Solved

how to no-touch deploy the db access winform?

Posted on 2004-10-10
6
518 Views
Last Modified: 2012-05-05
hello
i write a winform app,in the form there is a datagrid and a button.when i click the button,it connect to the oracle,and retrieve the data to display them in the datagrid.the button click event code as following:

            private void button1_Click(object sender, System.EventArgs e)
            {
                  DataSet dataSet1=new DataSet("dataset1");            
                  String connectionString="Data Source=zbcdb;User Id=scott;Password=password;";
                  OracleConnection connection1=new OracleConnection(connectionString);
                  OracleCommand command1=new OracleCommand("select * from emp");
                  command1.CommandType=CommandType.Text;
                  connection1.Open();
                  command1.Connection=connection1;

                  OracleDataAdapter oracleDataAdapter1=new OracleDataAdapter();
                  oracleDataAdapter1.SelectCommand=command1;
                  oracleDataAdapter1.Fill(dataSet1,"emp");
                  dataGrid1.SetDataBinding(dataSet1,"emp");
            }


both the visual studio and oracle database are installed in my machine,when i try it in my machine,it works well,but after i copy the "exe" file to the iis(NO-TOUCH DEPLOYMENT),and call it from the OTHER client machine,the following exception is thrown:

************** Exception Text **************
System.DllNotFoundException: Unable to load DLL (oci.dll).
   at System.Data.OracleClient.DBObjectPool.GetObject(Object owningObject, Boolean& isInTransaction)
   at System.Data.OracleClient.OracleConnectionPoolManager.GetPooledConnection(String encryptedConnectionString, OracleConnectionString options, OracleConnection owningObject, Boolean& isInTransaction)
   at System.Data.OracleClient.OracleConnection.OpenInternal(OracleConnectionString parsedConnectionString, Object transact)
   at System.Data.OracleClient.OracleConnection.Open()
   at ch10_01.Form1.button1_Click(Object sender, EventArgs e)
   at System.Windows.Forms.Control.OnClick(EventArgs e)
   at System.Windows.Forms.Button.OnClick(EventArgs e)
   at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ButtonBase.WndProc(Message& m)
   at System.Windows.Forms.Button.WndProc(Message& m)
   at System.Windows.Forms.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)


************** Loaded Assemblies **************
.............................................
.............................................
.............................................
..............................................

----------------------------------------
System.Data
    Assembly Version: 1.0.5000.0
    Win32 Version: 1.1.4322.573
    CodeBase: file:///c:/winnt/assembly/gac/system.data/1.0.5000.0__b77a5c561934e089/system.data.dll
----------------------------------------
....................
...................

----------------------------------------
System.Data.OracleClient
    Assembly Version: 1.0.5000.0
    Win32 Version: 1.1.4322.573
    CodeBase: file:///c:/winnt/assembly/gac/system.data.oracleclient/1.0.5000.0__b77a5c561934e089/system.data.oracleclient.dll
----------------------------------------
..........................
...........................
............................



as you can see,the client can't find the "oci.dll",because i haven't installed the oracle client software in the client machine,and i don't want to install ANY software in the client side. so that i try to copy the "oci.dll" to the same directory in the iis as the exe file.but client can't find it EITHER.maybe i should write the config file to tell the client where to find the "oci.dll",but i don't know how because i am a newbie to dotnet.


who can tell me how to solve the problem?

thank you very much!!!!!  
 
0
Comment
Question by:zbcong
  • 2
6 Comments
 
LVL 14

Accepted Solution

by:
AvonWyss earned 500 total points
ID: 12269453
The oracle client is a COM component, and System.Data.OracleClient is only an interop wrapper. Therefore, a XCOPY installation dows not work in this case. There are, however, different solutions to solve this:

- Make a service on the server that accepts remoting calls and acts as proxy for the oracle client. This would prevent the client from needing and oracle stuff, and it wouldn't even need an oracle DB connection.

- Add some code that permanently or temporarily installs the needed COM components when the application is run (basically, do what REGSVR32 does) on the fly without user interaction. This would prevent you from using an installer or anything.
0
 
LVL 14

Expert Comment

by:AvonWyss
ID: 12512514
I made two suggestions which would solve the issue. No feedback recevied...
0
 

Author Comment

by:zbcong
ID: 12520620
sorry AvonWyss, i forgot to answer.

your first suggestions can solve my problem well. to your second suggestion, i also feel some interest, could your give me a little more detailed instruction? such as: if the app register the "com" component on the fly, the app must copy the  com to local machine, how?

thank you.
0

Featured Post

Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Article by: Ivo
C# And Nullable Types Since 2.0 C# has Nullable(T) Generic Structure. The idea behind is to allow value type objects to have null values just like reference types have. This concerns scenarios where not all data sources have values (like a databa…
This article is for Object-Oriented Programming (OOP) beginners. An Interface contains declarations of events, indexers, methods and/or properties. Any class which implements the Interface should provide the concrete implementation for each Inter…
This video shows how to quickly and easily add an email signature for all users on Exchange 2016. The resulting signature is applied on a server level by Exchange Online. The email signature template has been downloaded from: www.mail-signatures…
Email security requires an ever evolving service that stays up to date with counter-evolving threats. The Email Laundry perform Research and Development to ensure their email security service evolves faster than cyber criminals. We apply our Threat…

803 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question