Splitting text

[ripspinner]

I'm trying to split a text from a text file into token strings but I really have no clue

if ( (openFileDialog1->OpenFile()) != nullptr ){
     this->filename = openFileDialog1->SafeFileName;
     this->reader = gcnew System::IO::StreamReader(filename);
     this->textBox1->Text="";
     std::string * input_array;
     do
	{
            	this->input= reader->ReadLine();
		String^ delimeter = ",";
		foreach(delimeter in input)
			{
				input_array = input->Split(delimeter);
			}
		}  
     while(reader->Peek() != -1);
}     
 this->reader->Close();this->reader=nullptr;

Here are the errors
1>------ Build started: Project: LessonForm, Configuration: Debug Win32 ------
1>Compiling...
1>cl : Command line warning D9025 : overriding '/clrure' with '/clr'
1>LessonForm.cpp
1>c:\users\ripspinner\documents\visual studio 2008\projects\lessonform\lessonform\Form1.h(678) : error C2146: syntax error : missing ')' before identifier 'in'
1>c:\users\ripspinner\documents\visual studio 2008\projects\lessonform\lessonform\Form1.h(678) : error C2059: syntax error : ')'
1>c:\users\ripspinner\documents\visual studio 2008\projects\lessonform\lessonform\Form1.h(679) : error C2143: syntax error : missing ';' before '{'
1>c:\users\ripspinner\documents\visual studio 2008\projects\lessonform\lessonform\Form1.h(680) : error C2664: 'cli::array<Type,dimension> ^System::String::Split(...cli::array<wchar_t,1> ^)' : cannot convert parameter 1 from 'System::String ^' to 'wchar_t'
1> with
1> [
1> Type=System::String ^,
1> dimension=1
1> ]
1> No user-defined-conversion operator available, or
1> There is no context in which this conversion is possible
1>c:\users\ripspinner\documents\visual studio 2008\projects\lessonform\lessonform\Form1.h(678) : error C3861: 'foreach': identifier not found
1>Build log was saved at "file://c:\Users\ripspinner\Documents\Visual Studio 2008\Projects\LessonForm\LessonForm\Debug\BuildLog .htm"
1>LessonForm - 5 error(s), 1 warning(s)
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

[ripspinner]

I figured out a solution

if ( (openFileDialog1->OpenFile()) != nullptr ){
					 this->filename = openFileDialog1->SafeFileName;
					this->reader = gcnew System::IO::StreamReader(filename);
					this->textBox1->Text="";
					System::String^ split;
					do
					{
						this->input= reader->ReadLine();
						String^ delimeter = ",";
						int start_index = 0;
						for (int index = this->input->IndexOf(delimeter, start_index); this->input->LastIndexOf(delimeter); index ++)
								{
									split = this->input->Substring(index,this->input->IndexOf(delimeter));
								}
					}   
					while(reader->Peek() != -1);
				}
				 this->reader->Close();this->reader=nullptr;

			  }