private void removeButton_Click(object sender, EventArgs e)
{
if (sourcesListBox.SelectedItem != null)
{
try
{
client.RemoveSource((string)sourcesListBox.SelectedItem);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
DisplaySources();
}
}