CODEWITHSUNDEEP
c#asp.net
VishwajeetMCA
VishwajeetMCA

Reputation: 147

Multiple STA (Single Thread Apartment ) is not working in asp.net web application

I have created a simple asp.net web application. It has two buttons one for browsing folder (selectFolderbtn) & another for browsing file (selectFilebtn) . And the click event for both the buttons are as below:-

protected void selectFolderbtn_Click(object sender, EventArgs e)
 {
     Thread thdSyncRead = new Thread(new ThreadStart(openfolder));
     thdSyncRead.SetApartmentState(ApartmentState.STA);
     thdSyncRead.Start();
 }

 public void openfolder()
 {

     FolderBrowserDialog fbd = new FolderBrowserDialog();
     DialogResult result = fbd.ShowDialog();

     string selectedfolder = fbd.SelectedPath;
     txt_extDestLoc.Text = selectedfolder;


 }


protected void selectFilebtn_Click(object sender, EventArgs e)
 {
     Thread thdSyncReadNew = new Thread(new ThreadStart(selectfile));
     thdSyncReadNew.SetApartmentState(ApartmentState.STA);
     thdSyncReadNew.Start();



 }

public void selectfile()
 {

     OpenFileDialog fileD = new OpenFileDialog(); //create object
     fileD.Filter = "Iso files|*.iso;"; //define filter
     fileD.ShowDialog(); //show dialog
     string globalisopath = fileD.FileName;

 }

The issue I am facing is, among the above two button click event only one event works at a time & not both the event. I want both the click event to work, one should select a folder & another should select a file. But its not working the way I want.

Why this is happening. Please suggest me its solution or any other alternatives.

Upvotes: 1

Views: 349

Answers (1)

Luaan
Luaan

Reputation: 63742

You're solving the wrong issue.

There is no legitimate reason to use any windows dialog in a web application. It will only ever show the dialog on the server (and most likely, not even that). You need to handle this on your own - either you want the user to upload some files, and there's controls for that, or you want him to select a file / folder already existing on the server - and that's completely different.

You cannot use any windows controls in a web application at all. You need to use web controls, or write your own HTML+JavaScript etc.

Upvotes: 1

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