Simple problem with a SaveFileDialog


O

Oriane

Hi there,

I use this very simple code:
__________________________________________________________________________
private void OnExport (object sender, EventArgs e) {
// SaveFileDialog saveFileDialog1 is a member
DialogResult result = saveFileDialog1.ShowDialog ();
if ( result == DialogResult.OK)
{
XmlTextWriter xtw = new
XmlTextWriter(saveFileDialog1.FileName, Encoding.UTF8);
xtw.WriteStartDocument(true);
xtw.WriteStartElement("File");
string role;
// ProgressBar progressBar1 is a member
progressBar1.Show();
progressBar1.Focus();
....}

and my problem is that when the treatment with the XmlTextWriter begins and
that the progress bar appears, my SaveFileDialog is not closed, but still
appears on my app.

I can't figure out why.

Best regards
 
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A

Armin Zingler

Oriane said:
Hi there,

I use this very simple code:
__________________________________________________________________________
private void OnExport (object sender, EventArgs e) {
// SaveFileDialog saveFileDialog1 is a member
DialogResult result = saveFileDialog1.ShowDialog ();
if ( result == DialogResult.OK)
{
XmlTextWriter xtw = new
XmlTextWriter(saveFileDialog1.FileName, Encoding.UTF8);
xtw.WriteStartDocument(true);
xtw.WriteStartElement("File");
string role;
// ProgressBar progressBar1 is a member
progressBar1.Show();
progressBar1.Focus();
...}

and my problem is that when the treatment with the XmlTextWriter
begins and that the progress bar appears, my SaveFileDialog is not
closed, but still appears on my app.

I can't figure out why.

Best regards

Consider putting the export into another thread, so your UI thread will be
able to update the screen.


Armin
 
L

Linda Liu[MSFT]

Hi Oriane,

I performed a test based on your sample code but didn't reproduce the
problem on my side.

When we call SaveFileDialog.ShowDialog method, the SaveFileDialog is shown
modally and this method doesn't return until the SaveFileDialog is closed.
That's to say, it's AFTER the SaveFileDialog is closed that the
XmlTextWriter begins to write text into the specified file.

Even though the XmlTextWriter will take a long time to write text into the
file, it won't block the SaveFileDialog.

Since I couldn't reproduce the problem on my side, could you please send me
a simple project that could reproduce the problem? My email address is
(e-mail address removed).

I look forward to your reply!

Sincerely,
Linda Liu
Microsoft Online Community Support

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O

Oriane

Hi Linda,
Linda Liu said:
Hi Oriane,

I performed a test based on your sample code but didn't reproduce the
problem on my side.

When we call SaveFileDialog.ShowDialog method, the SaveFileDialog is shown
modally and this method doesn't return until the SaveFileDialog is closed.
That's to say, it's AFTER the SaveFileDialog is closed that the
XmlTextWriter begins to write text into the specified file.
Yes this is the way it should work...
Even though the XmlTextWriter will take a long time to write text into the
file, it won't block the SaveFileDialog.

Since I couldn't reproduce the problem on my side, could you please send
me
a simple project that could reproduce the problem? My email address is
(e-mail address removed).
Since this is a minor problem, and since I would have to modify my code to
send it to you, I thank you but there is no need to continue this topic.
Alternatively, I can follow Armin suggestion and use a background worker
thread.

Best regards
 
O

Oriane

Hi Armin,
Armin Zingler said:
Consider putting the export into another thread, so your UI thread will be
able to update the screen. Yes I will try...

Armin
Thanks a lot
 
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L

Linda Liu[MSFT]

Hi Oriane,

Thank you for your response!

Well, I will close this issue. If you need our further assistance, please
feel free to re-open this issue and I will continue to work with you.

Have a nice day.

Sincerely,
Linda Liu
Microsoft Online Community Support
 
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