Develop Reference

ZipFile extracting issue

screenshot
So this is a method that gets the directory of a file (is a .JDCEDFile but its is just renamed .zip file)
With this method i try to rename het file and extract it to a specified folder.
And show its contents into the right textboxes.
This method fails at Extracting process and i don't understand why.
public void OpenEncodedFile(string path)
{
// Variabelen + verwerking
string defaultpath = Application.StartupPath + #"\temp";
string defaultzip = path;
string defaultzipRename = defaultzip.Replace(".JDCEDFile", ".zip");
File.Move(defaultzip, defaultzipRename);
ZipFile.ExtractToDirectory(defaultzipRename, defaultpath);
Input.Text = File.ReadAllText(defaultpath + #"\tempData.txt");
Password.Text = File.ReadAllText(defaultpath + #"\tempPass.txt");
File.Move(defaultzipRename, defaultzip);
}

"path" has to be wrong, I just tested it and it worked fine.

private void openEncodedFileToolStripMenuItem_Click(object sender, EventArgs e)
{
if (openEncodedFileDialog.ShowDialog() == DialogResult.OK)
{
OpenEncodedFile(openEncodedFileDialog.FileName);
}
}
This the the code.

Dragging files into rich textbox resutls icon created

I read and tried multiple examples in related postings.
No matter what, the problem remains:
When I drag file into the RichBox, I end up with file icon which I don't want and file name string which I do want.
If I drag 2 or more files, only 1st file icon comes, other files do not bring icons.
The question is: how not to get icon into Rich Box when I drag file into it?
private void RT1_DragDrop(object sender, DragEventArgs e)
{
string s="";
if(e.Data.GetDataPresent(DataFormats.FileDrop))
{
Array a = (Array)e.Data.GetData(DataFormats.FileDrop);
foreach (string s1 in a)
{
RT1.Text = RT1.Text + s1 + "\n";
this.Activate();
OpenFile(s1);
}
}
}
private void OpenFile(string sFile)
{
StreamReader StreamReader1 = new StreamReader(sFile);
RT2.Text = RT2.Text + "\n" + StreamReader1.ReadToEnd();
StreamReader1.Close();
}

Download and save xml file on user local machine

On my application I have a button used to save save an xlm file on specific uri indicated on my code. but I would like to give the user the possibility to save this file where he wants.
page.xaml
page.cs
private void Bt_Export_Click(object sender, RoutedEventArgs e)
{
CIRCUIT _selectedCircuit = (CIRCUIT)Lb_Circuits.SelectedItem;
busyIndicator.IsBusy = true;
this.DBContext.SaveXmlFile(_selectedCircuit.CIR_CIRCUIT, _action =>
{
if (!_action.HasError)
{
}
busyIndicator.IsBusy = false;
}, null);
}
//
public void SaveXmlFile(string XMlString)
{
XmlDocument XmlCircuit = new XmlDocument();
XmlCircuit.LoadXml(XMlString);
XmlCircuit.Save("C:/Users/izdoudou/Ciruit" + DateTime.Now.Date.ToString("yyMMddHHmm") + ".xml");
string ts= XmlCircuit.BaseURI;
}
Could you tell me if it is possible integrate this functionnality with silverlight, and how can I do it?
Kind regards,

You can use a FolderBrowserDialog for the purpose.
string foldername=#"C:\Users\izdoudou\Ciruit";
DialogResult result = folderBrowserDialog1.ShowDialog();
if( result == DialogResult.OK )
{
folderName = folderBrowserDialog1.SelectedPath;
}
In your code change
XmlCircuit.Save("C:/Users/izdoudou/Ciruit" + DateTime.Now.Date.ToString("yyMMddHHmm") + ".xml");
to
XmlCircuit.Save(foldername +"\\"+ DateTime.Now.Date.ToString("yyMMddHHmm") + ".xml");
Hope it helps.

