private void OnRegChanged(object sender, EventArgs e)
{
if (listBox1.InvokeRequired)
{
listBox1.BeginInvoke(new EventHandler(OnRegChanged), new object[] { sender, e });
return;
}
listBox1.Items.Add("Registry has changed");
}
/// <summary>
/// 跨线程清除listbox的item
/// </summary>
/// <param name="lb"></param>
public void CrossThreadClearListboxItem(ListBox lb)
{
if (lb.InvokeRequired)
{
DelegateforClearListboxItem del = new DelegateforClearListboxItem(CrossThreadClearListboxItem);
lb.BeginInvoke(del, new object[] { lb });
}
else
{
lb.Items.Clear();
}
}
public void Remove(ClientInfo item, ListBox list)
{
if (list.InvokeRequired)
{
list.BeginInvoke(new MethodInvoker(delegate
{
Remove(item, list);
}));
}
else
{
list.Items.Remove(item);
}
}
public string GetSelectedListBoxIdx(ListBox anything, int idx)
{
string rStr = string.Empty;
anything.BeginInvoke((MethodInvoker)delegate
{
try
{
rStr = (string) anything.Items[idx];
}
catch
{
}
});
return rStr;
}
private void UpdateClientListControl()
{
if (InvokeRequired) // Is this called from a thread other than the one created
// the control
{
// We cannot update the GUI on this thread.
// All GUI controls are to be updated by the main (GUI) thread.
// Hence we will use the invoke method on the control which will
// be called when the Main thread is free
// Do UI update on UI thread
listBoxClientList.BeginInvoke(new UpdateClientListCallback(UpdateClientList), null);
}
else
{
// This is the main thread which created this control, hence update it
// directly
UpdateClientList();
}
}
void NetComCallbackSE(Object sender, MNetCom.MSERec records, int numRecords, string objectName)
{
//since we passed the this pointer to the callback object, we can assume that the sender
//is of type NetComExampleStreamsForm.
NetComExampleStreamsForm thisClass = (NetComExampleStreamsForm)sender;
//add the object name to the textbox
string msgString;
msgString = "Received SE Record For: " + objectName + " at DAS TS " + records.qwTimeStamp.ToString();
// Update UI on the UI thread using delegate.
AsyncRecordLogUpdate RecordLogUpdateDelegate = new AsyncRecordLogUpdate(RecordLogUpdate);
lbRecordLog.BeginInvoke(RecordLogUpdateDelegate, new Object[] { msgString });
}
public void SetSelectedListBoxIdx(ListBox anything, int idx, bool state)
{
anything.BeginInvoke((MethodInvoker)delegate
{
try
{
anything.SetSelected(idx, state);
}
catch
{
}
});
}
/// <summary>
/// 实现跨线程插入到Listbox中数据的函数
/// </summary>
/// <param name="lb"></param>
/// <param name="strMsg"></param>
public void CrossTreadAddItemtoListbox(ListBox lb, string strMsg)
{
if (lb.InvokeRequired)
{
DelegateforAddItemToListbox del = new DelegateforAddItemToListbox(CrossTreadAddItemtoListbox);
lb.BeginInvoke(del, new object[] { lb, strMsg });
}
else
{
lb.Items.Add(strMsg);
}
}
private void ShowInfoProc(string strMsg, ListBox lstBox, int nMax)
{
lstBox.BeginInvoke((Action)delegate ()
{
lstBox.BeginUpdate();
lstBox.Items.Add(strMsg);
if (nMax > 0)
{
while (lstBox.Items.Count > nMax)
lstBox.Items.RemoveAt(0);
}
// Scroll to end
//
lstBox.SelectedIndex = lstBox.Items.Count - 1;
lstBox.EndUpdate();
});
}
private void ListboxItemsInsert(ListBox lb, string strVal)
{
if (lb.InvokeRequired)
{
dListboxItemsInsert d = new dListboxItemsInsert(ListboxItemsInsert);
lb.BeginInvoke(d, new object[] { lb, strVal });
}
else
{
lb.Items.Add(strVal);
}
}
private void ListBoxItemsDelete(ListBox lb)
{
if (lb.InvokeRequired)
{
dListBoxItemsDelete d = new dListBoxItemsDelete(ListBoxItemsDelete);
lb.BeginInvoke(d, new object[] { lb });
}
else
{
lb.Items.Clear();
}
}