public void CanCompileAndLoadADll()
{
var cs = @"public class Foo{public int Version() {return 1;}}";
var assembly = new CSharpCodeProvider()
.CompileAssemblyFromSource(new CompilerParameters(), cs)
.CompiledAssembly;
dynamic foo = assembly.CreateInstance("Foo");
Assert.AreEqual(1, foo.Version());
}
private static Func <DataRow, object> NewClass(DataTable table)
{
var classSource = new StringBuilder();
classSource.Append(string.Format("public class {0} \n", table.TableName));
classSource.Append("{\n");
foreach (DataColumn column in table.Columns)
{
classSource.Append(string.Format("public {0} {1}", column.DataType.Name, column.ColumnName) + " {set;get;}\n");
}
classSource.Append("}\n");
//设置编译参数。
var paras = new CompilerParameters {
GenerateExecutable = true, GenerateInMemory = true
};
paras.ReferencedAssemblies.Add("System.dll");
paras.ReferencedAssemblies.Add("System.Data.dll");
//编译代码,获取编译后的程序集。
var assembly = new CSharpCodeProvider().CompileAssemblyFromSource(paras, classSource.ToString()).CompiledAssembly;
return(new Func <DataRow, object>(row =>
{
var entity = assembly.CreateInstance(table.TableName);
foreach (var pro in entity.GetType().GetProperties())
{
foreach (DataColumn column in table.Columns)
{
if (column.ColumnName.Replace("_", "").ToUpper() == pro.Name.ToUpper() && row[column] != DBNull.Value)
{
pro.SetValue(entity, row[column], null);
}
}
}
return entity;
}));
}
