" this that time iam getting this error "System.SystemE xception {"Specified cast is not valid."} System.SystemEx ception ")

SecurityInfo getIsusreValid = us.IsUserValid( username,passwo rd);
return getIsusreValid;
}
public static SCS.SR.IDAL.IUs erSetting Create()
{
string path = System.Configur ation.Configura tionSettings.Ap pSettings["WebDAL"];
string className = path + ".UserSetti ng";
return (SCS.SR.IDAL.IU serSetting) Assembly.Load(p ath).CreateInst ance(className) ; (Here Iam getting this error) (this is going to return the securityInfo function)

}

A first chance exception of type 'System.Invalid CastException' occurred in scs.sr.dal.dll

Additional information: Specified cast is not valid.
Regards,
Karunakara Rao.