原文链接
    要做一个能动态生成一个简单windowsForm的程序，用CSharpCodeProvider动态编译。
    现在倒是可以生成exe了，不过生成的文件打开会有2个窗口，截图如下：

    [C#]关于WindowsForm CSharpCodeProvider动态编译的问题 - 图1

    下面是动态编译部分的代码：

    1. private void menu_export_Click(object sender, EventArgs e)  
    2. {  
    3.     string sourceName = "MyForm.cs";  
    4.     FileInfo sourceFile = new FileInfo(sourceName);  
    5.     CSharpCodeProvider provider = new CSharpCodeProvider();  
    7.     status_content_label.Text = "Exporting ... ";  
    9.     String exeName = String.Format(@"{0}\{1}.exe", "Output/", sourceFile.Name.Replace(".", "_"));  
    11.     CompilerParameters cp = new CompilerParameters();  
    13.     cp.ReferencedAssemblies.Add("System.dll");  
    14.     cp.ReferencedAssemblies.Add("System.Drawing.dll");  
    15.     cp.ReferencedAssemblies.Add("System.Windows.Forms.dll");  
    16.     //cp.ReferencedAssemblies.Add("AxInterop.ShockwaveFlashObjects.dll");  
    17.     //cp.ReferencedAssemblies.Add("Interop.ShockwaveFlashObjects.dll");  
    18.     //cp.ReferencedAssemblies.Add("System.Data.dll");  
    20.     // Generate an executable instead of   
    21.     // a class library.  
    22.     cp.GenerateExecutable = true;  
    24.     // Specify the assembly file name to generate.  
    25.     cp.OutputAssembly = exeName;  
    27.     // Save the assembly as a physical file.  
    28.     cp.GenerateInMemory = false;  
    30.     cp.IncludeDebugInformation = false;  
    32.     // Set whether to treat all warnings as errors.  
    33.     cp.TreatWarningsAsErrors = false;  
    35.     cp.CompilerOptions = "/optimize /win32icon:" + config.GetIconPath() + " MyForm.cs";  
    37.     // Invoke compilation of the source file.  
    38.     CompilerResults cr = provider.CompileAssemblyFromFile(cp, sourceName);  
    40.     string errorMessage;  
    42.     if (cr.Errors.Count > 0)  
    43.     {  
    44.         // Display compilation errors.  
    45.         errorMessage = "Errors building {0} into {1}" + sourceName + cr.PathToAssembly + "\n";  
    46.         foreach (CompilerError ce in cr.Errors)  
    47.         {  
    48.             errorMessage += "  {0}" + ce.ToString() + "\n";  
    49.         }  
    50.         errorReport.ShowError(errorMessage);  
    51.         errorReport.Show();  
    53.         status_content_label.Text = "Failed to create the exe file.";  
    54.     }  
    55.     else  
    56.     {  
    57.         status_content_label.Text = "Exe file successfully created.";  
    58.     }  
    59. }

    然后是MyForm.cs，就是用来动态编译的cs：

    1. using System;  
    2. using System.Drawing;  
    3. using System.Windows.Forms;  
    5. class MyForm : Form  
    6. {  
    7.     public MyForm()  
    8.     {  
    9.         this.Text = "Hello World";  
    10.         this.StartPosition = FormStartPosition.CenterScreen;  
    11.     }  
    13.     public static void Main()  
    14.     {  
    15.         Application.Run(new MyForm());  
    16.     }  
    17. }

    有没有人能帮忙看看呢？非常感谢！！

    找到答案了：
    cp.CompilerOptions = “/target:winexe /optimize /win32icon:” + config.GetIconPath() + “ MyForm.cs”;
    在 cp.CompilerOptions 中 加一句 /target:winexe 就可以了 默认是 Console app
    http://stackoverflow.com/questions/7497493/problems-using-windowsform-and-csharpcodeprovider
    话说stackoverflow回答真快