Statement: this instance is not original and is reprinted from the original! Attachment: 1. Attach a basic console operation file instance: http://blog.sina.com.cn/s/blog_4dfe2d620100d0f8.html,c! 2, C # file File Operations Daquan: http://www.cnblogs.com/jiasongmao/archive/2011/04/27/2031156.html Using system;
Using system. Collections. Generic;
Using system. componentmodel;
Using system. Data;
Using system. drawing;
Using system. LINQ;
Using system. text;
Using system. Windows. forms;
Using system. IO; Namespace windowsformsfilesystem
{
Public partial class form1: Form
{
Public form1 ()
{
Initializecomponent ();
} /// <Summary>
/// When you click the Browse button, open folderbrowserdialog1 and assign the path selected by the user to textbox1
/// </Summary>
/// <Param name = "sender"> </param>
/// <Param name = "E"> </param>
Private void button#click (Object sender, eventargs E)
{
Try
{
If (folderbrowserdialog1.showdialog () = system. Windows. Forms. dialogresult. OK)
{
Textbox1.text = folderbrowserdialog1.selectedpath;
}
}
Catch (exception ee)
{
MessageBox. Show (EE. Message );
}
} /// <Summary>
/// Select a file
/// </Summary>
/// <Param name = "sender"> </param>
/// <Param name = "E"> </param>
Private void button2_click (Object sender, eventargs E)
{
Try
{
If (openfiledialog1.showdialog () = system. Windows. Forms. dialogresult. OK)
{
Textbox2.text = openfiledialog1.filename; // complete file path
}
}
Catch (exception ee)
{ MessageBox. Show (EE. Message );
}
} /// <Summary>
/// File copy operation
/// </Summary>
/// <Param name = "sender"> </param>
/// <Param name = "E"> </param>
Private void button3_click (Object sender, eventargs E)
{
If (! File. exists (textbox2.text ))
{
MessageBox. Show ("select the correct file path ");
Return;
} If (folderbrowserdialog2.showdialog () = system. Windows. Forms. dialogresult. OK)
{
Fileinfo file1 = new fileinfo (textbox2.text );
// MessageBox. Show (file1.name); // file name String destfilepath = folderbrowserdialog2.selectedpath + file1.name; // target Path = target directory + original file name File. Copy (textbox2.text, destfilepath );
MessageBox. Show ("file copied successfully ~ ");
}
} /// <Summary>
/// File Movement
/// </Summary>
/// <Param name = "sender"> </param>
/// <Param name = "E"> </param>
Private void button4_click (Object sender, eventargs E)
{
If (! File. exists (textbox2.text ))
{
MessageBox. Show ("select the correct file path ");
Return;
}
If (folderbrowserdialog2.showdialog () = system. Windows. Forms. dialogresult. OK)
{ Try
{
Fileinfo file1 = new fileinfo (textbox2.text );
// MessageBox. Show (file1.name); // file name // String destfilepath = folderbrowserdialog2.selectedpath + file1.name; // target Path = target directory + original file name
String destfilepath = folderbrowserdialog2.selectedpath + path. getfilename (textbox2.text); // obtain the file directory based on the complete file path. File. Move (textbox2.text, destfilepath ); MessageBox. Show ("file moved successfully ~ ");
}
Catch (exception ee)
{
MessageBox. Show ("file moving failed ~ "+ Ee. Message );
}
}
} /// <Summary>
/// Delete an object
/// </Summary>
/// <Param name = "sender"> </param>
/// <Param name = "E"> </param>
Private void button5_click (Object sender, eventargs E)
{
If (! File. exists (textbox2.text ))
{
MessageBox. Show ("select the correct file path ");
Return;
}
// Use R to indicate the return value of the dialog box
Dialogresult r = MessageBox. Show ("are you sure you want to delete the file? "," File Deletion prompt ", messageboxbuttons. yesnocancel, messageboxicon. Warning );
If (r = system. Windows. Forms. dialogresult. Yes)
{
File. Delete (textbox2.text );
MessageBox. Show ("File deleted ");
} } Private void button6_click (Object sender, eventargs E)
{
If (! Directory. exists (textbox1.text ))
{
MessageBox. Show ("select a directory ~ ");
Return;
} String [] files = directory. getfiles (textbox1.text );
Foreach (string file in files)
{
Listbox1.items. Add (File );
} String [] directories = directory. getdirectories (textbox1.text );
Foreach (string directory in directories)
{
//
}
} /// <Summary>
/// Open the file
/// </Summary>
/// <Param name = "sender"> </param>
/// <Param name = "E"> </param>
Private void button11_click (Object sender, eventargs E)
{
Openfiledialog DLG = new openfiledialog ();
DLG. Filter = "all files | *.*";
If (DLG. showdialog () = system. Windows. Forms. dialogresult. OK)
{
Textbox2.text = DLG. filename;
Fileinfo Fi = new fileinfo (DLG. filename );
MessageBox. Show (Fi. Name + fi. Length + fi. fullname );
}
} /// <Summary>
/// Write characters to the stream to read characters from the byte stream
/// </Summary>
/// <Param name = "sender"> </param>
/// <Param name = "E"> </param>
Private void button10_click (Object sender, eventargs E)
{
// Create streamwriter to prepare for writing
Streamwriter RW = file. createtext ("E: \ hitest.txt ");
// Write content using writeline
RW. writeline ("writing a text stream to the text being created or opened ...");
RW. writeline ("harhatland ");
// Write the buffer content to the file
RW. Flush ();
// Close the RW object
RW. Close (); // Open a text file
Streamreader sr = file. opentext ("E: \ hitest.txt ");
Stringbuilder output = new stringbuilder ();
String RL;
While (RL = Sr. Readline ())! = NULL)
{
Output. append (RL + "\ r \ n ");
}
MessageBox. Show (output. tostring ()); Sr. Close ();
} Private void button8_click (Object sender, eventargs E)
{
Filestream FS = new filestream ("E: \ fstest.txt", filemode. Create );
// Create streamwriter to prepare for writing
Streamwriter RW = new streamwriter (FS, encoding. Default );
// Write content using writeline
RW. writeline ("Microsoft is equal to micro plus soft ..");
RW. writeline ("hahahahahahahahahahahahahahaha and ");
// Write the buffer content to the file
RW. Flush ();
// Close the RW object
RW. Close ();
FS. Close (); FS = new filestream ("E: \ fstest.txt", filemode. Open, fileaccess. readwrite );
Streamreader sr = new streamreader (FS, encoding. Default );
Stringbuilder output = new stringbuilder ();
String RL;
While (RL = Sr. Readline ())! = NULL)
{
Output. append (RL + "\ r \ n ");
}
MessageBox. Show (output. tostring ());
Sr. Close ();
FS. Close ();
}
}
} |
