private void RemoveAttachedFileButton_Click(object sender, EventArgs e)
{
for (int x = attachmentListBox.SelectedIndices.Count - 1; x >= 0; x--)
{
int element = attachmentListBox.SelectedIndices[x];
// decrement total file size
FilesTotalLength -= new FileInfo(AttachmentFilePaths[element]).Length;
AttachmentFilePaths.RemoveAt(element);
AttachmentFileNames.RemoveAt(element);
}
UpdateTotalFilesLengthInfo();
UpdateBindings();
toolStripStatusLabel.Text = string.Empty;
}
private void AttachFileButton_Click(object sender, EventArgs e)
{
if (openFileDialog.ShowDialog() == DialogResult.OK)
{
foreach (string file in openFileDialog.FileNames)
{
// check, if list contains current file
if (AttachmentFilePaths.Contains(file))
{
MessageBox.Show($"File '{file}' already added", "Information", MessageBoxButtons.OK, MessageBoxIcon.Information);
continue;
}
long fileLength = new FileInfo(file).Length;
if (FilesTotalLength + fileLength > (long.Parse(fileSizeLimitTextBox.Text) * 1048576))
{
toolStripStatusLabel.Text = string.Empty;
MessageBox.Show($"Attachment(s) total file size exceeds the limit allowed", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
continue;
}
else
{
// increment total file size
FilesTotalLength += fileLength;
}
AttachmentFilePaths.Add(file);
AttachmentFileNames.Add(Path.GetFileName(file));
}
UpdateTotalFilesLengthInfo();
UpdateBindings();
toolStripStatusLabel.Text = "File(s) added";
}
}