File ListView, change name direct in ListView, WPF C# MVVM -

i made little program have files of folder , type in 1 listview. change name of file directly inside of listview.

i made listview textboxes in 1 column , name of file written inside textbox. can change name in textbox now, not change file name. how connection between textbox in listview , method change name? yes little lost here. pretty fresh in mvvm wpf.

my xaml code of listview:

<listview name="lvfiles" grid.column="0" itemssource="{binding fileslist}" selectionmode="single" selecteditem="{binding selectedfiles}" datacontext="{binding }" height="140">    <listview.view>       <gridview x:name="gridfiles">            <gridviewcolumn>                 <gridviewcolumn.celltemplate>                      <datatemplate>                           <checkbox tag="{binding id}" ischecked="{binding relativesource={relativesource ancestortype={x:type listviewitem}}, path=isselected}"/>                      </datatemplate>                 </gridviewcolumn.celltemplate>              </gridviewcolumn>            <gridviewcolumn x:name="filename" header="name">                   <gridviewcolumn.celltemplate>                       <datatemplate>                           <textbox  text="{binding filename, mode=twoway, updatesourcetrigger=propertychanged}"  />                        </datatemplate>                  </gridviewcolumn.celltemplate>           </gridviewcolumn>        <gridviewcolumn x:name="filecreated" header="created" displaymemberbinding="{binding filecreated}" width="auto"/>      <gridviewcolumn x:name="filechanged" header="changed" displaymemberbinding="{binding filechanged}" width="auto"/>    </gridview>  </listview.view> </listview> 

my viewmodel is:

 public class files : viewmodelbase {     private int fileid;     private string filename;     private string filecreated;     private string filechanged;      public string filename     {         { return filename;}         set         {             filename = value;             notifypropertychanged("filename");         }     } 

in view model:

// should store file extension somewhere private string location; private string fileextension;  private string _filename; public string filename {     { return this._filename;      set      {         if (_filename != value)         {             try             {                 var source = path.combine(location, _filename + "." + fileextension);                 var destination = path.combine(location, value + "." + fileextension);                  //if store file extension dot, should remove dot path.combine                  file.move(source, destination);                 _filename = value;                 // invokepropertychanged("filename"); if needed             }             catch (exception e)             {                 messagebox.show(e.tostring(), "error", messageboxbutton.ok, messageboximage.error);             }         }     } }