委托事件 问题 求求各位大神了

Question

public event clsOPC.DataChangeEventHandler DataChange
{
[MethodImpl(MethodImplOptions.Synchronized)]
add
{
this.DataChange += (clsOPC.DataChangeEventHandler)Delegate.Combine(this.DataChange, value);

        }
        [MethodImpl(MethodImplOptions.Synchronized)]
        remove
        {

         this.DataChange += (clsOPC.DataChangeEventHandler)Delegate.Remove(this.DataChange, value);
        }
    }
    protected virtual void DataChangeEvent(int wTransID, int iItemCount, int[] iClientHds, object[] vValues, FILETIME[] ftTimeStamps, short[] wQualities, int[] pErrors)
    {
        MyOPCDATAChangeList[] oPCDataChangeList = this.GetOPCDataChangeList();
        this.DataChange(this, new OPCDataChangeEventArgs(oPCDataChangeList));
    }

Answer 1

你的具体问题时什么没有说清楚。