C#

ajay 2010 wrote:

i tried it n got the solution.

Zaegra wrote:

string newline = line.Replace("\n", ""); newline = newline.Replace("\r", ""); try
{ if (newline[0].ToString() == "0") { //MessageBox.Show("newperson wotwot!"); newline = newline.Replace("@", ""); newline = newline.Replace("0", ""); newline = newline.Replace("INDI", ""); TreeNode newperson = new TreeNode(newline); gedcomtree.Nodes.Add(newperson); currentperson = newperson;

using System;
using System.ComponentModel;
using System.Windows.Forms;

public partial class FormMain : Form
{
    public FormMain()
    {
        InitializeComponent();
        Load += new EventHandler(Form1_Load);
    }

    void Form1_Load(object sender, EventArgs e)
    {
        CustomBackgroundWorker bgw = new CustomBackgroundWorker();
        bgw.RunWorkerCompleted += new RunWorkerCompletedEventHandler(bgw_RunWorkerCompleted);
        bgw.RunWorkerAsync("Test");
    }

    private void bgw_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
    {
        CustomBackgroundWorker bgw = sender as CustomBackgroundWorker;
        if (bgw != null && bgw.Argument != null)
        {
            MessageBox.Show((string)bgw.Argument);
        }
    }
}

public class CustomBackgroundWorker : BackgroundWorker
{
    private object argument;

    public new void RunWorkerAsync(object argument)
    {
        this.argument = argument;
        base.RunWorkerAsync(argument);
    }

    public object Argument
    {
        get { return argument; }
    }
}

public object Result { 
    get
    { 
        base.RaiseExceptionIfNecessary(); 
        return result; 
    } 
}

protected void RaiseExceptionIfNecessary() 
{ 
    if (Error != null)
    { 
        throw new TargetInvocationException(SR.GetString(SR.Async_ExceptionOccurred), Error); 
    } 
    else if (Cancelled)
    { 
        throw new InvalidOperationException(SR.GetString(SR.Async_OperationCancelled)); 
    }     
}

Luc Pattyn wrote:

why do we need to set WorkerReportsProgress and WorkerSupportsCancellation true

Luc Pattyn wrote:

And why do its events not offer a sender object

Luc Pattyn wrote:

why do BGWs not have a Tag property

DaveyM69 wrote:

They do

DaveyM69 wrote:

(Tag property...) would need to have locks applied

/// < summary>
/// Gets the list of filenames in a certain directory path.
/// < /summary>
/// < param name="path">Directory path< /param>
/// < param name="searchPattern">For all files, use "*.*".
/// < para>For hex files only, use "*.hex"< /para>< /param>
/// < returns> List of filenames in a directory path.
/// < /returns>