private void messagesGrid_RowsAdded(object sender, DataGridViewRowsAddedEventArgs e)
{
for (int i = 0; i < messagesGrid.Rows.Count; i++)
{
dal.Message currMessage = ((dal.Message)messagesGrid.Rows[i].DataBoundItem);
((DataGridViewTextBoxCell)messagesGrid.Rows[i].Cells[0]).Value = currMessage.TopicName + Environment.NewLine + Environment.NewLine + Encoding.UTF8.GetString(currMessage.Content);
if (currMessage.Incoming)
{
switch (currMessage.QOS)
{
case QOS.AT_MOST_ONCE:
((DataGridViewImageCell)messagesGrid.Rows[i].Cells[1]).Value = (System.Drawing.Image)Properties.Resources.icon_in_qos_0;
break;
case QOS.AT_LEAST_ONCE:
((DataGridViewImageCell)messagesGrid.Rows[i].Cells[1]).Value = (System.Drawing.Image)Properties.Resources.icon_in_qos_1;
break;
case QOS.EXACTLY_ONCE:
((DataGridViewImageCell)messagesGrid.Rows[i].Cells[1]).Value = (System.Drawing.Image)Properties.Resources.icon_in_qos_2;
break;
}
}
else
{
switch (currMessage.QOS)
{
case QOS.AT_MOST_ONCE:
((DataGridViewImageCell)messagesGrid.Rows[i].Cells[1]).Value = (System.Drawing.Image)Properties.Resources.icon_out_qos_0;
break;
case QOS.AT_LEAST_ONCE:
((DataGridViewImageCell)messagesGrid.Rows[i].Cells[1]).Value = (System.Drawing.Image)Properties.Resources.icon_out_qos_1;
break;
case QOS.EXACTLY_ONCE:
((DataGridViewImageCell)messagesGrid.Rows[i].Cells[1]).Value = (System.Drawing.Image)Properties.Resources.icon_out_qos_2;
break;
}
}
}
}
private void sendButton_Click(object sender, EventArgs e)
{
if (txtContent.Text.Length == 0)
{
MessageBox.Show("Content is required");
return;
}
if (txtTopic.Text.Length == 0)
{
MessageBox.Show("Topic is required");
return;
}
if (cmbQOS.SelectedIndex == -1)
{
MessageBox.Show("Please choose QOS");
return;
}
QOS messageQOS = QOS.AT_MOST_ONCE;
switch (cmbQOS.SelectedIndex)
{
case 1:
messageQOS = QOS.AT_LEAST_ONCE;
break;
case 2:
messageQOS = QOS.EXACTLY_ONCE;
break;
}
MQTTModel mqtt = new MQTTModel();
var accounts = from a in mqtt.Accounts where a.IsDefault == true select a;
dal.Message newMessage = new dal.Message();
newMessage.Content = Encoding.UTF8.GetBytes(txtContent.Text);
newMessage.Incoming = false;
newMessage.QOS = messageQOS;
newMessage.TopicName = txtTopic.Text;
newMessage.Account = accounts.First();
_client.Publish(new mqtt.avps.Topic(newMessage.TopicName, newMessage.QOS), newMessage.Content, chkRetain.Checked, chkDuplicate.Checked);
mqtt.Accounts.Attach(newMessage.Account);
mqtt.Messages.Add(newMessage);
mqtt.Entry(newMessage.Account).State = EntityState.Unchanged;
mqtt.SaveChanges();
txtContent.Text = String.Empty;
txtTopic.Text = String.Empty;
cmbQOS.SelectedIndex = -1;
chkDuplicate.Checked = false;
chkRetain.Checked = false;
MessageBox.Show("Message Sent Succesfully", "Message Sent", MessageBoxButtons.OK, MessageBoxIcon.Information);
List <dal.Message> messages = (from m in mqtt.Messages.Include("Account") where m.Account.ID == _account.ID orderby m.ID descending select m).ToList();
this.Invoke((MethodInvoker) delegate { this.messagesGrid.DataSource = messages; });
mqtt.Dispose();
}
