c# - Write to text files -

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totally new this. depending on event button click need write appropriate text file. however, input data writes same text file. how specify appropriate text file writes , saved.

the coding, identical apart name of text file, i'm using is:

private void btnitemadd_click(object sender, eventargs e) {     string sitem;     string snumber;      if (rdodrinks.checked == false && rdoconfectionary.checked == false)     {         //message remind user select category         messagebox.show("please select category");         txtitem.focus();     }     {         {             if ((rdodrinks.checked == true) && (txtitem.text != "") && (txtitemnumber.text == ""))                  //message remind user enter number                 messagebox.show("please input number");                 txtitemnumber.focus();              if ((txtitem.text != "") && (txtitemnumber.text != ""))             {                 //add item end of list                 lstitems.items.add(string.format("{0, -15} {1, -20}", txtitem.text, txtitemnumber.text));                 txtcount.text = lstitems.items.count.tostring();                 //set focus text box                 txtitem.focus();                  streamwriter sw = file.appendtext("drinks.txt");                 {                     sitem = txtitem.text;                     sw.writeline(sitem);                      snumber = txtitemnumber.text;                     sw.writeline(snumber);                  }                  messagebox.show("details have been saved");                 txtitem.clear();                 txtitemnumber.clear();                  sw.close();             }             else if ((rdoconfectionary.checked == true) && (txtitem.text != "") && (txtitemnumber.text == ""))                 //message remind user enter number                 messagebox.show("please input number");                 txtitemnumber.focus();              if ((txtitem.text != "") && (txtitemnumber.text != ""))             {                 //add item end of list                 lstitems.items.add(string.format("{0, -15} {1, -20}", txtitem.text, txtitemnumber.text));                 txtcount.text = lstitems.items.count.tostring();                 //set focus text box                 txtitem.focus();                  streamwriter sw = file.appendtext("confectionary.txt");                 {                     sitem = txtitem.text;                     sw.writeline(sitem);                      snumber = txtitemnumber.text;                     sw.writeline(snumber);                 }                  messagebox.show("details have been saved");                 txtitem.clear();                 txtitemnumber.clear();                  sw.close();             }         }     } }

you have several issues:

  1. you missing else after first if.

  2. the code below can never end being true.

the 2 if statement collide (the txtitemnumber.text comparison problem). hence never end writing drinks.txt:

if ((rdodrinks.checked == true) && (txtitem.text != "") && (txtitemnumber.text == ""))  ...  if ((txtitem.text != "") && (txtitemnumber.text != ""))

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