Getting File path from a open file dialog

Question

I want to make a button that

opens a file from some location in file system,
gets its file path,
pass the file path like an argument to a method
open that file and do something with it.

I've made a button like this:

private void button1_Click(object sender, RoutedEventArgs e)
        {
            OpenFileDialog fDialog = new OpenFileDialog();

            fDialog.Title = "Open XML file";
            fDialog.Filter = "XML files|*.config";
            fDialog.InitialDirectory = @"C:\";
            fDialog.ShowDialog();
        }

I already made a method that reads from hard-coded location, but can someone help me about that file path part variable?

Method reads file with XmlTextReader like this:

private void ReadAdvancedConfigFile()
        {
            XElement root = null;
            root = XElement.Load(new XmlTextReader(@"C:\Users\nemanja.mosorinski\Downloads\__Research-master\__Research-master\SEDMSVSPackage\VisualStudioPackage\AppRes\ConfigFiles\Unity.config"));
        }

So basically I want to put new file path for some file founded by OpenFileDialog in root variable.

Why do you initialize the variable to null?

David Heffernan
– David Heffernan

2014-02-04 08:43:42 +00:00
Commented Feb 4, 2014 at 8:43 — David Heffernan
– David Heffernan, Commented Feb 4, 2014 at 8:43

Selman Genç · Accepted Answer · 2014-02-04 09:06:15Z

2

Change this line:

fDialog.ShowDialog();

To:

bool? control = fDialog.ShowDialog();
if(control.Value)
{
   var filePath = fDialog.FileName;
   ReadAdvancedConfigFile(filePath)
}

Also you should change the method signature

private void ReadAdvancedConfigFile(string path)

edited Feb 4, 2014 at 9:06

answered Feb 4, 2014 at 8:40

Selman Genç

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8 Comments

nemo_87 Over a year ago

I got an error for DialogResult.OK. It says that 'System.Nullable<null>' does not contain a definition for 'OK'.

Selman Genç Over a year ago

@nemo_87 use this: System.Windows.Forms.DialogResult.OK

nemo_87 Over a year ago

Now it says: Error 1 Operator '==' cannot be applied to operands of type 'bool?' and 'System.Windows.Forms.DialogResult'

Selman Genç Over a year ago

You didn't add OK System.Windows.Forms.DialogResult.OK

David Heffernan Over a year ago

@nemo_87 You have to actually read the error messages and try to understand them. Don't just give up as soon as you see an error. The errors all have meaning and they all explain what the problem is.

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