How to clear the content of SaveFileDialog?

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Hi.
I'm working on a windows forms app which, in one of its parts needs to make and save pdf file to desired location on my PC. I want to make 2 different files in the same app (NOT closing the app and running it again)

For example, I put the text in the textbox, the file should contain that text and after clicking the button SaveFileDialog should open and I will save this file to my PC (THIS PART IS DOING FINE). Then I erase the text from textbox and I add new text in it. If I press the button again and choose the proper location, It will save the same file as before (with the same content as before). How can I deal with this problem?

EDIT:

C#

SaveFileDialog pdfFile = new SaveFileDialog();
pdfFile.Filter = "PDF|*.pdf";
pdfFile.Title = "aaPDF";
pdfFile.FileName = "aaa";
BaseFont bf = BaseFont.CreateFont(BaseFont.HELVETICA, BaseFont.CP1250, false);
pdfFont titleFont = new pdfFont(bf, 20);
pdfFont infoFont = new pdfFont(bf, 12);
pdfFont questionsFont = new pdfFont(bf, 14);
Chunk glue = new Chunk(new VerticalPositionMark());

if (pdfFile.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
       Document document = new Document(iTextSharp.text.PageSize.A4, 40, 40, 50, 50);
       PdfWriter writer = PdfWriter.GetInstance(document, new FileStream(pdfFile.FileName, FileMode.Create));
       document.Open();

       document.NewPage();
       ParagraphPDF title = new ParagraphPDF("AAA", titleFont);
       title.Alignment = Element.ALIGN_CENTER;
       document.Add(title);
       document.Add(Chunk.NEWLINE);

       ParagraphPDF p1 = new ParagraphPDF(textFromTextbox, infoFont);                   
       document.Add(p1);              

       document.Close();
}

Posted 4-Dec-15 23:26pm

PeMaCN

Updated 4-Dec-15 23:53pm

v4

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Comments

OriginalGriff 5-Dec-15 5:36am

Show us the relevant code - without it we have no idea exactly what you are doing, so we don't know what you are doing wrong.

Richard MacCutchan 5-Dec-15 6:15am

There is obviouly an issue with you getting the text from the textbox. In the line ParagraphPDF p1 = new ParagraphPDF(textFromTextbox, infoFont);, where do you set the contents of textFromTextbox?

PeMaCN 5-Dec-15 6:37am

I'm getting the content of textbox from another method because I have a button save which saves text from textbox into a string and also button erase which erases text from textbox.

Richard MacCutchan 5-Dec-15 8:24am

Then please show us the code; we cannot guess what is happening.

Afzaal Ahmad Zeeshan 5-Dec-15 7:30am

Set it to null and restart?

2 solutions

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BillWoodruff · Answer 1 · 2015-12-05T02:02:00

Put break-points in your code: when you hit the break-points single-step through your code and examine the values of the variables. Use F11 to single-step in Visual Studio.

Either you are over-writing the file, or you are not accessing the changed content in the TextBox. This should be simple to figure out.

C#

if (pdfFile.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
// put a break-point here: single-step forward
       Document document = new Document(iTextSharp.text.PageSize.A4, 40, 40, 50, 50);
       PdfWriter writer = PdfWriter.GetInstance(document, new FileStream(pdfFile.FileName, FileMode.Create));
       document.Open();
 
       document.NewPage();
       ParagraphPDF title = new ParagraphPDF("AAA", titleFont);
       title.Alignment = Element.ALIGN_CENTER;
       document.Add(title);
       document.Add(Chunk.NEWLINE);
 
       ParagraphPDF p1 = new ParagraphPDF(textFromTextbox, infoFont);
// put a break-point here: single-step forward                   
       document.Add(p1);              
// put a break-point here: single-step forward 
       document.Close();
}

Also, put a break-point just after this code returns.

Sergey Alexandrovich Kryukov · Answer 2 · 2015-12-04T23:45:00

Solution 1

You can modify the property of SaveFileDialog.FileName.

—SA

Posted 4-Dec-15 23:45pm

Sergey Alexandrovich Kryukov

Updated 4-Dec-15 23:51pm

v2

Comments

PeMaCN 5-Dec-15 5:47am

Can you please explain this 'questionable'?

Sergey Alexandrovich Kryukov 5-Dec-15 5:50am

Ah, sorry, I probably misread it. I thought that you need to save two files each time, but probably it's just your concern that the file name is not reset.
—SA

PeMaCN 5-Dec-15 5:56am

I tried this: pdfFile.FileName = "" and pdfFile.RestoreDirectory = true but none of this worked

Sergey Alexandrovich Kryukov 5-Dec-15 6:00am

I cannot believe that. What happens if you use pdfFile.FileNames = string.Empty; ?
(Using "" is not a bug, but using string.Empty is better for maintainability of code.)

Also, SaveFileDialog has the option for "file already exist" warning.

—SA

PeMaCN 5-Dec-15 6:17am

I also tried Reset() but this didn't worked either.

Sergey Alexandrovich Kryukov 5-Dec-15 18:52pm

Do you create pdfFile instance only once in the application lifetime?
—SA