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Control Dot Net (C #): Drag & Drop

drop files / folders:

first Preparation:

"AllowDrop" property set and log 2 Events:

  1:   public  MainForm () 

  2:  {

  3:  InitializeComponent (); 

  4:   this  textboxDir.AllowDrop.   = true; 

  5:   this  textboxDir.DragOver + = new   DragEventHandler (textboxDir_DragOver); 

  6.   this  textboxDir.DragDrop + = new   DragEventHandler (textboxDir_DragDrop). ; 

  7:}  

second Drag Over Event:

check data format and DragDropEffects contact: (object sender

, DragEventArgs e)

void

 textboxDir_DragOver    2::    

  a  {

   3:          if   (e.Data.GetDataPresent(DataFormats.FileDrop)) 

      4:        { 

      5:            e.Effect = DragDropEffects.Move; 

      6:        } 

      7:    } 

3. Drag-Drop-Event:

Drop auswerten:

      1:      void   textboxDir_DragDrop(  object   sender, DragEventArgs e) 

      2:    { 

      3:          if   (e.Effect == DragDropEffects.Move)   // if move   

  4: { 

  5:   if  (e.Data.GetDataPresent (DataFormats.FileDrop))  / / if FileDrop  

  6: { 

  7:   string  [] dirName = (  string []) e.Data.GetData (DataFormats.FileDrop); 

  8:   if  (dirNames.Length.Equals (1))  / / if just one file  

  9: { 

  10:   if  (MSUtils.FileUtil.dirExists (dirname [0])) 

  11: {. 

  12:   this  textboxDir.Text = dirName [0]; 

  13:  

 } 14:}  

  15:}  

  16:  

 } 17:}