public void Download()
{
try
{
// Construct the temporary file path.
string tempPath = tbPath.Text.Trim() + ".tmp";
// Delete the temporary file if it already exists.
if (File.Exists(tempPath))
{
File.Delete(tempPath);
}
// Initialize an instance of HttpDownloadClient.
// Store the file to a temporary file first.
client = new HttpDownloadClient(tbURL.Text, tempPath);
// Register the events of HttpDownloadClient.
client.DownloadCompleted += new EventHandler <HttpDownloadCompletedEventArgs>(
DownloadCompleted);
client.DownloadProgressChanged +=
new EventHandler <HttpDownloadProgressChangedEventArgs>(DownloadProgressChanged);
client.StatusChanged += new EventHandler(StatusChanged);
// Start to download file.
client.Start();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
/// <summary>
/// Handle btnDownload Click event.
/// </summary>
private void btnDownload_Click(object sender, EventArgs e)
{
try
{
// Check whether the file exists.
if (File.Exists(tbPath.Text.Trim()))
{
string message = "There is already a file with the same name, "
+ "do you want to delete it? "
+ "If not, please change the local path. ";
var result = MessageBox.Show(
message,
"File name conflict: " + tbPath.Text.Trim(),
MessageBoxButtons.OKCancel);
if (result == System.Windows.Forms.DialogResult.OK)
{
File.Delete(tbPath.Text.Trim());
}
else
{
return;
}
}
// Construct the temporary file path.
string tempPath = tbPath.Text.Trim() + ".tmp";
// Delete the temporary file if it already exists.
if (File.Exists(tempPath))
{
File.Delete(tempPath);
}
// Initialize an instance of HttpDownloadClient.
// Store the file to a temporary file first.
client = new HttpDownloadClient(tbURL.Text, tempPath);
// Register the events of HttpDownloadClient.
client.DownloadCompleted += new EventHandler <HttpDownloadCompletedEventArgs>(
DownloadCompleted);
client.DownloadProgressChanged +=
new EventHandler <HttpDownloadProgressChangedEventArgs>(DownloadProgressChanged);
client.StatusChanged += new EventHandler(StatusChanged);
// Start to download file.
client.Start();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}