C# Winform Open PDF file in acrobat reader without open/save dialog box

Question

_{Thursday, April 18, 2019 2:48 PM}

How do I open a PDF file without the Open file dialog box showing up? I have a Winform and using AcroPDFLib and AxAcroPDFLib as reference. The PDF file is is the Bin folder I cant figure out how to disable the box and use relative path.

 private void button1_Click(object sender, EventArgs e)
        {
            
            {

                OpenFileDialog dlg = new OpenFileDialog();
                // set file filter of dialog 
                dlg.Filter = "pdf files (*.pdf) |*.pdf;";
                dlg.ShowDialog();
                if (dlg.FileName != null)
                {
                    // use the LoadFile(ByVal fileName As String) function for open the pdf in control
                    axAcroPDF1.LoadFile(dlg.FileName);
                }

            }

        }
    }
}

Booney440

All replies (8)

_{Thursday, April 18, 2019 8:57 PM ✅Answered}

Sorry, that is a typo. Make the `filename` local variable and the variable passed to `LoadFile` use the same case. C# is case sensitive.

Michael Taylor http://www.michaeltaylorp3.net

_{Thursday, April 18, 2019 5:27 PM}

Pass the name of the file you want to open as a parameter to LoadFile instead of using dlg.FileName.

var filename = "MyPdf.pdf";
axAcroPDF1.LoadFile(filename);

Michael Taylor http://www.michaeltaylorp3.net

_{Thursday, April 18, 2019 6:07 PM}

if i add a form load how do i tie the button click into it or just have it load automatically?

Booney440

_{Thursday, April 18, 2019 6:19 PM}

Not really sure what you're asking here. Is this a new question? What does form load and a button click have to do with the opening of a PDF? Are you trying to run the code you posted initially in a form load call? If so then move the logic into a private method and have your button click and/or form load handler call the method.

Michael Taylor http://www.michaeltaylorp3.net

_{Thursday, April 18, 2019 6:36 PM}

Same question I dont understand how to add your suggestion to keep the dialog box from opening I just want the file to load on button click.

Booney440

_{Thursday, April 18, 2019 6:42 PM}

private void button1_Click(object sender, EventArgs e)
{
    var filename = "MyPdf.pdf";

    axAcroPDF1.LoadFile(fileName);
}

Loads MyPdf.pdf when the button is clicked. Is that what you want?

Michael Taylor http://www.michaeltaylorp3.net

_{Thursday, April 18, 2019 8:53 PM}

filename assigned but its value never used. 

Booney440

_{Thursday, April 18, 2019 9:31 PM}

Thanks that did the trick.

Booney440