I am trying to use "File Size" (aka "FileSizeDisplay") in a Calculated column formula.
"File Size" is an existing column (default SP not custom).
But is not available in the "Insert Column" list of any library.
And SP displays an error message that states it does not exist if it is added to a formula manually as either [File Size] or [FileSizeDisplay].
All I want to do is inform a user that an image is too big. Not trying to prohibit file size upload or anything technical like that. Just want a Calculated column to display a message.
If the column value was available the following would work:
=IF([File Size]>50000,"Image is too big","Image is sized correctly")
or
=IF([FileSizeDisplay]>50000,"Image is too big","Image is sized correctly")
Any one know why this column is not available?
Cheers
You'll want to get the file size first: get file size then you can display of message in a pop up or how ever you'd like
using System;
using System.IO;
class Program
{
static void Main()
{
// The name of the file
const string fileName = "test.txt";
// Create new FileInfo object and get the Length.
FileInfo f = new FileInfo(fileName);
long s1 = f.Length;
// Change something with the file. Just for demo.
File.AppendAllText(fileName, " More characters.");
// Create another FileInfo object and get the Length.
FileInfo f2 = new FileInfo(fileName);
long s2 = f2.Length;
// Print out the length of the file before and after.
Console.WriteLine("Before and after: " + s1.ToString() +
" " + s2.ToString());
// Get the difference between the two sizes.
long change = s2 - s1;
Console.WriteLine("Size increase: " + change.ToString());
}
}
Related
The project I am currently working on is to export an Excel file to PDF.
The Excel file is a "Template" that allows the generation of graphs. The goal is to fill some cells of the Excel file so that the graphs are generated and then to export the file in PDF.
I use Qt in C++ with the QAxObject class and all the data writing process works well but it's the PDF export part that doesn't.
The problem is that the generated PDF file also contains the data of the graphs while these data are not included in the print area of the Excel template.
The PDF export is done with the "ExportAsFixedFormat" function which has as a parameter the possibility to ignore the print area that is "IgnorePrintAreas" at position 5. Even if I decide to set this parameter to "false", so not to ignore the print area and therefore to take into account the print area, this does not solve the problem and it produces the same result as if this parameter was set to "true".
I tried to vary the other parameters, to change the type of data passed in parameter or not to use any parameter but it does not change anything to the obtained result which is always the same.
Here is the link to the "documentation" of the export command "ExportAsFixedFormat":
https://learn.microsoft.com/en-us/office/vba/api/excel.workbook.exportasfixedformat
I give you a simplified version of the command suite that is executed in the code:
Rapport::Rapport(QObject *parent) : QObject(parent)
{
//Create the template from excel file
QString pathTemplate = "/ReportTemplate_FR.xlsx"
QString pathReporter = "/Report"
this->path = QDir(QDir::currentPath() + pathReporter + pathTemplate);
QString pathAbsolute(this->path.absolutePath().replace("/", "\\\\"));
//Create the output pdf file path
fileName = QString("_" + QDateTime::currentDateTime().toString("yyyyMMdd-HHmmssff") + "_Report");
QString pathDocument = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation).append("/").replace("/", "\\\\");
QString exportName(pathDocument + fileName + ".pdf");
//Create the QAxObjet that is linked to the excel template
this->excel = new QAxObject("Excel.Application");
//Create the QAxObject « sheet » who can accepte measure data
QAxObject* workbooks = this->excel->querySubObject("Workbooks");
QAxObject* workbook = workbooks->querySubObject("Add(const QString&)", pathAbsolute);
QAxObject* sheets = workbook->querySubObject("Worksheets");
QAxObject* sheet = sheets->querySubObject("Item(int)", 3);
//Get some data measure to a list of Inner class Measurement
QList<Measurement*> actuMeasure = this->getSomeMeasure() ; //no need to know how it’s work…
//Create a 2 dimentional QVector to be able to place data on the table where we want (specific index)
QVector<QVector<QVariant>> vCells(actuMeasure.size());
for(int i = 0; i < vCells.size(); i++)
vCells[i].resize(6);
//Fill the 2 dimentional QVector with data measure
int row = 0;
foreach(Measurement* m, actuMeasure)
{
vCells[row][0] = QVariant(m->x);
vCells[row][1] = QVariant(m->y1);
vCells[row][2] = QVariant(m->y2);
vCells[row][3] = QVariant(m->y3);
vCells[row][4] = QVariant(m->y4);
vCells[row][5] = QVariant(m->y5);
row++;
}
//Transform the 2 dimentional QVector on a QVariant object
QVector<QVariant> vvars;
QVariant var;
for(int i = 0; i < actuMeasure.size(); i++)
vvars.append(QVariant(vCells[i].toList()));
var = QVariant(vvars.toList());
//Set the QVariant object that is the data measure on the excel file
sheet->querySubObject("Range(QString)", "M2:AB501")->setProperty("Value", var);
//Set the fileName on the page setup (not relevant for this example)
sheet->querySubObject("PageSetup")->setProperty("LeftFooter", QVariant(fileName));
//Export to PDF file with options – NOT WORKING !!!