Image renaming program in C#/.NET

I am working on a .NET program that is intended to iterate through a selected directory and allow the renaming of image files after displaying the images. I feel through my code that around 98% of the program is done, but I used a while loop to wait for the pressing of a button so as to allow for the renaming of the image file. Yet, the while loop freezes the program every time the while loop is iterated.
How can I either system("pause"); like in C++ to have the while loop pause without freezing the program and creating an infinite loop or how can I have the while loop paused automatically until a button is pressed?
Here is a tidbit of the code for the loop:
paused = true;
bool X = false;
label2.Text = "please choose a file name and press next";
//while statement
while (X == false)
{
if (paused == false)
{
//Renames filename
string newFileName = filenameTextbox.Text;
//Adds filename to selected directory where user wishes to send file to
string outputFile = destinationDirectory + "\\" + intCounter + fileNameOfficial;
//Pause statement to move to next operand..
//Copies post iterated file to selected directory
File.Copy(inputFile, outputFile, true);
X = true;
}
}
The code in its entirety is below.
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;
using System.Collections;
namespace recursionBitches
{
public partial class fileSorter : Form
{
bool paused = true;
public fileSorter()
{
InitializeComponent();
}
private void browseFrom_Click(object sender, EventArgs e)
{
//Warning dialouge for selecting a large file.
MessageBox.Show("Warning, before selecting the origination file, it is important to note that choosing too large of a directory (for example, my documents or 'C://') more than likely will cause this program to freeze. ");
MessageBox.Show("You have been warned");
//Choose the originating dir path. This dir path is to be later sorted using recursion.
//Once the originating dir path is chosen, it is added to the label above the button.
if (fromBrowse.ShowDialog(
) == DialogResult.OK)
{
this.originationLabel.Text = fromBrowse.SelectedPath;
}
}
private void browseTo_Click(object sender, EventArgs e)
{
//Choose the send to dir path. This dir path is to later have the files that are sorted sent to it.
//Once the to dir path is chosen, it is added to the label above the button.
if (toBrowse.ShowDialog(
) == DialogResult.OK)
{
this.sendingLabel.Text = toBrowse.SelectedPath;
}
}
private void sortButton_Click(object sender, EventArgs e)
{
string fileExtension = "*" + fileExtensionTextbox.Text;
//Check from path to ensure they are set to a user defined path.
int intCounter = 1;
if (originationLabel.Text != "From")
{
//Check to path to ensure it is set to a user defined path.
if (sendingLabel.Text != "To")
{
//Recursion stuff...
string sourceDirectory = fromBrowse.SelectedPath;
string destinationDirectory = toBrowse.SelectedPath;
//Sends origination path to function ae this is a function call. its num = 8675309... I think its name is Jenny.
recursiveRecursion(sourceDirectory, destinationDirectory, fileExtension, intCounter);
}
else
{
//Message box that says it is required to
MessageBox.Show("You dun goofed");
}
}
else
{
//Yup, it's a message box.
//That was an unhelpful comment....
/Aalmost as unhelpful as this comment
// This is what happens when I program stoned.
MessageBox.Show("You dun goofed");
}
//Grabs the path of the originating directory.
//After the originating directory path is choosen, send the path to a recursion function
//which will search the folders and sort the files in the dir. path.
}
private void originationLabel_Click(object sender, EventArgs e)
{
MessageBox.Show("Silly user, I am a label. I dont even click");
}
private void sendingLabel_Click(object sender, EventArgs e)
{
MessageBox.Show("Silly user, I am a label. I dont even click");
}
//Recursion function which grabs the directory path, uses a foreach loop to iterate through the files.
//Whilst each file is iterated through, have the recursive function select the files by extension and copy
//the files to another directory chosen by the user.
private void recursiveRecursion(string sourceDirectory, string destinationDirectory, string fileExtension, int intCounter)
{
//Select files Path and stuff
string[] filenames = Directory.GetFiles(sourceDirectory, fileExtension);
//foreach (string directoryName in directoryNames)
string[] directoryNames = Directory.GetDirectories(sourceDirectory);
//dir is the file name, as in for each file name in directory do the thing in this recursion loop thingy.
foreach (string fileName in filenames)
{
try
{
if (File.Exists(fileName))
{
//Don't use recursion. It is a file
//copy files here and stuff.
intCounter++;
//For the destination file ae dir2 to work, I need to get the file name from the file path.
//Currently dir is the file path.
//Enter code here to get the file name from the file path.
//Displays on label name of the file.
this.filesortTextbox.Text = "the file being copied is " + fileName;
//Gets filename from path
string fileNameOfficial = Path.GetFileName(fileName);
//Enters text of filename into filename textbox
filenameTextbox.Text = fileNameOfficial;
//For copying purposes, adds filename to originating directory path.
string inputFile = sourceDirectory + "\\" + fileNameOfficial;
//Assigns image from the origination directory.
Image img = Image.FromFile(inputFile);
// Shows image in the image viewer...
iteratedPicturebox.Image = img;
iteratedPicturebox.Width = img.Width;
iteratedPicturebox.Height = img.Height;
//Allows the user to change file name, after changing filename allows
//user to go to next file to rename. This is awesome for files...
paused = true;
bool X = false;
label2.Text = "Please choose a file name and press next.";
//while statement
while (X == false)
{
if (paused == false)
{
//Renames filename
string newFileName = filenameTextbox.Text;
//Adds filename to selected directory where user wishes to send file to.
string outputFile = destinationDirectory + "\\" + intCounter + fileNameOfficial;
//Pause statement to move to next operand..
//Copies post iterated file to selected directory.
File.Copy(inputFile, outputFile, true);
X = true;
}
}
}
else
{
//This really has an unknown pourpose, admittably keeping here for good luck...
Console.WriteLine("{0} is not a valid file or directory.", fileName);
}
}
catch (Exception e)
{
//What process failed you ask? Good question mate.
Console.WriteLine("The process failed: {0}", e.ToString());
}
}
//Long story short for each directory contained in the list of directories.
//Do the stuff listed in the foreach statement.
foreach (string directoryName in directoryNames)
{
try
{
if (Directory.Exists(directoryName))
{
//If this is a directory, send the thing through itself.
// MessageBox.Show("now going through the "+ directoryName + " directory");
recursiveRecursion(directoryName, destinationDirectory, fileExtension, intCounter);
this.directoryIterated.Text = "The Current Directory The Files Are being copied from is " + directoryName;
}
}
catch (Exception e)
{
Console.WriteLine("The process failed: {0}", e.ToString());
}
}
}
private void fileExtensionTextbox_TextChanged(object sender, EventArgs e)
{
}
private void label1_Click(object sender, EventArgs e)
{
}
private void directoryIterated_Click(object sender, EventArgs e)
{
MessageBox.Show("I am a label. I don't even click");
this.directoryIterated.Text = "You pressed me.";
}
private void kill_Click(object sender, EventArgs e)
{
Close();
}
private void filesortTextbox_Click(object sender, EventArgs e)
{
MessageBox.Show("I am a label. I don't even click.");
this.directoryIterated.Text = "You pressed me.";
}
private void iteratedPicturebox_Click(object sender, EventArgs e)
{
MessageBox.Show("I am a picture box, I don't even click.");
}
private void nextButton_Click(object sender, EventArgs e)
{
if (paused == false)
{
paused = true;
}
else
{
paused = false;
}
}
}
}

