office-interop

I am just starting to fiddle with Excel via C# to be able to automate the creation, and addition to an Excel file. I can open the file and update its data and move through the existing worksheets. My problem is how can I add new sheets? I tried: Excel.Worksheet newWorksheet; newWorksheet = (Excel.Worksheet)excelApp.ThisWorkbook.Worksheets.Add( Type.Missing, Type.Missing, Type.Missing, Type.Missing); But I get below COM Exception and my googling has not given me any answer. Exception from HRESULT: 0x800A03EC Source is: "Interop.Excel" I am hoping someone maybe able to put me out of my misery.

I'm looking for a way to open a New mail in Outlook window. I need programically fill: from, to, subject, body information, but leave this new mail window open so user can verify content / add something then send as normal Outlook msg. Found that: Process.Start(String.Format( "mailto:{0}?subject={1}&cc={2}&bcc={3}&body={4}", address, subject, cc, bcc, body)) But there is no "From" option (my users have more than one mailbox...) Any advice(s) ? Maciej I've finally resolved the issue. Here is piece of code resolving my problem (using Outlook interops) Outlook.Application oApp = new Outlook

I have tried to write data from FileStream , StreamWriter to a word file. It's working fine when the data is text format(using StreamWriter ). But when I tried the same with Binarywriter (for writing image to word doc) it's writing incorrectly to the word document. In below code lstOrderedSpares[index].SparePicture is the byte array containing the image data. I need a solution without OPENXML. This is what I have tried so far : Here is my button click where i am initializing the data to classes and List private void btnCreateQuotation_Click(object sender, EventArgs e) { try { Quotation

I'm running into the classic scenario where, when creating Word COM objects in .NET (via the Microsoft.Office.Interop.Word assembly), the WinWord process won't exit even though I'm properly closing and releasing the objects . I've narrowed it down to the use of the Word.Documents.Add() method. I can work with Word in other ways without a problem (opening documents, modifying contents, etc) and WinWord.exe quits when I tell it to. It's once I use the Add() method (and only when adding a template ) that the process is left running. Here is a simple example which reproduces the problem: Dim word

I am trying to read an Excel file into a list of Data.DataTable, although with my current method it can take a very long time. I essentually go Worksheet by Worksheet, cell by cell, and it tends to take a very long time. Is there a quicker way of doing this? Here is my code: List<DataTable> List = new List<DataTable>(); // Counting sheets for (int count = 1; count < WB.Worksheets.Count; ++count) { // Create a new DataTable for every Worksheet DATA.DataTable DT = new DataTable(); WS = (EXCEL.Worksheet)WB.Worksheets.get_Item(count); textBox1.Text = count.ToString(); // Get range of the worksheet