workbook->dynamicCall("ExportAsFixedFormat(const QVariant&, const QVariant&, const QVariant&, const QVariant&, const QVariant&)", QVariant(0), QVariant(exportName), QVariant(0), QVariant(false), QVariant(false));
//Close
workbooks->dynamicCall("Close()");
this->excel->dynamicCall("Quit()");
}
A this point I really need help to find a way to solve this problem.
I also wonder if this is not a bug of the QAxObject class.
I finally found a solution on another forum.
If anyone needs help, I'll leave the link to the answer.
I need to create a package which splits the huge flat file into multiple flat files.
I have flat file which has 20 million rows and now I need to split this flat file (Each flat file needs to have 55 k rows)
Example:- if there are 111 rows in total, I would have to create 3 files.
file1.txt will have 1-55 rows
file2.txt will have 55-110 rows
file3.txt will have 1 rows
.
What options do I have?
I am using Visual Studio 2012 for this project.
you could try something like this... its pretty rudimentary and I am sure that someone will point out that it is not going to be the most efficient thing but its a solid option. Note that you will need to add some try catch error handling.
int recper = 0; // this is where you will assign the number of records per file
int reccount = 0;
int filecount = 1;
string filename = "testfilename";
string networkDirectory = #"c:\fakepath\";
string fileToRead = #"c:\fakepath\textfile.txt";
using (StreamReader reader = new StreamReader(fileToRead,Encoding.Default,true))
{
while (reader.Peek() > 0)
{
using (StreamWriter writer = new StreamWriter(Path.Combine(networkDirectory, filename + filecount + ".txt"), true, Encoding.Default))
{
writer.Write(reader.ReadLine());
}
reccount++;
// checks on each iteration of the while loop to see if the
// current record count matches the number of records per file
// if sso reset reccount and change increment filecount to change the file name
if (reccount == recper)
{
reccount = 0;
filecount++;
}
}
}
Another way you can do this is in a dataflow:
First use your method of choice to add a "Row Number" column to your data flow (unless there is already one in your flat file output, in which case skip this step and use that):
https://www.google.com/search?sourceid=navclient&aq=&oq=add+rownumber+column+to+ssis+dataflow&ie=UTF-8&rlz=1T4GGNI_enUS551US551&q=add+rownumber+column+to+ssis+dataflow&gs_l=hp....0.0.0.6218...........0._Qm62-0x_YQ
Then add a MultiCast transformation to your dataflow, and use the row number to split the stream and send it to different destinations:
Row 1 - 55k, -> File1
Row 55001 - 110k -> File2
etc.
I've got this code to apply a "header" (big, top-of-the-sheet "title") to a sheet:
// Initialize
private static SLDocument sl;
. . .
sl = new SLDocument();
// Create a Style
SLStyle styleHeading = sl.CreateStyle();
styleHeading.SetFont(FontSchemeValues.Major, 36);
styleHeading.Font.Italic = true;
styleHeading.Font.FontName = "Candara";
// Create a Defined Name (Range) and give it a value and style
sl.SetDefinedName("UnitName", "Sheet1!$A$1:$A$13");
sl.SetCellValue("UnitName", "Pennsylvania Platypi Presumptuously Parasailing");
sl.SetCellStyle("UnitName", styleHeading);
// Save the sheet
string appDataFolder = HttpContext.Current.Server.MapPath("~/App_Data/");
string spreadsheetLightFilename = "PlatypiTest.xlsx";
string fullspreadsheetLightPath = Path.Combine(appDataFolder, spreadsheetLightFilename);
sl.SaveAs(fullspreadsheetLightPath);
Note: I verified that "Sheet1" was right with this code:
var nameList = sl.GetSheetNames();
string s = nameList[0]; // "s" is "Sheet1"
The file is created and saved, but it is devoid of content; when I open it, cell A1 is highlighted, but is content-free.
Am I missing a vital step, or going about this completely wrong?
What are you doing is logically fine.
This line
sl.SetDefinedName("UnitName", "Sheet1!$A$1:$A$13");
indeed creates a named range. You can see it if you open the resulting file in Excel and look at the cell selector:
or the Name Manager:
The problem is though that Spreadsheet Light has a very basic support for Defined names - basically all you can do is to create a name and use it inside the formulas. All methods that manipulate content expect single cell reference. Btw, all these methods do not throw exception if you don't pass a valid cell reference, but return bool indicating success/failure.
