datatable - Read XML-File correctly using XmlReader using C# -


i'm writing short program displays me do's. got 2 tabs. 1 tab create new , other tab displaying me details of every selected. have save created do's in xml file. using datatable , dataset , works fine. here code:

private void btn_save_click(object sender, eventargs e)         {             dataset dataset = new dataset();              if (file.exists(@"c:\users\rs\desktop\test\save.xml"))             {                 dataset.readxml(@"c:\users\rs\desktop\test\save.xml");                  dataset.tables[0].rows.add(txt_name.text, combox_priority.text, txt_beginn.text, txt_endsoll.text, txt_endist.text, txt_bemerkungen.text);                 dataset.writexml(@"c:\users\rs\desktop\test\save.xml");             }              else             {                 datatable datatable = new datatable();                 datatable.tablename = "saveinput";                  datacolumn dc1 = new datacolumn("name");                 datacolumn dc2 = new datacolumn("priority");                 datacolumn dc3 = new datacolumn("startdate");                 datacolumn dc4 = new datacolumn("enddatesoll");                 datacolumn dc5 = new datacolumn("enddateist");                 datacolumn dc6 = new datacolumn("comment");                  datatable.columns.add(dc1);                 datatable.columns.add(dc2);                 datatable.columns.add(dc3);                 datatable.columns.add(dc4);                 datatable.columns.add(dc5);                 datatable.columns.add(dc6);                  datatable.rows.add(txt_name.text, combox_priority.text, txt_beginn.text, txt_endsoll.text, txt_endist.text, txt_bemerkungen.text);                  dataset dataset2 = new dataset();                  dataset2.tables.add(datatable);                 dataset2.datasetname = "itodo";                  dataset2.writexml(@"c:\users\rs\desktop\test\save.xml");             }              xmltextreader xmlreader = new xmltextreader(@"c:\users\rs\desktop\test\save.xml");             xmlnodetype nodetype;              while (xmlreader.read())             {                 nodetype = xmlreader.nodetype;                  if (nodetype == xmlnodetype.element)                 {                     if (xmlreader.name == "name")                     {                         xmlreader.read();                         combox_name2.items.add(xmlreader.value);                     }                      else if (xmlreader.name == "priority")                     {                         xmlreader.read();                     }                      else if (xmlreader.name == "startdate")                     {                         xmlreader.read();                     }                      else if (xmlreader.name == "enddatesoll")                     {                         xmlreader.read();                     }                      else if (xmlreader.name == "enddateist")                     {                         xmlreader.read();                     }                      else if (xmlreader.name == "comment")                     {                         xmlreader.read();                     }                 }             }              xmlreader.close();         }

my problem is: want everytime select "to-do" created should display me correct details. working selectedindexchanged. used 

if (combox_name2.selectedindex > -1)             {              }

but think didn't code correctly because details not display. can give me hint? editing code whole afternoon beginner difficult if don't know made error. :)

cheers

not sure you're asking, guessing this:

// associate event-handling method selectedindexchanged event.  combox_name2.selectedindexchanged += new system.eventhandler(combox_name2_selectedindexchanged);  // event-handling method private void combox_name2_selectedindexchanged(object sender, system.eventargs e) {     // work here }

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