我的目标:通过使用CodeDom创建一个Windows窗体应用程序(可执行文件)。我的意思是我想要一个表单(在表单后面有一些代码)并将其转换为可执行文件(就好像我已经进入Visual Studio并单击“Build”>“Build File”)。不可否认,我在网上找到了这个例子,之后我对它进行了轻微的修改。我在尝试生成这段代码时遇到错误 - 我以前从未见过的错误。此外,我在Google上找不到这些错误(奇怪的是对吗?)...
这是我得到的错误: 不支持元素类型System.CodeDom.CodeExpression。 参数名称:e
我在以下行收到此错误:
CodeProvider.GenerateCodeFromCompileUnit(Unit, writer, new CodeGeneratorOptions());
这是我的完整代码:
{
CodeDomProvider CodeProvider = CodeDomProvider.CreateProvider("CSharp");
// Create the Unit
CodeCompileUnit Unit = new CodeCompileUnit();
// Define a namespace and add Imports statements
CodeNamespace Namespaces = new CodeNamespace("Test.CreateForm");
Namespaces.Imports.Add(new CodeNamespaceImport("System"));
Namespaces.Imports.Add(new CodeNamespaceImport("System.Drawing"));
Namespaces.Imports.Add(new CodeNamespaceImport("System.Windows.Forms"));
Namespaces.Imports.Add(new CodeNamespaceImport("System.Xml"));
Namespaces.Imports.Add(new CodeNamespaceImport("System.Data"));
Unit.Namespaces.Add(Namespaces);
// Declare the type including base type
CodeTypeDeclaration MyType = new CodeTypeDeclaration("Form1");
MyType.IsClass = true;
MyType.TypeAttributes = System.Reflection.TypeAttributes.Public;
MyType.BaseTypes.Add("System.Windows.Forms.Form");
Namespaces.Types.Add(MyType);
// Create the constructor and add code
CodeConstructor Constructor = new CodeConstructor();
Constructor.Statements.Add(
new CodeMethodInvokeExpression(
new CodeThisReferenceExpression(),"InitializeComponent", new CodeExpression() {}));
Constructor.Attributes = MemberAttributes.Public ;
MyType.Members.Add(Constructor);
// Declare component container
MyType.Members.Add(new CodeMemberField("System.ComponentModel.IContainer", "components"));
// Implement the Dispose method
CodeMemberMethod DisposeMethod = new CodeMemberMethod();
DisposeMethod.Name = "Dispose";
DisposeMethod.Attributes = MemberAttributes.Family;
DisposeMethod.Parameters.Add(
new CodeParameterDeclarationExpression(
typeof(Boolean), "disposing"));
CodeConditionStatement Statement = new CodeConditionStatement();
Statement.Condition = new CodeArgumentReferenceExpression("disposing");
CodeConditionStatement TrueStatement = new CodeConditionStatement();
TrueStatement.Condition =
new CodeBinaryOperatorExpression(
new CodeArgumentReferenceExpression("components"),
CodeBinaryOperatorType.IdentityInequality,
new CodePrimitiveExpression(null));
TrueStatement.TrueStatements.Add(
new CodeMethodInvokeExpression(
new CodeFieldReferenceExpression(null,
"components"), "Dispose", new CodeExpression() {}));
Statement.TrueStatements.Add(TrueStatement);
DisposeMethod.Statements.Add(Statement);
DisposeMethod.Statements.Add(new CodeMethodInvokeExpression( new CodeBaseReferenceExpression(), "Dispose", new CodeArgumentReferenceExpression[]
{new CodeArgumentReferenceExpression("disposing")}));
MyType.Members.Add(DisposeMethod);
// InitializeComponent
CodeMemberMethod InitializeMethod = new CodeMemberMethod();
InitializeMethod.Name = "InitializeComponent";
InitializeMethod.Attributes = MemberAttributes.Private;
InitializeMethod.CustomAttributes.Add(
new CodeAttributeDeclaration(
"System.Diagnostics.DebuggerStepThrough"));
InitializeMethod.Statements.Add(
new CodeAssignStatement(
new CodeFieldReferenceExpression(
new CodeThisReferenceExpression(), "components"),
new CodeObjectCreateExpression(
new CodeTypeReference(
typeof(System.ComponentModel.Container)),
new CodeExpression() { })));
MyType.Members.Add(InitializeMethod);
// Main entry point
CodeEntryPointMethod MainMethod = new CodeEntryPointMethod();
MainMethod.Name = "Main";
MyType.Members.Add(MainMethod);
