How can I find some value from cell and replace by new value in Excel?
I tryed this but it doesn't works:
Microsoft.Office.Interop.Excel.Application xlapp = new Microsoft.Office.Interop.Excel.Application();
Microsoft.Office.Interop.Excel.Workbook wb =default(Microsoft.Office.Interop.Excel.Workbook);
wb = xlapp.Workbooks.Open(FileName.ToString());
wb.Worksheets[0].Cells.Replace("find","replace");
I would recommend you use NPOI which can be accessed either via codeplex or directly through Nuget in Visual Studio. It gives you the ability to easily upload, edit and create spreadsheets in .NET
Example of uploading a spreadsheet:
HSSFWorkbook hssfworkbook;
void InitializeWorkbook(string path)
{
//read the template via FileStream, it is suggested to use FileAccess.Read to prevent file lock.
//book1.xls is an Excel-2007-generated file, so some new unknown BIFF records are added.
using (FileStream file = new FileStream(path, FileMode.Open, FileAccess.Read))
{
hssfworkbook = new HSSFWorkbook(file);
}
}
You can then use the IRow and ICell collections of the spreadsheet to locate and edit the data you need before doing an export.
More examples can be found here
If interested, you can use GemBox.Spreadsheet for this, like so:
SpreadsheetInfo.SetLicense("FREE-LIMITED-KEY");
// Load your XLS, XLSX, ODS or CSV file.
ExcelFile wb = ExcelFile.Load(FileName.ToString());
ExcelWorksheet ws = wb.Worksheets[0];
// Replace all "find" occurances with "replace" text.
int row, column;
while(ws.Cells.FindText("find", out row, out column))
ws.Cells[row, column].ReplaceText("find", "replace");
// Save your XLS, XLSX, ODS or CSV file.
wb.Save(FileName.ToString());
Also you can find another searching in Excel example here.
All you have to do is replace
wb.Worksheets[0].Cells.Replace("find","replace");
with
wb.Worksheets[1].Cells.Replace("find","replace");
Related
I've been refering to this for adding excel to datatable, but the Workbook and Worksheet objects are not being identified as a objects
(I'm a beginner in c#)
Here is the code
using System.Data;
using System;
class Program
{
static void Main(string[] args)
{
// Create a file stream containing the Excel file to be opened
FileStream fstream = new FileStream("employees_tb.xlsx", FileMode.Open);
// Instantiate a Workbook object
//Opening the Excel file through the file stream
Workbook workbook = new Workbook(fstream);
// Access the first worksheet in the Excel file
Worksheet worksheet = workbook.Worksheets[0];
// Export the contents of 2 rows and 2 columns starting from 1st cell to DataTable
DataTable dataTable = worksheet.Cells.ExportDataTable(0, 0, 2, 2, true);
// Bind the DataTable with DataGrid
dataGridView1.DataSource = dataTable;
// Close the file stream to free all resources
fstream.Close();
}
}
You have not added de Aspose.Cells package in your solution. Try adding it via Project > Manage Nuget Packages >"Aspose.cells"
What I am trying to do: .Net Core Controller -> Read file using OpenXML -> Create new spreadsheet document using OpenXML with selected sheets from the previously read file -> return the newly created file.
Some caveats: These sheets that need to be copied to the new workbook will have formulas, references, dataValidations, named ranges and other sorts of links to other sheets in the original workbook that shouldn't be copied. We only want to copy the values and styles.
What I have tried so far:
Approach 1:
using var stream = new MemoryStream();
SpreadsheetDocument spreadsheetDocument = SpreadsheetDocument.Create(stream, SpreadsheetDocumentType.Workbook);
WorkbookPart workbookpart = spreadsheetDocument.AddWorkbookPart();
workbookpart.Workbook = new Workbook();
WorksheetPart worksheetPart = workbookpart.AddNewPart<WorksheetPart>();
worksheetPart.Worksheet = new Worksheet(new SheetData());
Sheets sheets = spreadsheetDocument.WorkbookPart.Workbook.AppendChild<Sheets>(new Sheets());
workbookpart.Workbook.Save();
using var stream2 = new MemoryStream();
stream2.Write(workbook, 0, workbook.Length);
stream2.Position = 0;
var document = SpreadsheetDocument.Open(stream2, true);
Sheet sheetToCopy = document.WorkbookPart.Workbook.Sheets.Descendants<Sheet>().Where(x => x.Name == "Report Sheet").First();
sheets.Append(sheetToCopy.CloneNode(false));
workbookpart.Workbook.Save();
spreadsheetDocument.Close();
return stream.ToArray();
Approach 2:
I haven't coded this yet, but the idea is to copy each cells value and style from the original sheet, to the new sheet. I am very concerned about the time complexity of this, because the sheets could get very huge.
