May 30th, 2013, 12:55 AM
Using FolderBrowserDialog, experiencing crashing when trying to ShowDialog()
Specifically, I'm experiencing crashing if I use the ShowDialog method in a secondary form. I'm working on adding file transfer functionalities to a really basic asynchronous chat program. What I'm trying to do is, when the user receives a file transfer request, a dialogue pops up asking whether to accept or deny the transfer. Upon clicking accept, I want the user to be able to browse to a folder where that file gets saved.
Here's my code.
This is in the main form, Form1 and runs when a request for file transfer is received.
This is the code for clicking Accept. It is in Form2, the file transfer request dialogue.
private void backgroundWorker2_DoWork(object sender, DoWorkEventArgs e)
Form2 fileTransferAlert = new Form2();
string result = fileTransferAlert.ShowDialog().ToString();
if (result == DialogResult.No.ToString())
sendStatus = "dec";
fileTransferAlert.Close(); // close the connection setup form
else if (result == DialogResult.Yes.ToString())
sendStatus = "acc";
When I click accept, the program simply hangs until I click around the form, and only then will windows tell me it's stopped working.
private void acceptButton_Click(object sender, EventArgs e)
FolderBrowserDialog fd = new FolderBrowserDialog();
if (fd.ShowDialog() == DialogResult.OK)
fileReceive.receivedPath = fd.SelectedPath;
this.DialogResult = System.Windows.Forms.DialogResult.Yes;
By the way, the sticky in all caps told me to tell you all that I'm using .NET version 4.0.
May 30th, 2013, 11:48 AM
Re: Using FolderBrowserDialog, experiencing crashing when trying to ShowDialog()
You are using fd.ShowDialog() twice. Try eliminating the first one.
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