Initilizing Add-in Application when creating excel add-in in c#

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I am creating an Excel Add-Ins for Office 2010. Earlier i was doing code in Visual Studio 2010, .net framework 3.5 on ThisAddIn_Startup like

private void ThisAddIn_Startup(object sender, System.EventArgs e)
{
this.Application = (Excel.Application)Microsoft.Office.Tools.Excel.
ExcelLocale1033Proxy.Wrap(typeof(Excel.Application), this.Application);

CreateCommandBar();
}
But now the project is shifted on .net framework 4.0 then ExcelLocale1033Proxy is obsolete here.

What should i use here? Please guide.

Posted 14-Nov-13 22:33pm

abhi.crezy

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abhi.crezy · Accepted Answer · 2013-11-17T19:22:00

Unfortunately, you will have to let go of ExcelLocale1033Proxy.

Projects that were created by using Microsoft Visual Studio 2005 Tools for the Microsoft Office System instantiate the Excel Microsoft.Office.Interop.Excel.Application object by using the Microsoft.Office.Tools.Excel.ExcelLocale1033Proxy class. This class has been removed from the portion of the Visual Studio 2010 Tools for Office Runtime that’s used for solutions that target the .NET Framework 4 or the .NET Framework 4.5. Therefore, you must remove or comment out the line of code that references this class.

Just we have to remove ExcelLocale1033Proxy to initialize the Application. There is no need to do this in upgraded framework like .net framework 4.0 and above. This is already initialized.

Reference : http://msdn.microsoft.com/en-us/library/vstudio/ee712587.aspx