C#

Craigpt wrote:

i can't find a way to check whether or not this page is a popup (window.opener != null) or not (window.opener == null) using server side code.

Guffa wrote:

The browser doesn't tell the server where the page will be displayed, so the server simply doesn't know.

<code>private void dgv_CellValidating(object sender, DataGridViewCellValidatingEventArgs e)
        {
            DataGridView dgv = sender as DataGridView;

            if (dgv.IsCurrentCellInEditMode)
            {
                 dgv.Rows[e.RowIndex].ErrorText = "You made an error";
            }
        }

<br />
private void dataGridView_CellValidating(object sender, DataGridViewCellValidatingEventArgs e)<br />
{<br />
    DataGridView dgv = sender as DataGridView;<br />
    if (dgv.IsCurrentCellInEditMode)<br />
    {<br />
        dgv.Rows[e.RowIndex].Cells[0].ErrorText = "You made an error!";                <br />
    }<br />
} <br />

TheTinSoldier wrote:

if an object doesn't implement IDisposable is there any point in using Using?

public static bool IsPortInUse(string portName) {
    try {
        SerialPort sp = null;
        try {
            sp = new SerialPort(portName);
            sp.Open();
            return false;
        } catch (Exception ex) {
            throw ex;
        } finally {
            if (sp != null) {
                sp.Dispose();
            }
        }
    } catch (UnauthorizedAccessException e) {
        return true;
    }
}

BoneSoft wrote:

It does not also call Close(), only Dispose().

public class SerialPort : Component
{
    public void Close()
    {
        this.Dispose(true);
    }
    protected override void Dispose(bool disposing)
    {
        if (disposing && this.IsOpen)
        {
            this.internalSerialStream.Flush();
            this.internalSerialStream.Close();
            this.internalSerialStream = null;
        }
        base.Dispose(disposing);
    }
}