I'm getting stuck trying to update the SourceRange of a Pivot-Table with EPPLus inside a C# class.
I've found that CacheDefinition.SourceRange contains the DataSource of my existing Pivot-Table but I don't know how to change it.
Existing Pivot-Table datasource is a range on a data worksheet in the same Excel file.
Any advice?
Thanks in advance,
Alessandro
This might work:
You can create a self-dimensioning defined name that encompasses your data range. I use this all the time.
Open Name Manager.
Click New.
Enter a Name for your range.
Put the following in the Refers to: line
OFFSET(DataSource!$A$1,0,0,COUNTA(DataSource!$A:$A),COUNTA(DataSource!$1:$1))
syntax: OFFSET(reference, rows, cols, [height], [width])
Substitute your sheet/tab name for DataSource. This assumes that the table starts in A1 (first section) and you that you want a defined name as long as the number of values in column A and as wide as the values in row 1. It is a very flexible and useful method for making sure your defined names encompass all the data on the sheet.
Related
I have the follow situation:
I need create a project in SSIS to import some datas from csv to our system but for to do this I must read some columns, and one of this columns is "group" of values.
Are values of planning horizon and this horizon can change each process, so some process can be 5 months and others 15 months.
The file (csv) will be filled with 21 columns always, but after (22, 23...) I don`t know if is 1, 2 or more columns (horizon).
And with this situation I can`t create columns in "Input and Columns" from Script Transformation Edit, I need create based on lenght of horizon.
So, my question if is possible create a column in run time, when I discovery the length of horizon.
Regards
SSIS doesn't work that way. The number of columns is set at design time.
If you can set a reasonable upper limit - say 50 columns, you can read in the last "column" of data and then parse that, via Script Component, into those fields. Otherwise, you're looking at preprocessing the file to unpivot the variable width rows into a normalized set.
You can do this in two different ways.
Add column(s) to a script component
https://msdn.microsoft.com/en-us/library/ms188192.aspx
Add a derived column transformation and add a custom column with the appropriate expression.
Tks for all answers. I changed my vision to create different.
I use script tranformation to check :
how much columns I needed create;
open a connection and delete columns of horizon;
create again columns based in new horizon;
After I included a Execute Sql Task to call a procedure that to do all logic to fill the columns.
Regards,
I have an Excel file with a named range (just one cell). There are other cells who's formulas use this name. I am trying to programatically rename the cell using EPPlus. My first attempt I simply removed the old name and added the new:
workbook.Names.Remove("OldName");
workbook.Names.Add("NewName", mySheet.Cells["B2"]);
This worked to rename the range, but the formulas still use "OldName" so they now come up with #NAME? instead of the corresponding cell's value.
If I get a reference to the name using LINQ like var nameReference = workbook.Names.First(x => x.Name == "OldName") I notice by trying to set the name property like nameReference.Name == "NewName" that it is a read-only property.
Is there a method I haven't seen for renaming these named ranges? If not, what alternatives are there to my situation? If I could get a reference to all cells who's formulas call this named range I could change each formula. I think I would need to simply scan every used cells' formulas for this reference, which I think would take a while, especially considering I actually may have dozens of Excel workbooks to scan through.
With ClosedXML I am trying to add data to an existing Excel Sheet In an Existing Table. The easy thing to do is to add a table to an excel sheet below is a quick example of how to do that. What I don't understand is if you already have a Table there that is empty how can you just add to the existing table?
// Add a DataTable as a worksheet
wb.Worksheets.Add(dataTable);
I don't know how this question isn't clear to people. If there is an existing Table (created in Excel by going to "Insert -> Table") and you open an Excel document using ClosedXML, adding data to the next row does not automatically expand the Table.
You can expand it prior to adding the data as such:
IXLTables tsTables = thisSheet.Tables;
IXLTable firstTable = tsTables.FirstOrDefault();
if (firstTable != null)
firstTable.InsertRowsBelow(1);
I had a similar requirement, where I needed to insert data into an existing Table, which had a number of data validations / comments / formula built in.
I found that the easiest solution (for me) was to use the Table's ReplaceData call. This is particularly useful if you provide a name for your Table in the Excel worksheet, as that way you can get a reference to the table directly from the workbook, ie:
var candidateTable = workbook.Table("Candidates");
candidateTable.ReplaceData(candidateData, propagateExtraColumns: true);
Note that the key to getting this to work properly is to set the propogateExtraColumns parameter - this will ensure any formula / etc you have set will automatically be copied to any new rows that are created.
FYI - you can set the Excel Table's name by selecting your table in the worksheet, clicking the Design tab, and then entering a table name:
To add a DataTable to an existing worksheet use this:
wb.Worksheet(1).Cell(1, 1).InsertTable(dataTable);
More info in the documentation.
I am making an add-in and I am trying to format the output which my add-in generates,using Format as table table-styles provided by Excel.
The one which you get on the 'home tab' --> 'Format as Table' button on the ribbon.
I am using following code:
SourceRange.Worksheet.ListObjects.Add(XlListObjectSourceType.xlSrcRange,
SourceRange, System.Type.Missing, xlYesNo, System.Type.Missing).Name =
TableName;
SourceRange.Select();
SourceRange.Worksheet.ListObjects[TableName].TableStyle = TableStyleName;
TableStyleName is any style name like TableStyleMedium17, you get it if you just hover a particular style in Excel.
My problem is that, even if I keep the SourceRange as 10 columns, all the columns right till the end get selected and are considered as one table.
Because of that the table I populate right next to it is also considered as a part of the first table that was generated.Since, both the table have same column names excel automatically changes the column names in all the following tables that are generated.
Also, because I am generating the tables in a loop after 2 tables are generated I get the error :
A table cannot overlap another table.
PS: I am clearly mentioning SourceRange as:
var startCell = (Range)worksheet.Cells[startRow, startCol];
var endCell = (Range)worksheet.Cells[endRow, endCol];
var SourceRange = worksheet.get_Range(startCell, endCell);
Kindly suggest a way out.
We were able to figure out what was happening on our end for this:
on the
xlWorkbook.Worksheets.Add([before],[after], Type.Missing, Type.Missing)
call, we had to flip before and after since we wanted the sheets to move right, not left and then accessed
xlWorkbook.Worksheets[sheetCount]
by increasing sheetcount for however many sheets were being generated.
Having it the other way was creating the worksheet to access a previously assigned table formatfrom the SourceRange.Worksheet.ListObjects[TableName].TableStyle = TableStyleName call.
So, I got around this problem a week after posting this, sorry did not update in the rush of things.
This actually is an in built excel functionality.
You cant help it, the excel application will keep doing this.
So, ultimately wrote my own table styles in c# and applied it to the excel range which is mentioned as SourceRange. Its just like writing CSS.
If you are interested in knowing the details of that comment it on this question itself or you can contact me by email from my profile.
Im using ExcelQueryFactory to retrieve the column names of a worksheet using C# 4.0.I'm able to see the list of column names but why do i get an additional set of column names like F12,F100,F20 etc . It happens with any reader i used to read my excel file.
It's not an C# issue, that is an Excel issue.
if your columns do not have column names, Excel will provide names in the format F###, where the number is the number of the column, and F is short for Field (I guess).
Now, if you have any columns in the file that at anytime contained data, or are referenced in formulas, or Excel just thinks they are important, you'll get them in the column list.
Just filter out any columns in that format, of course with the caveat that real columns with real names like F7 will get the short end of the stick there.