// dynamic filling of menu
private void cms_Opening(object sender, CancelEventArgs e)
{
Debug.Assert(list.Count != 0 && current != null);
cms.Items.Clear();
ToolStripItem tssb = ((ToolStripDropDownMenu)sender).OwnerItem;
bool isBackMenu = tssb.Equals(tssbBack);
LinkedListNode <T> node = isBackMenu ? current.Next : current.Previous;
while (node != null)
{
var tsmi = new ToolStripMenuItem();
tsmi.Tag = node;
if (_GetMenuText != null)
{
tsmi.Text = _GetMenuText(node.Value);
}
else
{
tsmi.Text = node.Value.ToString();
}
if (_GetMenuImage != null)
{
tsmi.Image = _GetMenuImage(node.Value);
}
cms.Items.Add(tsmi);
node = isBackMenu ? node.Next : node.Previous;
}
}
private void ContextMenuStrip4_ItemClicked(object sender, ToolStripItemClickedEventArgs e)
{
TreeNode CurSelectedNode = treeView1.SelectedNode;
TreeNode ParentNode = CurSelectedNode.Parent;
ToolStripItem Item1 = e.ClickedItem;
var plc = pmg.FindPLCByName(ParentNode.Name);
if (Item1.Equals(this.contextMenuStrip3.Items[0]))
{
plc.varlist.Remove(plc.FindvarItemByName(CurSelectedNode.Text));
CurSelectedNode.Remove();
}
}
private void ContextMenuStrip2_ItemClicked(object sender, ToolStripItemClickedEventArgs e)
{
TreeNode CurSelectedNode = treeView1.SelectedNode;
ToolStripItem Item1 = e.ClickedItem;
if (Item1.Equals(this.contextMenuStrip2.Items[0]))
{
if (CurSelectedNode.Nodes.Count == 0)
{
treeView1.Nodes.Remove(CurSelectedNode);
contextMenuStrip1.Items[CurSelectedNode.Name].Enabled = true;
}
else
{
MessageBox.Show("CurTreeNode is not Empty!");
}
return;
}
else
{
Form2 AddPlcFormDlg = new Form2();
AddPlcFormDlg.ParentForm1 = this;
if (AddPlcFormDlg.ShowDialog() == DialogResult.OK)
{
CurSelectedNode.Nodes.Clear();
var nodes = from plc in this.pmg.List
select plc.Node;
CurSelectedNode.Nodes.AddRange(nodes.ToArray());
treeView1.ExpandAll();
}
else
{
MessageBox.Show("Cancel");
}
AddPlcFormDlg.Close();
return;
}
}
private void ContextMenuStrip3_ItemClicked(object sender, ToolStripItemClickedEventArgs e)
{
TreeNode CurSelectedNode = treeView1.SelectedNode;
ToolStripItem Item1 = e.ClickedItem;
var plc = pmg.FindPLCByName(CurSelectedNode.Name);
if (Item1.Equals(this.contextMenuStrip3.Items[3]))
{
Form3 AddvarDlg = new Form3(this);
if (AddvarDlg.ShowDialog() == DialogResult.OK)
{
MessageBox.Show("新增PLC变量成功");
}
else
{
MessageBox.Show("取消增加PLC变量");
}
AddvarDlg.Close();
}
if (Item1.Equals(this.contextMenuStrip3.Items[1]))
{
try
{
plc.Open();
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
return;
//throw;
}
if (plc.IsConnected)
{
plc.CycleTimer.Enabled = true;
plc.Node.BackColor = Color.Blue;
}
else
{
MessageBox.Show(string.Format($"{0} is not connected yet", plc.name));
}
return;
}
if (Item1.Equals(this.contextMenuStrip3.Items[2]))
{
if (plc.IsConnected)
{
plc.CycleTimer.Enabled = false;
plc.Close();
plc.Node.BackColor = Color.Black;
MessageBox.Show("PLC has been closed!");
}
else
{
MessageBox.Show(string.Format($"{0} is not connected yet", plc.name));
}
}
if (Item1.Equals(this.contextMenuStrip3.Items[0]))
{
if (plc.IsConnected)
{
MessageBox.Show("请断开当前PLC！");
return;
}
else
{
CurSelectedNode.Nodes.Remove(plc.Node);
Pmg.del(plc);
MessageBox.Show(string.Format($"PLC{0}已被删除", plc.name));
plc = null;
return;
}
}
}
