向窗体中拖放图片并显示出来，举一反三可实现QQ聊天时，向聊天窗口拖放文件的实例
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
public static bool Var_Style = true;
public static string tempstr="";
private System.Threading.Thread thdAddFile; //创建一个线程
private System.Threading.Thread thdOddDocument; //创建一个线程
public static TreeNode TN_Docu = new TreeNode();//单个文件的节点
private static TreeView Tem_TView;
/// <summary>
/// 在窗体背景中显示被拖放的图片
/// </summary>
/// <param Frm="Form">窗体</param>
/// <param e="DragEventArgs">DragDrop、DragEnter 或 DragOver 事件提供数据</param>
public void SetDragImageToFrm(Form Frm, DragEventArgs e)
{
if (Var_Style == true)
{
e.Effect = DragDropEffects.Copy;
String[] str_Drop = (String[])e.Data.GetData(DataFormats.FileDrop, true);
string tempstr;
Bitmap bkImage;
tempstr = str_Drop[0];
try
{
bkImage = new Bitmap(tempstr);
Frm.Size = new System.Drawing.Size(bkImage.Width 6, bkImage.Height 33);
Frm.BackgroundImage = bkImage;
}
catch { }
}
}
/// <summary>
/// 向TreeView控件添加被拖放的文件夹目录
/// </summary>
/// <param TV="TreeView">TreeView控件</param>
/// <param e="DragEventArgs">DragDrop、DragEnter 或 DragOver 事件提供数据</param>
public void SetDragImageToFrm(TreeView TV, DragEventArgs e)
{
if (Var_Style == false)
{
e.Effect = DragDropEffects.Copy;
String[] str_Drop = (String[])e.Data.GetData(DataFormats.FileDrop, true);
tempstr = str_Drop[0];//获取拖放文件夹的目录
thdAddFile = new Thread(new ThreadStart(SetAddFile)); //创建一个线程
thdAddFile.Start(); //执行当前线程
}
}
public delegate void AddFile();//定义托管线程
/// <summary>
/// 设置托管线程
/// </summary>
public void SetAddFile()
{
this.Invoke(new AddFile(RunAddFile));//对指定的线程进行托管
}
/// <summary>
/// 设置线程
/// </summary>
public void RunAddFile()
{
TreeNode TNode = new TreeNode();//实例化一个线程
Files_Copy(treeView1, tempstr, TNode, 0);
Thread.Sleep(0);//持起主线程
thdAddFile.Abort();//执行线程
}
#region 返回上一级目录
/// <summary>
/// 返回上一级目录
/// </summary>
/// <param dir="string">目录</param>
/// <returns>返回String对象</returns>
public string UpAndDown_Dir(string dir)
{
string Change_dir = "";
Change_dir = Directory.GetParent(dir).FullName;
return Change_dir;
}
#endregion
#region 显示文件夹下所有子文件夹及文件的名称
/// <summary>
/// 显示文件夹下所有子文件夹及文件的名称
/// </summary>
/// <param Sdir="string">文件夹的目录</param>
/// <param TNode="TreeNode">节点</param>
/// <param n="int">标识，判断当前是文件夹，还是文件</param>
private void Files_Copy(TreeView TV, string Sdir, TreeNode TNode, int n)
{
DirectoryInfo dir = new DirectoryInfo(Sdir);
try
{
if (!dir.Exists)//判断所指的文件或文件夹是否存在
{
return;
}
DirectoryInfo dirD = dir as DirectoryInfo;//如果给定参数不是文件夹则退出
if (dirD == null)//判断文件夹是否为空
{
return;
}
else
{
if (n == 0)
{
TNode = TV.Nodes.Add(dirD.Name);//添加文件夹的名称
TNode.Tag = 1;
}
else
{
TNode = TNode.Nodes.Add(dirD.Name);//添加文件夹里面各文件夹的名称
TNode.Tag = 1;
}
}
FileSystemInfo[] files = dirD.GetFileSystemInfos();//获取文件夹中所有文件和文件夹
//对单个FileSystemInfo进行判断,如果是文件夹则进行递归操作
foreach (FileSystemInfo FSys in files)
{
FileInfo file = FSys as FileInfo;
if (file != null)//如果是文件的话，进行文件的复制操作
{
FileInfo SFInfo = new FileInfo(file.DirectoryName "\\" file.Name);//获取文件所在的原始路径
TNode.Nodes.Add(file.Name);//添加文件
TNode.Tag = 1;
}
else
{
string pp = FSys.Name;//获取当前搜索到的文件夹名称
Files_Copy(TV, Sdir "\\" FSys.ToString(), TNode, 1);//如果是文件夹，则进行递归调用
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
return;
}
}
#endregion
public void SetDragHandle(object sender, TreeView TV)
{
switch (Convert.ToInt16(((ToolStripMenuItem)sender).Tag.ToString()))
{
case 1:
{
panel_face.Visible = false;
Var_Style = true;
break;
}
case 2:
{
this.Width = 399;
this.Height = 272;
panel_face.Visible = true;
Var_Style = false;
break;
}
}
}
private void Form1_DragEnter(object sender, DragEventArgs e)
{
SetDragImageToFrm(this, e);
treeView1.Nodes.Clear();
SetDragImageToFrm(treeView1, e);
}
private void Tool_Ima_Click(object sender, EventArgs e)
{
SetDragHandle(sender, treeView1);
}
private void Form1_Load(object sender, EventArgs e)
{
Tem_TView = new TreeView();
Tem_TView = treeView1;
}
string Tem_Dir = "";
private void treeView1_NodeMouseDoubleClick(object sender, TreeNodeMouseClickEventArgs e)
{
if (e.Node.Tag == null)
Tem_Dir = "";
else
Tem_Dir = e.Node.Tag.ToString();
if (Tem_Dir == "")
{
Tem_Dir = UpAndDown_Dir(tempstr) "\\" e.Node.FullPath;
System.Diagnostics.Process.Start(@Tem_Dir);//打开当前文件
}
}
}资源文件列表
╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛.sln , 989
╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛.suo , 18432
╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/bin/Debug/╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛.exe , 12800
╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/bin/Debug/╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛.pdb , 32256
╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/bin/Debug/╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛.vshost.exe , 14328
╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/bin/Debug/╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛.vshost.exe.manifest , 490
╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/Form1.cs , 8027
╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/Form1.Designer.cs , 5193
╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/Form1.resx , 6019
╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/obj/Debug/╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛.csproj.FileListAbsolute.txt , 2892
╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/obj/Debug/╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛.csproj.GenerateResource.Cache , 847
╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/obj/Debug/╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛.exe , 12800
╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/obj/Debug/╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛.Form1.resources , 180
╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/obj/Debug/╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛.pdb , 32256
╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/obj/Debug/╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛.Properties.Resources.resources , 180
╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/Program.cs , 514
╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/Properties/AssemblyInfo.cs , 1398
╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/Properties/Resources.Designer.cs , 2916
╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/Properties/Resources.resx , 5612
╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/Properties/Settings.Designer.cs , 1118
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╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛/╧≥┤░╠σ╓╨═╧╖┼═╝╞¼▓ó╧╘╩╛.csproj , 3777