What is the easiest way to get the width of a string based on font metrics?

When i tried to:
pictureBox.Size.Width = 100;
i receive:
DscFile.cs(58): Cannot modify the return value of  

Hey all,
    I am looking for a way to have a textbox autovalidate once the number
of characters entered is == MaxLength. As it is now you have to hit tab
to go to the next control.

Please consider this code:
XmlTextReader reader = new XmlTextReader("FileList.xml");
ListViewItem lvi = new ListViewItem();
    try

I have a treeView with nested Items, I need to set for each node in tree a
specific data like following
Root---
      ---Node1  (here i need to attach url for each item so when user click

foreach (ListViewItem item in listViewFiles.Items)
    {
    MessageBox.Show(item.SubItems[0].Text + ", " + item.SubItems[1].Text);
    string source=item.SubItems[0].Text;

This is for a Win form.
SP sends back the PostMark date to my datagrid, shows proper date in
datagrid.  When user clicks on datagrid, the code sends the current row to
text box. The text box shows the date and 12:00:00 AM.  How do I get rid of

    The need is to read each line in a text file and based on the  read
data decision has to be taken whether to reposition the file pointer. The
StreamReader.Position does not give current position. But it gives position
in multiples of 1024. Also, I am not finding a way to ...

I have TabControl and some TabPages in it. How can i make active these  
pages ?
(i have button on Page1 and after pressing that button i want to see  
Page2).

This may be easier than I think, but I need to find a quick way to
change a datetime object to string, as the following
mydateobject = mydateobject.ToString();
renders the error:  Cannot implicitly convert type 'string' to

Not just in outlook (express) VBA, best using C# or other .NET languages.

Thanks.

How can i read how long is song (in mp3 file) ?
I use id3lib but as far as i see it can not be read from tags... ( or it  
can ??)
Thanx

Hi, I took the ListView control from the toolbox, put it on the form,
and when I tried to compile this (from my constructor):
listViewFiles.Columns.Add("Source",-1,HorizontalAlignment.Left);
I get an object reference not set error.  The control on the form has

I need to create some objects durring program execution - but it's names  
are dynamically generated (depends on parameters). How can i do it ?
Thanx
Michal