excel-interop

I'm trying to determine whether or not an instance of Excel of running with a particular file open, and if so attach to it so I can control that instance. I've searched around and the majority of what I've got have come from this question. It has a reference to another site , but unfortunately it's dead for me so I cannot read up on it. My code so far is; //Is Excel open? if (Process.GetProcessesByName("EXCEL").Length != 0) { Process[] processes = Process.GetProcesses(); foreach (Process process in processes) { //Find the exact Excel instance if (process.ProcessName.ToString() == "EXCEL" &&

I've written the following simple C# console application to export all the charts from an Excel Workbook. It works just fine unless the chart has not been scrolled to since opening the document , in which case an empty image file is generated. using Excel = Microsoft.Office.Interop.Excel; using System; using System.Diagnostics; namespace ExcelExporter { class ChartExporter { const string EXPORT_TO_DIRECTORY = @"C:\Users\Sandy\Desktop\Excel\Charts"; static void Main(string[] args) { Excel.Application app = System.Runtime.InteropServices.Marshal.GetActiveObject("Excel.Application") as Microsoft

I am looking to apply a border to one cell using the Microsoft.Office.Interop.Excel library. I am running a while-loop that is search for a empty cell within a certain column, once the cell is found I want to apply a border to it. I know there many forums on this using Ranges, but I can't use the range functionality since I do not know what cell it is being applied to exactly. My idea was: (Excel.Range)xlWS.Cells[row,1].Borders.LineStyle = (Whatever Value); Any advice? (besides links to other forums, I already looked through tons of forms)? Excel.Range range = xlWS.UsedRange; Excel.Range cell

I am trying to add an image into Excel cell at row 3 column 1 as specified below. The compiler gave me an error. Did I do something wrong here? Thanks in advance for your suggestions. Excel.Application xlApp; Excel.Workbook wb; Excel.Worksheet ws; object misValue = System.Reflection.Missing.Value; xlApp = new Excel.Application(); wb = xlApp.Workbooks.Add(misValue); ws = (Excel.Worksheet)wb.Worksheets.get_Item(1); ws.Cells[3, 1] = ws.Shapes.AddPicture("C:\\photos\\4a.png", Microsoft.Office.Core.MsoTriState.msoFalse, Microsoft.Office.Core.MsoTriState.msoCTrue, 75, 75, 350, 50); you have to add

I'm working on a C# Application thats interacts with an Excel instance using excel interop.dll v11.0. I'm using the following code to copy a chart from the excel worksheet to the clipboard: public Image ReadChart(Chart chartAccess) { try { Microsoft.Office.Interop.Excel.Worksheet sheet = workbook.Sheets[chartAccess.Sheet.Name]; Microsoft.Office.Interop.Excel.ChartObject chart = sheet.ChartObjects(chartAccess.Name); chart.Chart.ChartArea.Copy(); // exception gets thrown here return System.Windows.Forms.Clipboard.GetImage(); } catch (COMException) { // display error dialog etc... } This worked