Unable to start excel from .NET C#

[Krish]

This is my first attempt, please bear.

I referenced Excel 10.0 Object from VS .NET IDE, I think this creates
Interop Object for Excel.

I have the following code.

------code start----

using System;
using System.Runtime.InteropServices;
using Excel;

namespace ConsoleApplication3
{
/// <summary>
/// Summary description for Class1.
/// </summary>
class Class1
{
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main(string[] args)
{
//
// TODO: Add code to start application here
//
Excel.Application app = new Excel.ApplicationClass();
app.Visible = true;

}
}
}

---code end----

When the start the code I get the following error messages, the build
is OK though.

DefaultDomain': Loaded
'c:\winnt\microsoft.net\framework\v1.0.3705\mscorlib.dll', No symbols
loaded.
'ConsoleApplication3': Loaded 'C:\Documents and
Settings\Administrator\My Documents\Visual Studio
Projects\ConsoleApplication3\bin\Debug\ConsoleApplication3.exe',
Symbols loaded.
'ConsoleApplication3.exe': Loaded 'c:\documents and
settings\administrator\my documents\visual studio
projects\consoleapplication3\bin\debug\interop.excel.dll', No symbols
loaded.
The program '[2604] ConsoleApplication3.exe' has exited with code 0
(0x0).

----

I would really like to know what is going on, Excel is not
instantiated .!

Any help appreciated.

 

[Aravind C]

Hi Krish,

Just to confirm, do you not see Excel coming up at all,
or does it quickly start up and shutdown the moment
your console app exits. Try inserting a Console.ReadLine()
soon after you create an instance of Excel.Application.

Excel.Application excelApp = new Excel.Application();
excelApp.Visible = true;
Console.WriteLine("Excel up and running now. Press any key to close Excel");
Console.ReadLine();
excelApp.Quit();


Regards,
Aravind C

 

[Shankar Krishnan]

Thanks Aravind, I did notice that the console.readline causes
the cmd window to stay there.

What are the error messages that I included at the bottom of the
message, that say no symbols loaded, is this just a message from the
debugger.

Also when you look at the object browser, you see Excel {} the curly
braces does it mean namespace.

Thanks for your help.