Approach 3:
I kind of have this working. The process here is to modify the originally downloaded workbook itself by removing the unnecessary worksheets, and clearing the named ranges, and data validations, but no matter how many caveats I delete from the original book, there's always another validation, or conditional formatting still lingering around.
I am really open to any ideas and would greatly appreciate some help from the community.
Thank you for taking a look.
I am trying to embed object into .xlsx document and copy sheets with embedded objects.
1. Copying sheets
This looks like straight forward issue. I have created method to copy the sheets:
static void CopySheetInsideWorkbook(string filename, string sheetName, string clonedSheetName)
{
using (SpreadsheetDocument spreadsheetDocument = SpreadsheetDocument.Open(filename, true))
{
WorkbookPart workbookPart = spreadsheetDocument.WorkbookPart;
WorksheetPart sourceSheetPart = GetWorksheetPartByName(spreadsheetDocument, sheetName);
SpreadsheetDocument tempSheet =
SpreadsheetDocument.Create(new MemoryStream(), spreadsheetDocument.DocumentType);
WorkbookPart tempWorkbookPart = tempSheet.AddWorkbookPart();
WorksheetPart tempWorksheetPart = tempWorkbookPart.AddPart<WorksheetPart>(sourceSheetPart);
WorksheetPart clonedSheet = workbookPart.AddPart<WorksheetPart>(tempWorksheetPart);
Sheets sheets = workbookPart.Workbook.GetFirstChild<Sheets>();
Sheet copiedSheet = new Sheet
{
Name = clonedSheetName,
Id = workbookPart.GetIdOfPart(clonedSheet),
SheetId = (uint) sheets.ChildElements.Count + 1
};
sheets.Append(copiedSheet);
workbookPart.Workbook.Save();
}
}
The ouput is as expected but the embedded files are copied as "Picture" rather than "Object". I unzipped .xlsx file and all looks legit ie. similar to the sheet I copied. Yet still the file cannot be opened on the copied sheet. All images, strings are displayed in correct way.
2. Embedding the object
What I understand I need to do is:
Convert object into oleObject - this will be separate fun.
Add DrawingsPart - It looks like it's read-only and I can only add ImagePart.
Embed Object
Connect both drawing and embedded object part toghether and allocate to some range in spreadsheet.
static void EmbedFileXlsx(string path, string embeddedFilePath, string placeholderImagePath)
{
using (SpreadsheetDocument spreadsheetDocument = SpreadsheetDocument.Open(path, true))
{
WorksheetPart sourceSheetPart = GetWorksheetPartByName(spreadsheetDocument, "Test");
var imagePart = sourceSheetPart.AddImagePart(ImagePartType.Emf, "rId1");
imagePart.FeedData(File.Open(placeholderImagePath, FileMode.Open));
var embeddedObject =
sourceSheetPart.AddEmbeddedObjectPart(#"application/vnd.openxmlformats-officedocument.oleObject");
embeddedObject.FeedData(File.Open(embeddedFilePath, FileMode.Open));
spreadsheetDocument.Save();
}
}
This code just adds embedded objects into the file but does not create any type of relationship between them. This means that file is not visible on the spreadsheet.
I tried copying sheets using ClosedXML as well but unfortunately this is not supported nor the embedding.
I also managed to understand how I can copy sheet into new document with all embedded objects using .xml files inside spreadsheet but I do not think this would be much productive and I would like to achieve this using all the methods inside OpenXML. It looks everything is there but something is amiss.
