vsto - How to insert existing worksheet in Excel using C#? -

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i trying insert existing sheet excel current worksheet. but, instead inserting current worksheet, creates new worksheet. missing in code?

i using this:

workbook wkactive = globals.thisaddin.application.activeworkbook; objbook = globals.thisaddin.application.workbooks.open(idstemplatepath, 0, true, 5, "", "", true, xlplatform.xlwindows, "\t", false, false, 0, true, false, false);                                 wkactive.sheets.add(objbook.sheets[1], type.missing, type.missing, type.missing); wkactive.save(); wkactive.close();

from mvp:

i believe worksheet.copy method want. assuming using vsto, following code demonstrates 1 way copy worksheet non-vsto workbook workbook in vsto customization. particular example copies first worksheet in non-vsto workbook named "myworkbook.xls" vsto workbook, after "sheet3". 

excel.workbook workbook = globals.thisworkbook.application.workbooks.open(@"c:\myworkbook.xls", missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing);  excel.worksheet worksheet = workbook.sheets[1] excel.worksheet;  worksheet.copy(missing, globals.sheet3.innerobject);

the code first opens non-vsto workbook named "myworkbook.xls". code copies first worksheet of workbook vsto workbook calling copy method of non-vsto worksheet, , passing in vsto worksheet want copy non-vsto worksheet after.

the tricky vsto-specific part of code fact passes in innerobject property instead of globals.sheet3 copy method. because copy expects microsoft.office.interop.excel.worksheet, , vsto worksheet (that is, globals.sheet3) microsoft.office.tools.excel.worksheet. innerobject property exposes microsoft.office.interop.excel.worksheet underlies microsoft.office.tools.excel.worksheet.


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