get_Item MoveNext 无法显式调用运算符或访问器

public Dictionary<int, MyProcess> mDict;

this.mDict.MoveNext(pID).ParentProce = this.mDict.get_Item(Convert.ToInt32(obj2["ParentProcessID"])).ProceName;

using System;
using System.Runtime.Serialization;

namespace SvcHost.DataContracts
{
    
    [DataContract]
    public class MyProcess
    {
        [DataMember]
        public bool Active;
        [DataMember]
        public string CompanyName;
        [DataMember]
        public double CpuPercent;
        [DataMember]
        public string CreateTime;
        [DataMember]
        public string Creator;
        [DataMember]
        public string ExecPath;
        [DataMember]
        public long MemoryKB;
        [DataMember]
        public long OldCpuTime;
        [DataMember]
        public string ParentProce;
        [DataMember]
        public int ProceID;
        [DataMember]
        public string ProceName;
        [DataMember]
        public bool Target;
        [DataMember]
        public int ThreadsCount;
        [DataMember]
        public long VirtualKB;
    }
}
get_Item  MoveNext 无法显式调用运算符或访问器
改成Item也不成 --------------------编程问答-------------------- this.mDict.MoveNext(pID).ParentProce = this.mDict[Convert.ToInt32(obj2["ParentProcessID"])].ProceName

补充：.NET技术 ,  C#