C# and excel deleting rows - c#

I want to write from my form (in C#) to an excel spread sheet and delete certain rows if blank.
I can write perfectly fine to a speadsheet and save it, but lets say the user entered data into row a1, a2, a3, and a4, I now want to delete all the rows in between a4 and a29.
All I need is to find out how to delete a certain range of cells.
Thanks

// Here is the answers to
// 1. Delete entire row - Below rows will shift up
// 2. Delete few cells - Below cells will shift up
// 3. Clear few cells - No shifting
using Excel = Microsoft.Office.Interop.Excel;
Excel.Application ExcelApp = new Excel.Application();
Excel.Workbook ExcelWorkbook = ExcelApp.Workbooks.Open(ResultFilePath);
ExcelApp.Visible = true;
Excel.Worksheet ExcelWorksheet = ExcelWorkbook.Sheets[1];
Excel.Range TempRange = ExcelWorksheet.get_Range("H11", "J15");
// 1. To Delete Entire Row - below rows will shift up
TempRange.EntireRow.Delete(Type.Missing);
// 2. To Delete Cells - Below cells will shift up
TempRange.Cells.Delete(Type.Missing);
// 3. To clear Cells - No shifting
TempRange.Cells.Clear();

You can use this. İt's working ...
_Application docExcel = new Microsoft.Office.Interop.Excel.Application { Visible = false };
dynamic workbooksExcel = docExcel.Workbooks.Open(#"C:\Users\mahmut.efe\Desktop\Book4.xlsx");
var worksheetExcel = (_Worksheet)workbooksExcel.ActiveSheet;
((Range)worksheetExcel.Rows[2, Missing.Value]).Delete(XlDeleteShiftDirection.xlShiftUp);
workbooksExcel.Save();
workbooksExcel.Close(false);
docExcel.Application.Quit();
For more information you can visit this web site

You can do it using a Range Object. I assume here that you are using Excel interop.
Let say you have your book open, then set the range then delete it
It should look something like this
ApplicationClass excel = new ApplicationClass();
//Abrir libro y seleccionar la hoja adecuada aqui
//...
Microsoft.Office.Interop.Excel.Range cel = (Range)excel.Cells[rowIndex, columnIndex];
cel.Delete();

You can specify a cell (eg. A1) and find the entire row containing that cell as a range and then can delete the row.
excel.Worksheet sheet = (excel.Worksheet)excelWorkBook.Sheets["sheet1"];
excel.Range cells = (excel.Range)sheet.Range["A1", Type.Missing];
excel.Range del = cells.EntireRow;
del.Delete();
The above given code will delete first row from sheet1

To remove a row you need an only simple row of code as a follow
xlWorkSheet.Rows[NUMBER_ROW].Delete();

using Microsoft.office.interop.excel delete rows using workseet range
Excel.Application xlApp = new Excel.Application();
Excel.Workbook xlWorkbook = xlApp.Workbooks.Open(srcFile);
Excel.Worksheet workSheet = xlWorkbook.Sheets[1];
Excel.Range range = workSheet.Rows[2];
range.Delete();
xlWorkbook.SaveAs(dstFile);
xlWorkbook.Close();
xlApp.Quit();

Related

How to copy an Array to an Excel Range in C#?

How do I copy an Array to an Excel Range in C#?
Why does the below code not work?
If I assign it like this, then in each cell is the same value
Workbook workbook;
Worksheet worksheet;
List<double> flow = new List<double>();
workbook = excel.Workbooks.Open(filename);
worksheet = workbook.Worksheets.Add();
worksheet.Range[$"$A$1:$A{flow.count}"].Value = flow.ToArray();
Of course the list is filled with values. I have omitted this part here.
replace your last line with
Excel.Range range = sheetSource.UsedRange.Columns[columnIndx];
range.Value = application.WorksheetFunction.Transpose(flow.ToArray());

Get the last cell with a value in a selection Excel C#

I want to locate the last cell with a value from the selection made by a user in Excel.
When running the code below the lastCell variable returns the last cell in the sheet instead of the last cell in the selection.
I have no idea why this is happening as I'm telling the lastCell to use my selection.
Any information would be appreciated.
My code is as follows.
Excel.Range selectedRange = excelApp.Selection;
Excel.Worksheet ws = excelApp.ActiveWorkbook.ActiveSheet;
Excel.Range lastCell = selectedRange.Cells.SpecialCells(Excel.XlCellType.xlCellTypeLastCell, Type.Missing);
var newSelectedRange = ws.Cells.Range[selectedRange.Item[1, 1], lastCell];

identify if excel cell has more than 2 decimal places

I have multiple excel files, i need to create a small tool(C#) where i need to create a log file to tell, which excel file and cell has more than 2 decimal places in it.
Also is it possible to highlight on excel cell which has more than 2 decimal places
yes it's possible, i tried to iterate through all active(cell has value) cells
Microsoft.Office.Interop.Excel.Application excel = new Microsoft.Office.Interop.Excel.Application();
Workbook wb = excel.Workbooks.Open(path);
Worksheet excelSheet = wb.ActiveSheet;
var test = excelSheet.Cells[x, y].Value.ToString();
int chk = GetDecimalCount(decimal.Parse(test));
Tool is now ready

How to get first unoccupied rows from Excel file using c#.net?