I am no expert in this, but could this help you on your way?
spreadsheetDocument.CreateRelationshipToPart(SOME ID);
The following code is working fine for .xlsx, but it's not working for .xls. I got this error message
Can not open the package. Package is an OLE compound document. If this is an encrypted package, please supply the password
Code
string filepath = txtBrowse.Text;
FileStream stream = System.IO.File.Open(filepath, FileMode.Open, FileAccess.ReadWrite);
//1. Reading from a binary Excel file ('97-2003 format; *.xls)
IExcelDataReader excelReader = ExcelReaderFactory.CreateBinaryReader(stream);
FileInfo newFile = new FileInfo(filepath);
using (ExcelPackage package = new ExcelPackage(newFile))
{
string sheetName = System.DateTime.Now.ToShortDateString();
foreach (OfficeOpenXml.ExcelWorksheet sheet in package.Workbook.Worksheets)
{
// Check the name of the current sheet
if (sheet.Name == sheetName)
{
package.Workbook.Worksheets.Delete(sheetName);
break; // Exit the loop now
}
}
ExcelWorksheet worksheet = package.Workbook.Worksheets.Add(System.DateTime.Now.ToShortDateString());
}
How do I do this correctly?
EPPlus does not work with the XLS format. Only XLSX. You'll need to find a new library.
I succesfully used Tony's answer https://stackoverflow.com/a/18904633/306515 and simply convert it using Microsoft.Office.Interop.Excel and can still then use epplus
I am trying to convert a xls or xlsx file with multiple sheets into one CSV file using c# and the interop library. I am only getting the one sheet in the CSV file. I know I can specify the sheet to save as or change the active sheet to save that one but I am looking for a solution to append all the sheets to the same CSV file that will work with both xls and xlsx files. I am automating this and don't care what is in the excel document just want to pull the string values out and append it to the csv file. Here is the code I am using:
Microsoft.Office.Interop.Excel.Application app = new Microsoft.Office.Interop.Excel.Application();
app.Visible = false;
app.DisplayAlerts = false;
Workbook wkb = app.Workbooks.Open(fullFilePath);
wkb.SaveAs(newFileName, XlFileFormat.xlCSVWindows);
Is this even possible?
I'm just getting started tackling a similar situation, but I believe this may address your needs:
http://www.codeproject.com/Articles/246772/Convert-xlsx-xls-to-csv
This uses the ExcelDataReader api that you can get from NuGet
http://exceldatareader.codeplex.com/
Like Tim was saying, you're going to have to make sure and possibly validate that the columns and structure are the same between sheets. You may also have to eat the header rows on all the sheets after the first one. I'll post an update and some code samples once I've finished.
Update [7/15/2013]. Here's my finished code. Not very fancy, but it gets the job done. All of the sheets are tables in the DataSet, so you just loop through the tables adding onto your destination. I'm outputting to a MongoDB, but I'm guessing you can swap that out for a StreamWriter for your CSV file rather easily.
private static void ImportValueSetAttributeFile(string filePath)
{
FileStream stream = File.Open(filePath, FileMode.Open, FileAccess.Read);
// Reading from a OpenXml Excel file (2007 format; *.xlsx)
IExcelDataReader excelReader = ExcelReaderFactory.CreateOpenXmlReader(stream);
// DataSet - The result of each spreadsheet will be created in the result.Tables
DataSet result = excelReader.AsDataSet();
// Free resources (IExcelDataReader is IDisposable)
excelReader.Close();
var connectionString = ConfigurationManager.ConnectionStrings[0].ConnectionString;
var database = ConfigurationManager.AppSettings["database"];
var mongoAccess = new MongoDataAccess(connectionString, database);
var cdm = new BaseDataManager();
int ind = 0;
for (int i = 0; i < result.Tables.Count; i++)
{
int row_no = 1;
while (row_no < result.Tables[ind].Rows.Count) // ind is the index of table
// (sheet name) which you want to convert to csv
{
var currRow = result.Tables[ind].Rows[row_no];
var valueSetAttribute = new ValueSetAttribute()
{
CmsId = currRow[0].ToString(),
NqfNumber = currRow[1].ToString(),
ValueSetName = currRow[2].ToString(),
ValueSetOid = currRow[3].ToString(),
Definition = currRow[4].ToString(),
QdmCategory = currRow[5].ToString(),
Expansion = currRow[6].ToString(),
Code = currRow[7].ToString(),
Description = currRow[8].ToString(),
CodeSystem = currRow[9].ToString(),
CodeSystemOid = currRow[10].ToString(),
CodeSystemVersion = currRow[11].ToString()
};
cdm.AddRecords<ValueSetAttribute>(valueSetAttribute, "ValueSetAttributes");
row_no++;
}
ind++;
}
}