public void SafeDel(string keycoder)
{
if (this.listViewWorkstation.InvokeRequired)
{
DelCallback d = new DelCallback(SafeDel);
this.Invoke(d, new object[] { keycoder });
}
else
{
int pos = -1;
for (int i = 0; i < this.listViewWorkstation.Items.Count; i++)
{
for (int j = 0; j < this.listViewWorkstation.Items[i].SubItems.Count; j++)
{
if (this.listViewWorkstation.Items[i].SubItems[j].Text == keycoder)
{
pos = i;
break;
}
}
if (pos != -1)
{
break;
}
}
this.listViewWorkstation.Items[pos].Remove();
}
}
//Result 값을 외부에서 가져갈수있도록 프로퍼티화
public void Add(int n1, int n2)
{
Result = (float)n1 + n2;
//Callback 호출 발생..
//미리 등록된 함수를 호출시키는과정
//1.암시적으로 invoke 함수를 호출시킴
DelCallback(n1, n2, '+', Result);
//2.명시적 호출방법
DelCallback.Invoke(n1, n2, '+', Result);
}
public static void Main(string[] Agrs)
{
//Del handler = new Del(DelegateMethod);
Del handler = DelegateMethod;
DelCallback chanlder = MethodWithCallback;
handler("Pakistan is my land");
//MethodWithCallback(45,31,handler);
chanlder(45, 31, handler);
Console.ReadKey();
}
/// <summary>
/// 开始变化
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btn_chgVal_Click(object sender, EventArgs e)
{
call = new DelCallback(Change); //实现回调委托
//启动后台线程改变数据
Thread th = new Thread(new ThreadStart(Test));
th.IsBackground = true; //设置为后台线程
th.Start(); //启动线程
this.btn_chgVal.Enabled = false;
}
