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Writing text from textbox to file...

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Join Date: Oct 2006

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Writing text from textbox to file...

Oct 9th, 2006

So I'm working on a program where you fill in some textboxes and press a button to generate a .txt file with the texts in it...

I'm working in Visual Studio Express (C++)

The only thing i have so far is:

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private: System::Void btnAdd_Click(System::Object^ sender, System::EventArgs^ e)
{
char text1[20]
 
fstream file_op("C:\\Textol.txt", ios::out); 
file_op<<text1;
file_op.close();

and i included

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#include<fstream>
#include<conio.h>
#include<stdio.h>
 
// and added to namespaces 
 
usingnamespace std;

The textboxes are auto generated etc...

The problem is How to I write the text from the textboxes into my file.. i cant add them like this:

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file_op<<txt1->Text;

I have to get some kind of way to save the string texts to a varable.. but how..

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Re: Writing text from textbox to file...

Oct 9th, 2006

You know the ID of each text box, right? And you have the HWND of the dialog box that contains the edit controls, right? Then use GetWindowText() for each box

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char text[255]; // or however long the strings are
// hWnd is the HWND of the dialog box
HWND hEditWnd = GetDlgItem(hWnd,IDC_EDIT1);
// get 1st text box
GetWindowText(hEditWnd, text);
char text[255]; // or however long the strings are
// hWnd is the HWND of the dialog box
HWND hEditWnd = GetDlgItem(hWnd,IDC_EDIT1);
// get 1st text box
GetWindowText(hEditWnd, text);

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Re: Writing text from textbox to file...

Oct 9th, 2006

Since it appears you are using managed (.NET) code, why not use the .NET classes for file IO? I'm no expert at C++/CLI but it might be as simple as:

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System::IO::StreamWriter^ sw = gcnew StreamWriter("file.txt");
sw->WriteLine(txt1->Text);
System::IO::StreamWriter^ sw = gcnew StreamWriter("file.txt");
sw->WriteLine(txt1->Text);

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out of this stony rubbish?"

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Join Date: Oct 2006

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Re: Writing text from textbox to file...

Oct 10th, 2006

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Originally Posted by GloriousEremite

Since it appears you are using managed (.NET) code, why not use the .NET classes for file IO? I'm no expert at C++/CLI but it might be as simple as:
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System::IO::StreamWriter^ sw = gcnew StreamWriter("file.txt");
sw->WriteLine(txt1->Text);
System::IO::StreamWriter^ sw = gcnew StreamWriter("file.txt"); sw->WriteLine(txt1->Text);

Thanks allot that really helped :cheesy: :cheesy:

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Re: Writing text from textbox to file...

Oct 10th, 2006

OK so thanks for your help, onto the next problem!! :cheesy:

now that i wrote the text to the .txt file I want it (when the form loads) to read the text and display it in the textboxes....

what i got is this:

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private: System::Void Form1_Load(System::Object^ sender, System::EventArgs^ e)
{
System::IO::StreamReader^ sr=gcnew StreamReader("C:\\Textol.txt");
sr->ReadLine();
sr->Close();
}

I'm jsut asking myself do I transfer the text in one action, or do i have to save it to a variable... (I don't have any idea where the text goes when I use sr->Readline(); )

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Re: Writing text from textbox to file...

Oct 10th, 2006

That's because it doesn't go anywhere

Try this:

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 private: System::Void Form1_Load(System::Object^ sender, System::EventArgs^ e)
{
System::IO::StreamReader^ sr=gcnew StreamReader("C:\\Textol.txt");
Txt1->Text = sr->ReadLine();
sr->Close();
}
 private: System::Void Form1_Load(System::Object^ sender, System::EventArgs^ e)
{
System::IO::StreamReader^ sr=gcnew StreamReader("C:\\Textol.txt");
Txt1->Text = sr->ReadLine();
sr->Close();
}