<高手请进> 急! 关于C#动态执行代码...

[shinaterry]

using System.Text;
using Microsoft.CSharp;
using System.CodeDom.Compiler;
using System.Reflection;

namespace TestControls
{
public class ExecuteCSharp
{
public static void Eval()
{
//CSharpCodeProvider provider = new CSharpCodeProvider();
//ICodeCompiler compiler = provider.CreateCompiler();
CodeDomProvider compiler = new CSharpCodeProvider();
CompilerParameters cp = new CompilerParameters();

StringBuilder codeBuilder = new StringBuilder();

codeBuilder.AppendLine("using System;");
codeBuilder.AppendLine("using System.Text;");
codeBuilder.AppendLine("using System.Windows.Forms;");
codeBuilder.AppendLine("using System.Collections.Generic;");
codeBuilder.AppendLine();
codeBuilder.AppendLine("namespace TestControls");
codeBuilder.AppendLine("{");
codeBuilder.AppendLine(" public class Test");
codeBuilder.AppendLine(" {");
codeBuilder.AppendLine(" public void Exec()");
codeBuilder.AppendLine(" {");
codeBuilder.AppendLine(" MessageBox.Show(\"测试ing...\");");
codeBuilder.AppendLine(" }");
codeBuilder.AppendLine(" }");
codeBuilder.AppendLine("}");

cp.GenerateExecutable = false;
cp.GenerateInMemory = true;

CompilerResults cr = compiler.CompileAssemblyFromSource(cp, codeBuilder.ToString());

if (!cr.Errors.HasErrors) //注意、注意：此处通过不了
{
Assembly a = cr.CompiledAssembly;
Type t = a.GetType("Test");
MethodInfo mi = t.GetMethod("Exec", BindingFlags.Static | BindingFlags.Public);
mi.Invoke(null, new object[0]);
}
}
}
}



using System;
using System.Collections.Generic;
using System.Windows.Forms;

namespace TestControls
{
static class Program
{
/// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main()
{
ExecuteCSharp.Eval();
}
}
}


为什么我调用不了[动态代码]里的Test(类) -> Exec方法呢？

动态编译根本通过不了，是不是我用的方法错了，请高手指示...

[shinaterry]

ExecuteCSharp类已导入System命名空间的，代码有点长，请大家耐心请完...

[shinaterry]

UP

[lovefootball]

CodeDomProvider compiler = new CSharpCodeProvider();
String[] referenceAssemblies = { "System.dll", "System.Windows.Forms.dll" };

CompilerParameters cp = new CompilerParameters(referenceAssemblies);

StringBuilder codeBuilder = new StringBuilder();

codeBuilder.AppendLine("using System;");
codeBuilder.AppendLine("using System.Text;");
codeBuilder.AppendLine("using System.Windows.Forms;");
codeBuilder.AppendLine("using System.Collections.Generic;");
codeBuilder.AppendLine(" public class Test");
codeBuilder.AppendLine(" {");
codeBuilder.AppendLine(" public static void Exec()");
codeBuilder.AppendLine(" {");
codeBuilder.AppendLine(" MessageBox.Show(\"testing...\");");
codeBuilder.AppendLine(" }");
codeBuilder.AppendLine(" }");

cp.GenerateExecutable = false;
cp.GenerateInMemory = true;

CompilerResults cr = compiler.CompileAssemblyFromSource(cp, codeBuilder.ToString());

if (!cr.Errors.HasErrors)
{
Assembly a = cr.CompiledAssembly;
Type t = a.GetType("Test");
t.InvokeMember("Exec", BindingFlags.Public |
BindingFlags.Static | BindingFlags.InvokeMethod,
System.Type.DefaultBinder, null, null);
}

[cby1990]

楼上的正解

[shinaterry]

TO：lovefootball

很感谢你热心的帮忙...

现在可以啦！
之前我也在代码里也加过:
String[] referenceAssemblies = { "System.dll", "System.Windows.Forms.dll" };
CompilerParameters cp = new CompilerParameters(referenceAssemblies);
可是报了空引用异常...

原来是[命名空间]和[静态方法]的原因...

不过我想知道！
动态编译代码这种手法是不是不可以有[命名空间]呢？还有里面的方法一定是静态的吗？

如果我必须要在动态类里面加入[命名空间]的话，该怎么办呢？

请指教...

[shinaterry]

今晚下班后结贴...

[qiyu20031022]

顶，看来问题解决了呀，哈哈

[hegh736]

lz还没下班呀！太强了！

[王集鹄]

// 载入其他库

private void button1_Click(object sender, EventArgs e)
{
ICodeCompiler vCodeCompiler = new CSharpCodeProvider().CreateCompiler();
CompilerParameters vCompilerParameters = new CompilerParameters();
vCompilerParameters.GenerateExecutable = false;
vCompilerParameters.GenerateInMemory = true;
vCompilerParameters.ReferencedAssemblies.Add("System.Windows.Forms.dll"); // 关键语句
string vSource =
"using System.Windows.Forms;\n" +
"public class Temp\n" +
"{\n" +
" public void Test()\n" +
" {\n" +
" MessageBox.Show(\"Hello World!\");\n" +
" }\n" +
"}\n";
CompilerResults vCompilerResults =
vCodeCompiler.CompileAssemblyFromSource(vCompilerParameters, vSource);

Assembly vAssembly = vCompilerResults.CompiledAssembly;
object vTemp = vAssembly.CreateInstance("Temp");
MethodInfo vTest = vTemp.GetType().GetMethod("Test");
vTest.Invoke(vTemp, null);
}

[shinaterry]

最近任务很多...

所以晚了下班...

不好意思! 另外要感谢大家热心的支持...

谢谢...

[shinaterry]

终于搞定了! ^0^

不过我还有一个疑问：

不知道[动态代码]在运行时编译后，能否实现调用主应用程序里面原来的方法呢？（我尝试ing...）

描述得比较模糊，希望大家能够明白...

如果这个问题能解决的话，我会另外开贴回报的...

谢谢...

[shinaterry]

新贴地址：http://community.csdn.net/Expert/topic/5517/5517522.xml?temp=.1310236

请大家继续关注...

谢谢...