//Add mouse move event
CodeMemberEvent eventstate = new CodeMemberEvent();
eventstate.Name = "MouseMove";
eventstate.Attributes = MemberAttributes.Final | MemberAttributes.Public;
eventstate.Type = new CodeTypeReference("System.Windows.Forms.MouseEventHandler");
MyType.Members.Add(eventstate);
string OutputName = "Some.cs";
try
{
CodeGeneratorOptions options = new CodeGeneratorOptions();
options.BlankLinesBetweenMembers = true;
options.ElseOnClosing = false;
options.BracingStyle = "C";
// This is what we'll write the generated code to
IndentedTextWriter writer = new IndentedTextWriter(new StreamWriter(OutputName, false), " ");
try
{
CodeProvider.GenerateCodeFromCompileUnit(Unit, writer, new CodeGeneratorOptions());
writer.Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
writer.Close();
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
// Create the compiler options
// Include referenced assemblies
CompilerParameters Options = new CompilerParameters();
Options.GenerateExecutable = true;
Options.OutputAssembly = "TestForm1.exe";
Options.CompilerOptions = "/target:winexe";
Options.MainClass = "Test.CreateForm.Form1";
string[] referenceAssemblies = { "System.dll", "System.Data.dll", "System.Drawing.dll", "System.Windows.Forms.dll", "System.XML.dll" };
Options.ReferencedAssemblies.AddRange(referenceAssemblies);
//Build and look for compiler errors
CompilerResults Result = CodeProvider.CompileAssemblyFromFile(Options, "Some.cs");
if (Result.Errors.Count > 0)
{
foreach(CompilerError ce in Result.Errors)
{
Console.WriteLine(ce.ErrorText);
}
}
else
{
Console.WriteLine("compiled successfully");
}
Console.WriteLine("press enter to continue");
Console.ReadLine();
}
答案 0 :(得分:1)
您有许多实例可以创建一个空的CodeExpression,例如在构造函数代码中:
// Create the constructor and add code
CodeConstructor Constructor = new CodeConstructor();
Constructor.Statements.Add(
new CodeMethodInvokeExpression(
new CodeThisReferenceExpression(), "InitializeComponent", new CodeExpression() { }));
如果你不想将任何参数传递给方法(在上面的代码中是这种情况),只是不传递任何东西(CodeMethodInvokeExpression构造函数采用params []数组,所以如果你不通过什么,这意味着它收到一个空数组):
// Create the constructor and add code
CodeConstructor Constructor = new CodeConstructor();
Constructor.Statements.Add(
new CodeMethodInvokeExpression(
new CodeThisReferenceExpression(),
"InitializeComponent"));
答案 1 :(得分:1)
如果上面的代码未吐出所需的代码,请确保您已关闭IndentedTextWriter
,例如writer.Close()
享受..
答案 2 :(得分:1)
CodeMemberMethod DisposeMethod = new CodeMemberMethod();
DisposeMethod.Name = "Dispose";
DisposeMethod.ReturnType = new CodeTypeReference(typeof(void));
DisposeMethod.Attributes = MemberAttributes.Override | MemberAttributes.Private;
DisposeMethod.Parameters.Add(new CodeParameterDeclarationExpression(typeof(bool), "disposing"));
myDesignerClass.Members.Add(DisposeMethod);
CodeConditionStatement cstif2 = new CodeConditionStatement();
CodeExpression dis = new CodeVariableReferenceExpression("disposing");
CodeExpression comp = new CodeVariableReferenceExpression("components");
cstif2.Condition = new CodeBinaryOperatorExpression(dis, CodeBinaryOperatorType.BooleanAnd, new CodeBinaryOperatorExpression(dis, CodeBinaryOperatorType.IdentityInequality, new CodePrimitiveExpression(null)));
CodeExpression dispos = new CodeMethodInvokeExpression(comp, "Dispose", new CodeExpression[] { });
cstif2.TrueStatements.Add(dispos);
DisposeMethod.Statements.Add(cstif2);
CodeExpression bdispos = new CodeMethodInvokeExpression(new CodeBaseReferenceExpression(), "Dispose", new CodeExpression[] { });
DisposeMethod.Statements.Add(bdispos);
答案 3 :(得分:0)
将()
替换为CodeExpression
[]
,错误将消失。