For instance, if you change your code to
bool success1 = sl.SetCellValue("UnitName", "Pennsylvania Platypi Presumptuously Parasailing");
bool success2 = sl.SetCellStyle("UnitName", styleHeading);
you will see that both success variables are false.
Shortly, if you want to bring some content to the Excel file, you should do it cell by cell. It even does not support regular (unnamed) ranges.
Theoretically, at least, you could do it this way:
// from http://stackoverflow.com/questions/36481802/what-is-the-analogue-to-excel-interops-worksheet-usedrange-rows-in-spreadsheet
var stats = sl.GetWorksheetStatistics();
var rowcount = stats.NumberOfRows;
SLStyle entireSheetRangeStyle = sl.CreateStyle();
entireSheetRangeStyle.// (set style vals)
. . .
sl.SetRowStyle(1, rowcount, entireSheetRangeStyle);
This is an uploading tool. I am trying to rename a file name if it is existed in the folder already.
The plan is to add a number after the file name. For example, if the file name is Hello.doc, it will be saved as Hello2.doc.
The problem is, the file name & file type are always different. It can be Goodbye.pdf/capture.png. I am not sure how to insert the number in the correct place.
if (System.IO.File.Exists(savepath))
{
int counter = 2;
while (System.IO.File.Exists(savepath))
{
string newFileName = fileName + counter;
tempFileName = newFileName.Insert/replace //Not sure what to do here
savepath += tempFileName;
counter++;
}
FileUpload.SaveAs(savepath);
lblUpload.Text = "A file with the same name already exists." + " Your file was saved as " + tempFileName;
}
Does someone know? Thanks!
Please let me know if this is what you were looking for. Used StringBuilder to avoid creating new String objects after every concatenation.
String[] filepath = filename.split(".");
// filepath[0] -> filename
// filepath[1] -> extension
StringBuilder newFilename = new StringBuilder(filepath[0]);
// add number
newFilename.append(2);
// add period
newFilename.append(".");
// add extension
newFilename.append(filepath[1]);
return newFilename.toString();
I am want to read excel file having phone numbers stored as numbers but when I read the file using SheetJS/js-xlsx (npm install xlsx), All the large phone numbers are converted to strings like
9.19972E+11
919971692474 --> 9.19972E+11
My code is
var workbook = XLSX.readFile(req.files.fileName.path);
var sheet_name_list = workbook.SheetNames;
var csvFile = XLSX.utils.sheet_to_csv(workbook.Sheets[sheet_name_list[0]]);
console.log(csvFile2);
console output is
customer_phone,product_name
9.19972E+13,"Red Belly Shoes,"
Is there any way I can avoid such conversion?
The number 919971692474 is normally displayed as 9.19972E+11 in Excel. To force it to display the full number you have to set the number format to 0 (right click, format cell, choose custom type '0'). And when you do that, the full number is displayed. If you don't set a format in excel, the xlsx module uses the "General" format and that number format displays the phone number as an exponential.
If the file is incorrect, you can override the CSV formatting by deleting the w key and adding a z key corresponding to the desired number format. For example, to change cell A2:
var sheet = workbook.Sheets[workbook.SheetNames[0]];
delete sheet.A2.w;
sheet.A2.z = '0';
If you want to do this for all number cells, just loop:
Object.keys(sheet).forEach(function(s) {
if(sheet[s].w) {
delete sheet[s].w;
sheet[s].z = '0';
}
});
By default sheet_to_csv take the formatted numbers.
- To avoid the formatted value and to take raw inputs (original values) you have to add parameter in sheet_to_csv method you have to set rawNumbers to true
Try this code
var csvFile = XLSX.utils.sheet_to_csv(workbook.Sheets[sheet_name_list[0]], { rawNumbers: true });
It seems in later versions w is not there. That's how it could be done in recent versions.
const ws = XLSX.utils.json_to_sheet(data);
Object.keys(ws).forEach(function(s) {
if(ws[s].t === 'n') {
ws[s].z = '0';
ws[s].t = 's';
}
});
const csv = XLSX.utils.sheet_to_csv(ws);
Using sheet[s].z = '0'; works in removing the scientific notation, but it also removes any decimal places you might want to retain. From the readme:
The cell.w formatted text for each cell is produced from cell.v and cell.z format.
I was able to remove the scientific notation by explicitly setting the value of w instead of letting xlsx calculate it for me:
if (cell.t === 'n') {
cell.w = cell.v;
}