TargetInvocationException was unhandled by user code

MattHoff · July 27th, 2010, 02:34 PM

Hello

can anyone please help me with this issue.

i have finished chapter 4.

When I run the project i get the error - TargetInvocationException was unhandled by user code.

The following line of code is higlighted in yellow:

Code:

objectType.InvokeMember(LoadMethodName, BindingFlags.InvokeMethod, null, listObject, _methodParameters.ToArray());

tha line should load the object.

I think there is a problem in the web.config file.

I have the following settings for the web.config file

Code:

<connectionStrings>
<add name="EAD_ConnString" connectionString="Server=win4zjrzd08qt7; Initial Catalog=EAD;" providerName=""/>
 </connectionStrings>

The EAD_ConnString is a string defined in the DBHelper file and is passed as parameter in the ConnectionStrings method of the ConfigurationManager class as follow

Code:

public class DBHelper
    {
        private const string EAD_CONNSTRING_KEY = "EAD_ConnString";

        public static string GetEADConnectionString()

        {
            return 

ConfigurationManager.ConnectionStrings[EAD_CONNSTRING_KEY].ConnectionString;
        
        }

    }

Please help me if you can as i can not run the application and therefore can not test anything.

Thank you

Regards

MattHoff

Ziaulhassan · October 10th, 2010, 01:12 PM

Dear ,
I am facing the same problem would you please guide me how to resolve this issue. Thank you in advance and i am waiting for your reply.
best regards
Zia ul Hassan

NetWorld · October 13th, 2010, 11:38 AM

Try this: Find the DataSource name of you SQL Server.
It might be something like: ZacksPC

then use this for your connection string

<connectionStrings>
<add name="EAD_ConnString" connectionString="Data Source=ZacksPC; Initial Catalog=EAD;Integrated Security=True"/>
</connectionStrings>

Good Luck!