TREEVIEW拖拽对应修改目录

附件: http://files.cnblogs.com/xe2011/TreeView_Drag_Directory%E6%93%8D%E4%BD%9C.rar

 

 

TREEVIEW拖拽对应修改目录

 

 

 

using System.IO;

 

 

private static string RootPath = @"D:\Administrator\Documents\TestData";         //返回 D:\Administrator\Documents         private string myPath = GetDirectoryParentPath(RootPath);          private void Form1_Load(object sender, EventArgs e)         {             treeView1.AllowDrop = true;             treeView1.HideSelection = false;             DirectoryToTreeNode(RootPath,treeView1);         }

 

 

//添加目录到TREEVIEW

private void DirectoryToTreeNode(string RootDir , TreeView treeView)         {             treeView.Nodes.Clear();             DirectoryInfo di = new DirectoryInfo(RootDir );             TreeNode rootNode = new TreeNode(di.Name);             GetDirs(di.GetDirectories(), rootNode);             treeView.Nodes.Add(rootNode);             rootNode.Expand();         }

 

private void GetDirs(DirectoryInfo[] subDirs, TreeNode treeNode)         {             foreach (DirectoryInfo d in subDirs)             {                 TreeNode node = new TreeNode(d.Name, 0, 0);                 DirectoryInfo[] subSubDirs = d.GetDirectories();                 GetDirs(subSubDirs, node);                 treeNode.Nodes.Add(node);             }         }

 

 

 

/*问题             C:\Program Files\\\             C:\Program Files///          */         private bool DirectoryExists(string path)         {             DirectoryInfo d = new DirectoryInfo(path);             return d.Exists;         }

 

//目录 D:\Administrator\Documents\TestData         //返回 D:\Administrator\Documents         private static string GetDirectoryParentPath(string path)         {             DirectoryInfo d = new DirectoryInfo(path);             return d.Parent.FullName;         }

 

//目录 D:\Administrator\Documents\TestData         //返回 TestData         private string ExtractDirectoryName(string path)         {             DirectoryInfo d = new DirectoryInfo(path);             return d.Name;         }

 

//移动文件夹

//C:\Windows\a     //C:\Windows\b     //实际运行过程 Directory.Move( "C:\Windows\a" , "C:\Windows\b\a");     private bool MoveDirectory(string sourceDirName, string destDirName)     {         destDirName = String.Format("{0}\\{1}", destDirName, ExtractDirectoryName(sourceDirName));         //源目录存在 但目标目录不存在         if (DirectoryExists(sourceDirName) && !DirectoryExists(destDirName))          {             Directory.Move(sourceDirName, destDirName);             //源目录不存在 但目标目录存在             if (!DirectoryExists(sourceDirName) && DirectoryExists(destDirName))                  return true;         }         else             return false;         return false;     }

 

 

 

 TreeView拖拽操作

private void treeView1_DragOver(object sender, DragEventArgs e)         {             TreeNode node2 = treeView1.GetNodeAt(treeView1.PointToClient(new Point(e.X, e.Y)));             //节点2不存在             //节点1 = 节点2             //节点1 往它的父一级节点拖拽             if ((node2 == null) ||(node1 == node2)|| (node1.Parent == node2))             {                 treeView1.SelectedNode = node1;                 SetTreeNodeColorDefault();                 e.Effect = DragDropEffects.None;                 return;             }             else             {                 e.Effect = DragDropEffects.Move;                 treeView1.SelectedNode = node2;                 SetTreeNodeColorBlue();                   //当一个父节点往它的子节点中拖拽时                 while (node2.Parent != null)                 {                     if (node2.Parent == node1)                     {                         e.Effect = DragDropEffects.None;                         return;                     }                     node2 = node2.Parent;                 }             }         }

 

private void treeView1_DragDrop(object sender, DragEventArgs e)         {             //拖拽的节点指向目标的 这个目标节点             TreeNode node2 = treeView1.GetNodeAt( treeView1.PointToClient(new Point(e.X, e.Y)) );             if (node1 != node2)             {                 if (node1.Parent != node2)                 {                     string dir1 = myPath + "\\" + node1.FullPath;                     string dir2 = myPath + "\\" + node2.FullPath;                       textBox1.Text = dir1;                     textBox2.Text = dir2;                                        if (MoveDirectory(textBox1.Text, textBox2.Text))                     {                     //MessageBox.Show("Finished");                           // Remove drag node from parent                         if (node1.Parent == null)                             treeView1.Nodes.Remove(node1);                         else                             node1.Parent.Nodes.Remove(node1);                         node2.Nodes.Add(node1);                         treeView1.SelectedNode = node1;                         node2.Expand();                     }                                      }             }         }

 

 设置节点颜色

private   void  treeView1_MouseDown( object  sender, MouseEventArgs e)         {               SetTreeNodeColorDefault();         }

 

private void SetTreeNodeColorBlue()         {             if (node1 != null)             {                 node1.BackColor = Color.FromArgb(51, 153, 255);//蓝色                  node1.ForeColor = Color.White;             }         }

 

private void SetTreeNodeColorDefault()         {             if (node1 != null)             {                 node1.BackColor = SystemColors.Window;                 node1.ForeColor = Color.Black;             }         }

 

来自为知笔记(Wiz)

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转载于:https://www.cnblogs.com/xe2011/p/3435666.html