I am on a winform application which performs operations with excel files.
Now i have got an issue that i need to get first unused rows occured before a used row(edited row).
I have used the below code and which gives only the usedrange.
string fileName = Directory.GetCurrentDirectory()+"\\123.xlsx";
Excel.Application xlApp;
Excel.Workbook xlWorkbook;
xlApp = new Excel.Application();
xlWorkbook = xlApp.Workbooks.Open(fileName);
Excel._Worksheet xlWorksheet = (Excel._Worksheet)xlApp.Workbooks[1].Worksheets[1];
Excel.Range excelCell = xlWorksheet.UsedRange;
Object[,] values = (Object[,])excelCell.Value2;
int rows = values.GetLength(0);
int cols = values.GetLength(1);
Exmlple:
From the above example i need to get the result as '3' Cols and '10' rows.
Now its '3'Cols and '7'rows.
Please help me if there is any idea for this. Thank You.
Quick and dirty - you could use something like the following:
int rows = excelCell.Rows.Count + excelCell.Row - 1;
And something similar for columns.

excel cell coloring

I am using c# to color particular cells of excel file.
I am using:
Application excel = new Application();
Workbook wb = excel.Workbooks.Open(destPath);
Worksheet ws = wb.Worksheets[1];
ws.get_Range(ws.Cells[row, clmn]).Cells.Interior.Color = 36;
...to color cells, but this is not working.
Can anyone help me out?
Try something like that
ws.Cells[row, clmn].Interior.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.Red)
Cells[row, clmn] is a range so you don't need to call get_Range() and there is a enum that you can use for colors.
ws.Cells[row, clmn].Interior.Color = XlRgbColor.rgbBlack;
If you want to set color by color index, you need to use this method:
Cells[row, col].Interior.ColorIndex = 36;
You can color a cell or a entire column or entire row.
The below code will help you out.
xlWorkSheet.get_Range(xlWorkSheet.Cells[2, 2], xlWorkSheet.Cells[2, 4]).Interior.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.Green);
else
xlWorkSheet.get_Range(xlWorkSheet.Cells[2, 3], xlWorkSheet.Cells[2, 3]).Interior.Color = Excel.XlRgbColor.rgbRed;
Here xlWorksheet is the object excel Worksheet object.
get_Range takes 2 variable one start cell and other is end cell.
so if you specify both the values same then only one cell is colored.
xlWorkSheet.cells[row, column] is used to specify a cell.
System.Drawing.ColorTranslator.ToOle(SystemDrawing.Color.Green) is used to define the color in OLE format.
Excel.XlRgbColor.rgbRed is a excel way of coloring the cells
This method gives access to large number of colors which can be found here list of colors
The below code is the way i defined the excel worksheet.
Excel.Workbook xlWorkBook;
Excel.Worksheet xlWorkSheet;
Excel.Range xlwidthadjust; //used this to adjust width of columns
object misValue = System.Reflection.Missing.Value;
xlWorkBook = xlApp.Workbooks.Add(misValue);
xlWorkSheet = (Excel.Worksheet)xlWorkBook.Worksheets.get_Item(1);
with this code i am sure that you wont get this exception Exception from HRESULT: 0x800A03EC
Make sure you are using:
using Excel = Microsoft.Office.Interop.Excel;
If you have a variable for the range you want to change, then use:
chartRange = xlWorkSheet.get_Range("a5", "a8");
chartRange.Interior.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.Black);
If you want to just change the color of a specific cell, then use:
xlWorkSheet.Cells[row, col].Interior.Color = System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.Black);
...where 'row' is the row number, and 'col' is the column number assigned to the given lettered columns (starting at 1).
Exception from HRESULT: 0x800A03EC
Solution: Change the misValue to sheet1, sheet2 or sheet3.
xlWorkBook = xlApp.Workbooks.Add("sheet1");
This works for me. system.reflaction.missing.value what was that, it is not related to Excel.workbooks.add came from a Excel file default value.
When you create a Excel file, the default worksheets are sheet1, sheet2 and sheet3.

Categories

Resources