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StreamWriter sw = new StreamWriter("Was sie gespeichert haben");
sw.Write(textBox4.Text, textBox5.Text, textBox6.Text, textBox7.Text, textBox8.Text, textBox9.Text, textBox10.Text, textBox11.Text, textBox12.Text, textBox13.Text, textBox14.Text, textBox15.Text, textBox19.Text, textBox18.Text, textBox20.Text, textBox21.Text, textBox22.Text, textBox24.Text, textBox25.Text, textBox26.Text, textBox27.Text, textBox28.Text, textBox29.Text, textBox30.Text, textBox35.Text, textBox34.Text, textBox36.Text, textBox37.Text);
sw.Close();



StreamReader sr = new StreamReader("Was sie gespeichert haben");
while (!sr.EndOfStream)
{

textBox4.Text += sr.ReadLine();
textBox5.Text += sr.ReadLine();
textBox6.Text += sr.ReadLine();
textBox7.Text += sr.ReadLine();
textBox8.Text += sr.ReadLine();
textBox9.Text += sr.ReadLine();
textBox10.Text += sr.ReadLine();
textBox11.Text += sr.ReadLine();
textBox12.Text += sr.ReadLine();
textBox13.Text += sr.ReadLine();
textBox14.Text += sr.ReadLine();
textBox15.Text += sr.ReadLine();
textBox19.Text += sr.ReadLine();
textBox18.Text += sr.ReadLine();
textBox20.Text += sr.ReadLine();
textBox21.Text += sr.ReadLine();
textBox22.Text += sr.ReadLine();
textBox24.Text += sr.ReadLine();
textBox25.Text += sr.ReadLine();
textBox26.Text += sr.ReadLine();
textBox27.Text += sr.ReadLine();
textBox28.Text += sr.ReadLine();
textBox29.Text += sr.ReadLine();
textBox30.Text += sr.ReadLine();
textBox35.Text += sr.ReadLine();
textBox34.Text += sr.ReadLine();
textBox36.Text += sr.ReadLine();
textBox37.Text += sr.ReadLine();
}
{
sr.Close();
}
}
}
}                    

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Stream = neuer Stream
Writer = neuer Writer (Stream)
Schreibe in Writer
Setzte Stream zurück
Reader = neuer Reader (Stream)
Lese aus Reader                    

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            StreamWriter sw = new StreamWriter("Was sie gespeichert haben");
            sw.Write(textBox4.Text);
            sw.Close();
            StreamWriter se = new StreamWriter("f");
            se.Write(textBox6.Text);
            se.Close();
            StreamWriter sb = new StreamWriter("b");
            sb.Write(textBox5.Text);
            sb.Close();
            StreamWriter sk = new StreamWriter("a");
            sk.Write(textBox7.Text);
            sk.Close();
            StreamWriter sh = new StreamWriter("g");
            sh.Write(textBox8.Text);
            sh.Close();
            StreamWriter st = new StreamWriter("k");
            st.Write(textBox9.Text);
            st.Close();
            StreamWriter sz = new StreamWriter("l");
            sz.Write(textBox10.Text);
            sz.Close();
            
 StreamReader sr = new StreamReader("Was sie gespeichert haben");
            while (!sr.EndOfStream)
            {
                textBox4.Text += Console.ReadLine();
            }
            {
                sr.Close();
            }
        
       
            StreamReader sh = new StreamReader("b");
            while (!sh.EndOfStream)
            {
                textBox5.Text += Console.ReadLine();
            }
            {
                sh.Close();
            }
        
            StreamReader sl = new StreamReader("f");
            while (!sl.EndOfStream)
            {
                textBox6.Text += Console.ReadLine();
            }
            {
                sl.Close();
            }
        
            StreamReader sb = new StreamReader("a");
            while (!sb.EndOfStream)
            {
                textBox7.Text += Console.ReadLine();
            }
            {
                sb.Close();
            }
        
            StreamReader sq = new StreamReader("g");
            while (!sq.EndOfStream)
            {
                textBox8.Text += Console.ReadLine();
            }
            {
                sq.Close();
            }
        
            StreamReader sm = new StreamReader("k");
            while (!sm.EndOfStream)
            {
                textBox9.Text += Console.ReadLine();
            }
            {
                sm.Close();
            }
        
            StreamReader sp = new StreamReader("l");
            while (!sp.EndOfStream)
            {
                textBox10.Text += Console.ReadLine();
            }
            {
                sp.Close();
            }
        }                    

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sw.Write(textBox4.Text, textBox5.Text, textBox6.Text, textBox7.Text, textBox8.Text, textBox9.Text....)                    

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sw.WriteLine(textBox1.Text);
sw.WriteLine(textBox2.Text);
...                    

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while (!sr.EndOfStream)
{
  textBox4.Text += sr.ReadLine();
  textBox5.Text += sr.ReadLine();
  ...
}                    

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textBox4.Text += Console.ReadLine();                    

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streamwriter sw=new streamwriter("den namen")
sw.write(textBox1.Text);
sw.close();