hey guys i wanna to load a File path in my listBox.
everything is ok
i just have a problem that is when i Close the app and then open it again
loaded files are in the one lane and it recognize them as one item in listBox
i tried to use "\n" , "\r" none of these works...
so what u guys suggest?
(i save user changes in App Setting to read them later)
private void Form1_Load(object sender, EventArgs e)
{
if (Properties.Settings.Default.FileList != string.Empty)
{
fileListBox.Items.Add(Properties.Settings.Default.FileList);
}
UnlockForm f2 = new UnlockForm();
if (Properties.Settings.Default.PasswordCheck == true)
f2.ShowDialog();
else
return;
}
private void button1_Click_1(object sender, EventArgs e)
{
op = new OpenFileDialog();
op.Title = "Select your stuff";
op.Filter = "All files (*.*)|*.*";
if (op.ShowDialog() == DialogResult.OK)
{
fileName = op.FileName;
fileListBox.Items.Add(fileName);
}
Properties.Settings.Default.FileList += fileName+"\n";
Properties.Settings.Default.Save();
}
When creating the property in settings designer:
Set the name to whatever you want, for example Files
Set the type as System.Collections.Specialized.StringCollection
Set the scope as User
If you want to have some default values, use ... in Value cell to edit default value.
Then you can easily set it as DataSource of the ListBox.
listBox1.DataSource = Properties.Settings.Default.Files;
Also to add some values:
Properties.Settings.Default.Files.Add("something");
Properties.Settings.Default.Save();
If you added something to the Files, if you want the ListBox shows the changes, set DataSource to null and then to Files again.
It looks like you have defined your FileList as String in our App Settings. There are two ways you can approach this.
a) Using FileList as Collection.
You can change the Type of FileList to StringCollection in your App Settings. Then, you can add items to your list as follows
fileListBox.Items.AddRange(Properties.Settings.Default.FileList.Cast<string>().ToArray());
b) Using FileList as String.
If you really want to retain Properties.Settings.Default.FileList as string, you would need to split it on the run using your delimiter character (let's say ';')
fileListBox.Items.AddRange(Properties.Settings.Default.FileList.Split(new[] { ';' },StringSplitOptions.RemoveEmptyEntries));
In your case, a collection might be a better approach unless you have specific reasons outside the scope of OP to use string.
Related
I am working on this piece of code that is supposed to open a file dialog and put them into a textbox.
The error is that every time I select more than 1 file while running the app, I get an error in the textbox. If I select only one file, it works fine.
The code is this
private void filePickerButton_Click(object sender, RoutedEventArgs e)
{
// Create the OpenFileDialog object
OpenFileDialog dialog = new OpenFileDialog();
dialog.InitialDirectory = "C:\\Users";
dialog.Multiselect = true;
// Check to see if we have a result
if (dialog.ShowDialog() == true)
{
filePickerTextBox.Text = dialog.FileNames.ToString();
}
else
{
outputTextBox.Text = "Operation cancelled." + "\n" + outputTextBox.Text;
}
}
I am switching between dialog.Filename.ToString(); (to select one file) and dialog.Filenames.ToString(); to select multiple. When using the latter and selecting a file (whether its only one, or more that one, doesn't matter) the my text box shows System.String[]
Anyone know how to fix this?
Thx!
when you are selecting multiple files you get a array of files, as your textbox says: System.String[]
you could use:
filePickerTextBox.Text = string.join(",", dialog.FileNames);
I am working on a piece of software, which compares memes and helps users organize memes on their computer. As a part of this I am using Windows.Forms to build a UI. This UI lets the user add folders to be checked for images, which can be compared to a set of known meme templates.
My issue arises when I try to show the user the found images. To do this I am using a ListView and the property LargeImageList to contain a tuple of the image and the name of the image file.
Here is the piece of code in question:
private void button1_Click(object sender, EventArgs e)
{
int i = 0;
var ic = new ImageCollection();
var fbd = new FolderBrowserDialog();
fbd.Description = "Select meme folder or image.";
if (fbd.ShowDialog() == DialogResult.OK)
{
string[] files = Directory.GetFiles(fbd.SelectedPath);
foreach (var file in files)
{
if (!ic.CheckIfImage(file)) continue;
imageList1.Images.Add(Image.FromFile(file));
}
foreach (var file in files)
{
listView1.Items.Add($"{Path.GetFileNameWithoutExtension(file)}", i++);
}
}
}
This is an example of what the user sees when they first load in a folder. When the user tries to load in another folder this happens. It shows the images from the first folder, with the names of the image files from the second folder.
Does anyone know a fix for this issue? I have tried a variety of options in order to get around the issue. All from trying to clear the ImageList used to contain the images, to trying my hand at controlling when the ListView updates. None of this has worked. I have also tried googling the issue, but with no luck of finding a fix.
Thank you in advance.
If you want to show the content of a single folder at the time, then dispose of the objects in your ImageList.
If you instead want to show the content of more than one folder, you need to specify the new index of the image added. You're instead adding a new Item in the ListView using the same index reference:
int i = 0;
//(...)
listView1.Items.Add($"{Path.GetFileNameWithoutExtension(file)}", i++);
The indexer (i) always starts from 0, thus the ListView Item will use the images in your Imagelist starting from the Image at Index[0] each time. The new images won't ever be shown.
You can use the ImageList.Images.Count value, representing the number of Images already added to the ImageList, as base and increment the indexer starting from this value:
private void button1_Click(object sender, EventArgs e)
{
int i = imageList1.Images.Count;
var ic = new ImageCollection();
var fbd = new FolderBrowserDialog();
fbd.Description = "Select meme folder or image.";
if (fbd.ShowDialog() == DialogResult.OK)
{
foreach (var file in Directory.GetFiles(fbd.SelectedPath))
{
if (!ic.CheckIfImage(file)) continue;
imageList1.Images.Add(new Bitmap(file, true));
listView1.Items.Add($"{Path.GetFileNameWithoutExtension(file)}", i++);
}
}
}
If you allow to remove an Image from the ListView, you should also remove it from the ImageList: this implies that you need to re-index all the ListView Items starting from the Item that follows the one removed.
