how to open explorer only one time by C# code

Question

i have this code for open explorer (by pressing button):

System.Diagnostics.Process.Start("IExplore.exe",@"C:\Help.html");

the problem is, if i press the button more than one time - the explorer will open a lot of shows

how to force the explorer to open only one time ?

thanks

have a look at this answer, may point you in the right direction http://stackoverflow.com/questions/187915/detecting-a-process-is-already-running-in-windows-using-c-sharp-net — Jay, Oct 16 '12 at 08:09
@MMK I was thinking that as well, but what happens if the user closes the browser and wants to re-launch from the OP's app? — Jay, Oct 16 '12 at 08:10
Why don't you disable the button just after you click on it ? — Jomy John, Oct 16 '12 at 08:10
Google it and you can find this: http://social.msdn.microsoft.com/forums/en-US/winforms/thread/745389ab-5745-477b-b698-8097e3fb33b2/ — Simon Wang, Oct 16 '12 at 08:10

score 2 · Answer 1 · answered Oct 16 '12 at 08:13

2

if (Process.GetProcessesByName("iexplore").Length == 0)
    System.Diagnostics.Process.Start("IExplore.exe", @"C:\Help.html");

answered Oct 16 '12 at 08:13

Danilo Vulović

2,983
20
31

score 1 · Answer 2 · answered Oct 16 '12 at 08:16

Disable button.
Control clicking by a flag

ie ; on_btn_clkd()
{
if(!previouslyClickd)
{
(Click functionalities)
previouslyClicked = false;
}
else
return ;

score 0 · Answer 3 · answered Oct 16 '12 at 08:13

Try to use this piece of code:

bool ProcessIsRunning(string process)
{
    return (System.Diagnostics.Process.GetProcessesByName(process).Length != 0);
}

Usage:

if (!ProcessIsRunning("IExplore.exe"))
    System.Diagnostics.Process.Start("IExplore.exe",@"C:\Help.html");

score 0 · Answer 4 · answered Oct 16 '12 at 08:19

You can do like this

private void Form1_Load(object sender, EventArgs e)
    {
        IeProcess = new Process();
        startInfo = new ProcessStartInfo("IExplore.exe");
        startInfo.WindowStyle = ProcessWindowStyle.Maximized;
    }

private void buttonStackoverflow_Click(object sender, EventArgs e)
    {
        startInfo.FileName = "www.Stackoverflow.com";
        IeProcess.StartInfo = startInfo;
        IeProcess.Start();
    }

    private void buttongoogle_Click(object sender, EventArgs e)
    {
        startInfo.FileName = "www.google.com";
        IeProcess.Start();
    }

score 0 · Answer 5 · answered Oct 16 '12 at 08:26

Make use of ShDocVw.dll..
declare in instance of Internet explorer in your class

InternetExplorer wBrowser;

and in your button click add

if (wBrowser==null)
    {
     wBrowser = new InternetExplorer();
     wBrowser.Visible = true;
     wBrowser.Navigate(@"C:\Help.html");
    }

you need to add reference to ShDocVw which you will find in System32 in your project and import namespace using SHDocVw;

score 0 · Answer 6 · answered Oct 16 '12 at 09:32

0

If sour default browser is IE just try this code:

System.Diagnostics.Process.Start(@"C:\Help.html");

answered Oct 16 '12 at 09:32

Ria

10,237
3
33
60

how to open explorer only one time by C# code

6 Answers6