Currently I am trying to set databar color to red using Interop Excel in C# when export to xlsx file but I don't know the correct way of accessing the properties (E.g. bar color, direction) listed in the microsoft docs as there are no examples. Does anyone know how? Below is my code.
Excel.Range range1 = excelWorkSheet.Range["H4", "V4"];
range1.FormatConditions.AddDatabar();
Related
As per Current requirement I need to read value from the cell using EPPlus. This cell contains the formula and showing value correctly in XL Sheet. but when i am reading that value using EPPlus some cells are giving correct value but some cells are giving error "#VALUE!". I have used ".Calculate()" before read the value but still facing the same problem. Please find the code below in c#.
totalRecycleWorksheet.Cells[row, colval + 5].Style.Numberformat.Format = "#";
totalRecycleWorksheet.Cells[row, colval + 5].Calculate();
var value = totalRecycleWorksheet.Cells[row, colval + 5].Value;
if (!totalRecycleWorksheet.Cells[row, colval + 5].Value.ToString().Equals("#VALUE!")) {}
and here is the formula in every cells:
=IF(('Failure Item'!E348+ROUNDUP(('Output'!E348)*$B$1,0)-'Purchased Items'!F348)>0,('Failure Item'!E348+ROUNDUP(('Output'!E348)*$B$1,0)-'Purchased Items'!F348),0)
and values are as per the screenshot:
Also you can check the Output I have stored in datatable to check the value:
The only examples I see call Calculate at the workbook level such as
excelPackage.Workbook.Calculate();
I had a similar problem. In my case the Excel workbook was a macro-enabled (.xlsm) file. It was macro enabled because I had made use of VBA functions.
When reading Excel.Range.Value2 property from cells the numerical result was consistently -2146826273. I searched this error code as the Hex (800A 07DF) with no luck, but eventually used a bit of debugging to find it resulted from Excel outputting #VALUE! in the cell I was trying to read.
This was because the macros weren't enabled when I'd loaded it via C#, so calls to the VBA functions were failing.
I followed the advice in: Programmatically enable Excel macro in C#
to enable macros on the workbook and all my #VALUE! problems disappeared.
I hope someone can help me. Is there a way to embed a specific file (.txt) into an excel cell? I'm currently using epplus, and I would like to embed programmatically a file into a specific excel cell. I did manage to add a hyperlink, but my goal is to have it embedded.
Worksheet.Cells[rowNumber, colNumber].Value = ....
Is there any way to do it? I couldn't find anything online.
As mentioned in the comments, you can certainly put text within a cell, but bear in mind Excel does have a limit to the number of characters it will allow in a single cell. It's pretty large, but conceivably the contents of a text file could exceed that limit -- even if future versions of Excel keep increasing what the limit is (as they have in the past).
You can also embed an OLE object in your worksheet, and a text file qualifies for that. I don't know that you can assign it to a cell, per se. You can change the location, shape and behavior to fit in a cell and behave as though it's part of a cell, but I don't know that it ever belongs to a range the way formulas do. I could be wrong.
The basic construct of how to embed an OLE object into a worksheet is as follows:
Excel.OLEObject ole = ws.OLEObjects().Add(Filename: #"C:\Users\hambone\Documents\foo.txt");
This is the equivalent of the VBA:
Set ole = sh.OLEObjects.Add(Filename:="C:\Users\hambone\Documents\foo.txt")
The method returns an OLEObject object, which you can then shape to behave the way you want:
ole.Height = 5;
How can I set the Gap Width value on a column/bar chart in EPPlus?
I have not found a built-in property for this and am expecting I will need to manipulate the chart's Xml, but I've been unable to find the Office Open Xml syntax for doing this.
This is supported in EPPLus.
For example:
var barChart = chart.PlotArea.ChartTypes[0] as ExcelBarChart;
barChart.GapWidth = 0;
I found the answer by creating what I wanted in a standard Excel sheet, and then looking at the underlying XML it had crated.
I set the Gap Width on an existing chart using the Excel, saved the workbook, renamed the file extension to .zip, and found the corresponding chart XML file within the Zip.
In this case I found the element <c:gapWidth val="15" /> at the following location in the chart's XML: c:chartSpace/c:chart/c:plotArea/c:barChart
I highly recommend this method for solving similar OOXML syntax queries, as the documentation I've seen so far is very dense and not easy to navigate, whereas learning by example in this way helped me find the answer in seconds.
I found some code which uses Style property of Microsoft.Office.Interop.Excel.Worksheet.Cells[x,y] but it is treated as an object in my Visual Studo code editor:
Workbook wb = new Application.Workbooks.Add(XlWBATemplate.xlWBATWorksheet);
Worksheet ws = wb.Sheets[1];
ws.Cells[x,y] is simply treated as an object so how can I use its Style property?
I'm using Microsoft Excel 15.0 Objects Library (goes with Microsoft Office 2013). Does that matter?
Could you please explain this to me? Thank you.
you have to cast the object as a Range.
The Range interface/object contains all the style and value information for the cell or range that you are specifying.
some examples:
((Excel.Range)ws.Cells[r, c]).NumberFormat = format;
((Excel.Range)ws.Cells[r, c]).Value2 = cellVal;
((Excel.Range)ws.Cells[r, c]).Interior.Color = ColorTranslator.ToOle(Color.Red);
((Excel.Range)ws.Cells[r, c]).Style.Name = "Normal"
etc etc and so on.
Have a link:
https://learn.microsoft.com/en-us/office/vba/api/Excel.Range.Style
You might also like to check out stackoverflow.com/questions/15366340/ which includes cell formatting while exporting to excel.
I'm using late binding to launch Excel from C# and copy data into it (Type.GetTypeFromProgID("Excel.Application"), Activator.CreateInstance, InvokeMember, and all that). I have this working fine, but I can't figure out how to set the cell format, specifically to make a cell bold. anyone have any idea how to do this?
I'm not sure how to do it late binding, but if you created an Excel helper class, this is probably the easiest way do what you want (I also added in color and number formating):
using System;
using Excel = Microsoft.Office.Interop.Excel;
public class MyClass
{
public void FormatRange(Excel.Worksheet sheet)
{
Excel.Range range = sheet.Cells["1","A"];
range.Interior.ColorIndex = 15;//This sets it to gray
range.Font.Bold = true;//Sets the Bold
range.NumberFormat = "#";//Sets it to numeric
}
}
Cheers!
SpreadsheetGear for .NET will let you read, modify and write Excel workbooks without relying on Excel being installed. If you are calling very many APIs, it will also run much faster than using Excel via COM Interop. Here is an example which loads a workbook, sets a cell's font to bold and saves the workbook:
SpreadsheetGear.IWorkbook workbook = SpreadsheetGear.Factory.GetWorkbook(#"C:\tmp\MyWorkbook.xlsx");
workbook.Worksheets["Sheet1"].Cells["A1"].Font.Bold = true;
workbook.Save();
You can see a number of live samples here and download the free trial here.
Disclaimer: I own SpreadsheetGear LLC