C#动态创建类实例并动态调用指定的函数

来源：互联网发布：西门子300编程电缆编辑：程序博客网时间：2024/06/10 08:27

类定义：

namespace DynamicFuncTest{    class TestClass03    {        private string sText = "Member string";        public string TestFunction01()        {            return "TestClass03 TestFunction01";        }        public string TestFunction02(string sStr)        {    sText = sStr;            return "TestClass03 TestFunction02" + sText;        }    }}

调用：

        private void Btn_Exectue_ClassBuildInFunc_Click(object sender, EventArgs e)        {            if (T_FunctionInClass.Text.Length == 0)            {                MessageBox.Show("Pls choice function.");                return;            }            Type type = System.Type.GetType("DynamicFuncTest.TestClass03");            MethodInfo mi = type.GetMethod(T_FunctionInClass.Text);            object testClass = Activator.CreateInstance(type);            //TestClass03 testClass = new TestClass03();                // It is ok too.                        /*             * // Can use below steps to load the dll, then get the type.             * Assembly assemblyTmp = Assembly.LoadFrom(sFileName);             * Type type = assemblyTmp.GetType("NameSpace.ClassName");             * object testClass = assemblyTmp.CreateInstance(type);             */            //object[] objParams = null;            //T_Result_ClassBuildIn.Text = (string)mi.Invoke(testClass, objParams);            object[] objParams = new object[1];            objParams[0] = T_Params_InClass.Text;            T_Result_ClassBuildIn.Text = (string)mi.Invoke(testClass, objParams);        }

如果类在dll中，则先加载dll。

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