Does this appear to be correct?

I got this piece of code from, I know not where, as a recommended way to write to a file.

// better way to write to file stream
using (FileStream fs = new FileStream(fileName, FileMode.Create, FileAccess.Write))
{
StreamWriter sw = new StreamWriter(fs);
sw.Write(textBox1.Text);
sw.Close();
}

Any thoughts?

I see from your posted link that a listView does have a right.mouse.button.click. I guess that's my best solution.

Thanks I guess I will have to write a custom listBox from scratch.

Tried same code on both Vis2008 and Vis2010 Express with the same result.

Clicking on an item. Left clicking item works. Right clicking item does not.

I do not understand why the right button does not work??

namespace mouseclick
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
listBox1.MouseClick += new MouseEventHandler(listBox1_MouseClick);
listBox1.Items.Add("aaaaaaaaaaaa");
listBox1.Items.Add("aaaaaaaaaaaa");
listBox1.Items.Add("aaaaaaaaaaaa");
}

    void listBox1\_MouseClick(object sender, MouseEventArgs e)
    {
        if (e.Button == MouseButtons.Left)
        {
            MessageBox.Show("Left Button"); // Works
        }
        if (e.Button == MouseButtons.Right)
        {
            MessageBox.Show("Right Button"); // Does not work  
        }
    }  
}

}

Markovl - TNX:

This seems to be working. Any suggestions? I guess I will have to identify the OS and have an alternative for XP - right? Many thanks!

public void readRegistryForDX9()
{
RegistryKey rk = Registry.LocalMachine;
RegistryKey sk = rk.OpenSubKey("SOFTWARE\\Wow6432Node\\Microsoft\\DirectX");
string temp = (string)sk.GetValue("Version");
if (temp.IndexOf("4.09")<0) MessageBox.Show("Directx 9 Must be installed");
else MessageBox.Show("Directx 9 already installed");
return;
}

I was able to do this on XP but I can't get any code to work on Win X64 could you give me an example. TNX

In C# code how can I detect if Directx9 is installed on the user machine?

Since my list box is populated from several functions and has over 50,000 lines it would seem the simple "RemoveAt" solves the problem. But thanks for the clarification and example.

As I discovered but the listBox1.Remove is logical. Why create this special case.

Yeah! I will just add it to my list of MS idiosyncratic anomalies.

thanks for the explanation. I didn't feel I had an answer although the fix worked.

Found solution selLoc = listBox1.SelectedIndex; listBox1.Items.RemoveAt(selLoc);

//My list box contains some empty lines or lines just containing a "\t" and sometimes I want to remove one of these.
//If the selected line contains text the line is removed without problem but when the selected line is blank "", " ", or "\t"
// the removal goes to the first blank line and removes it rather than the selected line.

selLoc = ListBox1.SelectedIndex;
listBox1.Items.Remove(listBox1.SelectedItems[0]);
// Removes The first occurance of empty line (not selected)

// and this is the same
listBox1.Items.Remove(listBox1.Items[selLoc]);
// Removes The first occurance of empty line (not selected)

//How can I remove a blank selected line?</pre>

Your right. I finally found the answer to the problem. The child form was not the problem. In the parent form I had done this:

this.WindowState = System.Windows.Forms.FormWindowState.Minimized;
Form2 dlg = new Form2(fname);
dlg.ShowDialog();

For some reason this causes Form2 to be inactive I know not why.

If I click on the form all works as it should. I am writing a mediaplayer that functions from a IRremote so I dont want to have to click on the form with a mouse in order to read the key commands.

I'm afraid I still have the problem. I thought that the problem had been solved as clicking on the button caused the key commands to work. In actuality clicking the button was bringing the focus to the form. Here is the code with no button which loses focus.

public WMP(string filename)
{
InitializeComponent();
this.axWMP.KeyPressEvent += new AxWMPLib._WMPOCXEvents_KeyPressEventHandler(this.axWMP_KeyPressEvent);
fname = filename;
axWMP.settings.autoStart = false;
axWMP.URL = fname;
axWMP.Ctlcontrols.play();
axWMP.Focus();
}
// At this point if I press a key the keystroke is reported to some other window.
// If I click on this Window the keystroke will be reported here. How can I keep the
// focus on this window.

    private void axWMP\_KeyPressEvent(object sender, AxWMPLib.\_WMPOCXEvents\_KeyPressEvent e)
    {
        label1.Text = "key press = " + e.nKeyAscii.ToString(); 
    }