Constant error in compiler using C#'s provided objects
- by dotnetdev
I have used the built in C# methods to write a compiler, like the following:
CodeDomProvider codeProvider = CodeDomProvider.CreateProvider("CSharp");
string Output = "Out.exe";
Button ButtonObject = (Button)sender;
this.RadTextBox1.Text = string.Empty;
System.CodeDom.Compiler.CompilerParameters parameters = new CompilerParameters();
//Make sure we generate an EXE, not a DLL
parameters.GenerateExecutable = true;
parameters.OutputAssembly = Output;
CompilerResults results = codeProvider.CompileAssemblyFromSource(parameters, RadTextBox1.Text);
if (results.Errors.Count > 0)
{
RadTextBox2.ForeColor = Color.Red;
foreach (CompilerError CompErr in results.Errors)
{
RadTextBox2.Text = RadTextBox2.Text +
"Line number " + CompErr.Line +
", Error Number: " + CompErr.ErrorNumber +
", '" + CompErr.ErrorText + ";" +
Environment.NewLine + Environment.NewLine;
}
}
else
{
//Successful Compile
RadTextBox2.ForeColor = Color.Blue;
Guid guid = Guid.NewGuid();
string PathToExe = Server.MapPath(Path.Combine(@"\Compiled" , Output));
FileStream fs = System.IO.File.Create(PathToExe);
using (StreamWriter sw = new StreamWriter(fs))
{
sw.Write(RadTextBox1.Text);
}
Response.WriteFile(PathToExe);
When I run this code and write a Main method (such as the code sample in http://msdn.microsoft.com/en-us/library/ms228506(VS.80).aspx, I get this error:
Line number 0, Error Number: CS5001, 'Program 'c:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\Out.exe' does not contain a static 'Main' method suitable for an entry point;
The code above is used as the basis of a compiler on my site (not yet live). So you type in code and generate an .exe assembly. But when I enter code into the textbox for code writing (Radtextbox1), even with a main method, I get the error.
What gives?
Thanks