Consider using a BackgroundWorker for your processing loop. This allows you to process this on the background thread and won't freeze your main UI thread (which is what is happening)

Rather than trying to stop execution, I would display a dialog box:
Create form eg: FileRenameDialog.
Add public properties to form you can use to set From: text, etc.
Create instance of form. eg: FileRenameDialog reuseme
Whenever the user needs to make a selection, populate the text in the dialog. eg: reuseme.Source = "The current file being copied...";
Display the dialog to the user as modal eg: var dlgResult = reuseme.ShowDialog(this);
Do what you need to with the result eg: if (dlgResult == DialogResult.OK) {...do stuff with the properties of reuseme...}

Best way to create a folder and upload a image to that folder in ASP.NET?

Any code examples on how i must go about creating a folder say "pics" in my root and then upload a images from the file upload control in into that "pics" folder?
If you don't want to give me all the code, i will be happy with a nice link also to show me how this will be done in VB.NET (C# is also ok).

Try/Catch is on you :)
public void EnsureDirectoriesExist()
{
// if the \pix directory doesn't exist - create it.
if (!System.IO.Directory.Exists(Server.MapPath(#"~/pix/")))
{
System.IO.Directory.CreateDirectory(Server.MapPath(#"~/pix/"));
}
}
protected void Button1_Click(object sender, EventArgs e)
{
if (FileUpload1.HasFile && Path.GetExtension(FileUpload1.FileName) == ".jpg")
{
// create posted file
// make sure we have a place for the file in the directory structure
EnsureDirectoriesExist();
String filePath = Server.MapPath(#"~/pix/" + FileUpload1.FileName);
FileUpload1.SaveAs(filePath);
}
else
{
lblMessage.Text = "Not a jpg file";
}
}

here is how I would do this.
protected void OnUpload_Click(object sender, EventArgs e)
{
var path = Server.MapPath("~/pics");
var directory = new DirectoryInfo(path);
if (directory.Exists == false)
{
directory.Create();
}
var file = Path.Combine(path, upload.FileName);
upload.SaveAs(file);
}

Create Folder inside the Folder and upload Files
DirectoryInfo info = new DirectoryInfo(Server.MapPath(string.Format("~/FolderName/") + txtNewmrNo.Text)); //Creating SubFolder inside the Folder with Name(which is provide by User).
string directoryPath = info+"/".ToString();
if (!info.Exists) //Checking If Not Exist.
{
info.Create();
HttpFileCollection hfc = Request.Files;
for (int i = 0; i < hfc.Count; i++) //Checking how many files in File Upload control.
{
HttpPostedFile hpf = hfc[i];
if (hpf.ContentLength > 0)
{
hpf.SaveAs(directoryPath + Path.GetFileName(hpf.FileName)); //Uploading Multiple Files into newly created Folder (One by One).
}
}
}
else
{
ClientScript.RegisterStartupScript(this.GetType(), "alert", "alert('This Folder already Created.');", true);
}