C # solution for program freezing (no response) caused by the scroll bar of the multi-thread write dview

Because the write program involves multi-thread maintenance of a dview, And then it often gets stuck when it finds it painful... At first, I thought it was the cause of the read/write conflict. Then I applied the lock and the problem remained... Then the program will not respond every time the scroll bar appears, so it should feel like a problem with the scroll bar...

I can solve the problem by using Invoke on the Internet. After a try, it may be because the method I used is incorrect or the problem is not solved.-_-|

Finally solved with InvokeRequired...

Because the code for modifying the DataGridView is written in the form, so...

        private static object obj = new object();        private delegate void ChangeFunction(PackageMessage pm, string Message);        public void AddWarning(PackageMessage pm, string Message)        {            if (dgv.InvokeRequired)            {                ChangeFunction c = new ChangeFunction(AddWarning);                this.Invoke(c, new object[] { pm, Message });            }            else            {                lock (obj)                {                    DataRow dr = MessageDT.NewRow();                    dr[0] = pm.GetSendTime().ToString();                    dr[1] = pm.GetSourceIP().ToString() + ":" + pm.GetSourcePort().ToString();                    dr[2] = pm.GetDestinaionIP().ToString() + ":" + pm.GetDestinationPort().ToString();                    dr[3] = Message;                    MessageDT.Rows.Add(dr);                }            }        }

It indicates that dgv is a DataGridView object. At first, it was better to bind a DataTable dt, and the result was useless... -_-|

Just add InvokeRequired. It seems that there is no problem when the lock is not added, but I added it for security reasons...

Write functional code in else, or in lock (if you lock it). The form of if is similar, that is, the parameters should be different ~