I am getting the following error when trying to Save as Document Object
while trying to implement a word automation in C#:
System.Runtime.InteropServices.COMException
(0x80020005): Type mismatch. (Exception from HRESULT: 0x80020005 (DISP_E_TYPEMISMATCH))
at Microsoft.Office.Interop.Word.DocumentClass.SaveAs(Object&
FileName, Object& FileFormat, Object& LockComments, Object& Password, Object& AddToRecentFiles, Object& WritePassword, Object& ReadOnlyRecommended, Object& EmbedTrueTypeFonts, Object& SaveNativePictureFormat, Object& SaveFormsData, Object& SaveAsAOCELetter, Object& Encoding, Object& InsertLineBreaks, Object& AllowSubstitutions, Object& LineEnding, Object& AddBiDiMarks)
at TestWordAutomation.Form1.SaveAs(String
fileName) in D:\dotnet\WordAutomation\TestWordAutomation\TestWordAutomation\Form1.cs:line 246
at TestWordAutomation.Form1.button4_Click(Object
sender, EventArgs e) in D:\dotnet\WordAutomation\TestWordAutomation\TestWordAutomation\Form1.cs:line 557
I am calling the Save As
method like so:
MySaveAs("Doc1.doc");
MySaveAs("Doc2.doc");
MySaveAs("Doc3.doc");
//I have a MySaveAs function
public void MySaveAs(string fileName)
{
object FileName = null, FileFormat = null, LockComments = null, _Password = null, AddToRecentFiles = null, _WritePassword = null, _ReadOnlyRecommended = null, _EmbedTrueTypeFonts = null, SaveNativePictureFormat = null, _SaveFormsData = null, SaveAsAOCELetter = null, Encoding = null, InsertLineBreaks = null, AllowSubstitutions = null, LineEnding = null, AddBiDiMarks = null;
FileName = (object) fileName;
oDoc.SaveAs(ref FileName, ref FileFormat, ref LockComments, ref _Password, ref AddToRecentFiles,
ref _WritePassword, ref _ReadOnlyRecommended, ref _EmbedTrueTypeFonts,
ref SaveNativePictureFormat, ref _SaveFormsData, ref SaveAsAOCELetter, ref Encoding,
ref InsertLineBreaks, ref AllowSubstitutions, ref LineEnding, ref AddBiDiMarks);
}
Can any one help me to resolve this ?
'Tis painful. I remember getting that working with the Word/Excel Interop. Not to be flippant, but one of the parameters has an incorrect type. Hopefully the following helps, but I did a number of these types of definitions.
static object s_missing = System.Reflection.Missing.Value;
static object s_true = true;
static object s_false = false;
static object s_forcesave = Word.WdSaveOptions.wdSaveChanges;
static Word._Application s_app = null;
...
return s_app.Documents.Open ( ref filename,
ref s_missing,
ref s_missing,
ref s_missing,
ref s_missing,
ref s_missing,
ref s_missing,
ref s_missing,
ref s_missing,
ref s_missing,
ref s_missing,
ref s_missing,
ref s_missing,
ref s_missing,
ref s_missing,
ref s_missing );
You cannot pass null into any of the interop function call - use Missing.Value instead (as suggested by Kenny)
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