Remember to dispose of the Images you remove from the ImageList.
So i am attempting to teach myself C#, I have a program that I originally wrote in batch and am attempting to recreate in C# using WPF. I have a button that allows a user to set a directory, that directory selected is then displayed in a text box above a listbox which adds every subfolder, only first level, to the listbox. Now all this works fine but it writes out the entire directory path in the listbox. I have been trying to figure out how to strip the leading directory path off the list box entries for over an hour to no avail. Here is what I have so far:
private void btn_SetDirectory_Click(object sender, RoutedEventArgs e)
{
//Create a folder browser dialog and set the selected path to "steamPath"
var steamPath = new FolderBrowserDialog();
DialogResult result = steamPath.ShowDialog();
//Update the text box to reflect the selected folder path
txt_SteamDirectory.Text = steamPath.SelectedPath;
//Clear and update the list box after choosing a folder
lb_FromFolder.Items.Clear();
string folderName = steamPath.SelectedPath;
foreach (string f in Directory.GetDirectories(folderName))
{
lb_FromFolder.Items.Add(f);
}
}
Now I tried changing the last line to this, and it did not work it just crashed the program:
foreach (string f in Directory.GetDirectories(folderName))
{
lb_FromFolder.Items.Add(f.Substring(f.LastIndexOf("'\'")));
}
I am fairly certain that the LastIndexOf route is probably the right one but I am at a dead end. I apologize if this is a dumb question but this is my first attempt at using C#. Thanks in advance.
This can solve your issue
string folderName = steamPath.SelectedPath;
foreach (string f in Directory.GetDirectories(folderName))
{
// string[] strArr = f.Split('\\');
lb_FromFolder.Items.Add(f.Split('\\')[f.Split('\\').Length-1]);
}
You can use this code:
string folderName = steamPath.SelectedPath;
foreach (string f in Directory.GetDirectories(folderName))
{
lb_FromFolder.Items.Add(f.Remove(0,folderName.Length));
}
I'm building a contact manager program and I have a button that when pressed, updates a listBox of names. Unfortunately, I'm expecting my user to not always be putting the names in before closing the program. I have decided to make new contacts in the list appear as random numbers before a name is entered, so some of my items will be numbers and some will be names. I can't seem to get the names to show up, though. I've been storing the names as strings inside of text files contained inside folders of unique random numbers. What I want is to be able to load all the folder names into the list, then check to see if a name is associated with the item, and if it is, replace the number with the respective name. The following code is as far as I have gotten before I got stumped.
private void button5_Click(object sender, EventArgs e)
{
//populate the list of people
listBox1.Items.Clear();
string[] dirs = Directory.GetDirectories(#"C:\PersonalManager\");
foreach (string dir in dirs)
{
//replace numbered items with names
for (int i = 0; i < listBox1.Items.Count; i++)
{
String Text = Convert.ToString(listBox1.Items[i]);
Text = Text.Replace(File.ReadAllText(#"C:\PersonalManager\"+listBox1.Items[i]+#"\first.txt")); //first.txt is the file containing the name
listBox1.Items[i] = Text;
}
listBox1.Items.Add(Path.GetFileName(dir));
}
}
I'm also pretty sure there is an overload bug in there somewhere, as Visual Studio refuses to compile it. Maybe I should go about this in a different way? What would any of you suggest? I have searched all through Google, and Bing but have yet to figure out what I'm doing wrong. Sorry if my code is a mess, it's my first time.
P.S. I'm a beginner, so I can't wrap my head around too much code without comments every now and then.
I'm pretty sure that this line is breaking your code:
Text = Text.Replace(File.ReadAllText(#"C:\PersonalManager\"+listBox1.Items[i]+#"\first.txt"));
The string.Replace does not have a overload with just one parameter. It has always two.
Just to give you a starting point:
private void button5_Click(object sender, EventArgs e)
{
//populate the list of people
listBox1.Items.Clear();
string[] dirs = Directory.GetDirectories(#"C:\PersonalManager\");
foreach (string dir in dirs)
{
var filePathToRead = Path.Combine(dir, "first.txt");
var allTextOfTheFile = File.ReadAllText(filePathToRead);
// now you can work with the content of the file
listBox1.Items.Add(Path.GetFileName(dir));
}
}
I want to mimic the functionality of the following image using Visual C#:
This I know is not a textbox or a combobox or a richtext (Maybe).
I managed to get the add function, where I get directories and I can select them:
private void button8_Click(object sender, EventArgs e)
{
this.folderBrowserDialog1.ShowNewFolderButton = false;
this.folderBrowserDialog1.RootFolder = System.Environment.SpecialFolder.MyComputer;
DialogResult result = this.folderBrowserDialog1.ShowDialog();
if (result == DialogResult.OK)
{
// the code here will be executed if the user selects a folder
string path = this.folderBrowserDialog1.SelectedPath;
}
}
How do I list them like in the image, should I write it to an ini file, or XML file, and then if so how do I list it in the box as shown.
I also need to detect the OS and have few default folders in the list.
Not quite sure what you want, but the image shows a list with a string and bool value. So you can use something like this:
public class DirOptions
{
string Path = string.Empty;
bool IncludeSubDirs = false;
}
Then you can store your data inside a List<>:
var list = new List<DirOptions>();
To detect OS:
Please see this question Get OS Version / Friendly Name in C#