This small program shows how to open a txt file on the hard drive, is there a way I can have a procedure that when I click a button a txt file pops up, may someone help me with it or how I can go about it....
This is the procedure below
private void button1_Click(object sender, EventArgs e)
{
OpenFileDialog of = new OpenFileDialog();
of.ShowDialog();
textBox1.Text = of.FileName;
}
May somebody tell me what I can do or give some material to read kind of new in C#
Assuming that you like opening notepad with the text file showing on it, you could use:
System.Diagnostics.Process.Start(of.FileName);
This will open the file using the default text editor of the computer.
EDIT
According to your comment, you should the do it like this:
private void button1_Click(object sender, EventArgs e)
{
System.Diagnostics.Process.Start(#"C:\dir1\dir2\yourfile.txt");
}
Obviusly, you should replace that with the path for your specific file.
Try
MessageBox.Show(File.ReadAllText(of.FileName));
After it, try to learn each component of the statement, what it does.
BTW,
You also need:
if (of.ShowDialog() == DialogResult.OK)
before that, to avoid displaying message in case user clicks Cancel.
Based on the clarification, this is pretty straightforward. Just create a new form class that contains a textbox (and probably a Close button). You'll want a property on the form that will set the textbox. You can launch the this form from your button event handler (the one you have in your example) like this:
using(var myForm = new TextBoxForm()) {
myForm.TextFileContents = <file contents>
myForm.ShowDialog();
}
As for reading in the file contents, you'll want to use File.ReadAllText() as described in Daniel's answer. See the MSDN documentation for more on that. I'll leave the remaining details as an exercise to the reader.
Related
I am currently working on updating a C# project that makes use of WinForms. One of the minor changes I want to make is as follows.
The project has a Form that currently allows the user to click a Button, which then opens a Folder Browser window where they can select a folder for the project to retrieve information from. The selected directory is entered into a TextBox after being selected. However, clicking on the TextBox also opens up a Folder Browser window. You are also currently unable to manually enter text into the TextBox.
What I want to do is (hopefully) pretty simple: I want the user to be able to enter a directory manually into the TextBox and for the project to accept that text input, and for the TextBox to not open a Folder Browser form upon being clicked.
Some other things to keep in mind:
I am not familiar with all the ins and outs of WinForms, so I could very well be missing something simple that I could do.
I am also in the process of completely restructuring the project, so if this is not possible in WinForms, but is possible in, say, WPF, that would not be a major obstacle for me in this case.
Here is the code for the Button, or at least the pertinent part, as a reference. txtProjectDir is the TextBox in question. Not much else is done with the TextBox in the code except for this part.
private void btnBrowse_Click(object sender, EventArgs e)
{
if (chooseProjectFolderDialog.ShowDialog() == DialogResult.OK)
{
clbConvertProjects.Items.Clear();
clbProjects.Items.Clear();
txtProjectDir.Text = chooseProjectFolderDialog.SelectedPath;
cur_projDir = txtProjectDir.Text;
Update: I have made some changes based on the input of several users (thanks to all of you, by the way). This is what the pertinent part of the code looks like now:
private void btnBrowse_Click(object sender, EventArgs e)
{
if (chooseProjectFolderDialog.ShowDialog() == DialogResult.OK)
{
clbConvertProjects.Items.Clear();
clbProjects.Items.Clear();
cur_projDir = txtProjectDir.Text;
I also had to change the TextBox to not be read-only, as well as remove a reference to the above method from its Event properties. Now it is able to accept user input, and doesn't open a Folder Browser when clicked into.
The only problem is this: if I only enter text directly into the TextBox, instead of selecting a folder via the browser popup, the program doesn't seem to properly accept the input (i.e., no information is being collected from the directory). Obviously, I still need to make the program accept user input, as it currently doesn't.
Update 2: After more suggestions (again, thanks guys) and good old trial-and-error, I have re-inserted the line txtProjectDir.Text = chooseProjectFolderDialog.SelectedPath; as removing it from the method had undesired effects on the program's functionality. I am still having an issue with the program accepting the user's manual input into the TextBox, though.
Update 3: As per #blaze_125's recommendation, I am going to have to create a new event for the TextBox when the user Leaves it. Thank you all for the help, I appreciate it!
However, clicking on the TextBox also opens up a Folder Browser window.
The only event for the TextBox is Action -> Click, which is set to btnBrowse_Click
What I want to do is (hopefully) pretty simple: I want the user to be able to enter a directory manually into the TextBox and for the project to accept that text input, and for the TextBox to not open a Folder Browser form upon being clicked.
If you don't want that event(aka action->click) to happen, then you must remove the text btnBrowse_Click from that textbox and leave it blank. That will remove the event you currently have linked to your textbox click.
There will be an even linked to the text box txtProjectDir to check this select the text box and in the properties select the lightning bolt.
I would assume that the even is a click into the textbox however.
If this is the case you probably want to remove this.
Now in terms of how to accept what is in the text box as the value you just want to reference the text and that is in the textbox whitch would be txtProjectDir.Text
private void btnBrowse_Click(object sender, EventArgs e)
{
if (chooseProjectFolderDialog.ShowDialog() == DialogResult.OK)
{
clbConvertProjects.Items.Clear();
clbProjects.Items.Clear();
cur_projDir = txtProjectDir.Text;
I am new to C#. How can i possible upload a file like pdf and image in a particular folder using C# windows gui? Do i need to add library for it to work in viewing it directly to the gui program? Also, i need to allow the user to upload multiple files. Thanks in advance !
If you want to browse and display picture inside a picture box on your windows form you can try something like this:
Design of the form:
Code:
public PictureDisplay()
{
InitializeComponent();
}
private void btnBrowse_Click(object sender, EventArgs e)
{
OpenFileDialog newDialog = new OpenFileDialog();
if (newDialog.ShowDialog() == DialogResult.OK)
{
try
{
picBoxDisplay.Load(newDialog.FileName);
picBoxDisplay.SizeMode = PictureBoxSizeMode.Zoom;
}
catch
{
MessageBox.Show("Wrong file type!", "Error");
}
}
}
Code opens file dialog and if you choose a file of image type it's displayed to fit into a picture box while maintaining resolution ratio. If any other type is chosen MessageBox pops and makes you aware of an error.
Results:
Hopefully it covers the image upload to GUI part. For any further help, please explain the question better, thanks!
Open file png/.
http://msdn.microsoft.com/ru-ru/library/system.windows.forms.openfiledialog(v=vs.110).aspx
View Pictures
http://msdn.microsoft.com/ru-ru/library/system.windows.forms.picturebox.aspx
I have a small application that needs to save to contents of a rich text box as a text file upon a button click. What I currently have is
//save button logic
private void saveBtn1_Click(object sender, EventArgs e)
{
//set up new SaveFileDialog
SaveFileDialog saveFileDialog1 = new SaveFileDialog();
saveFileDialog1.Filter = "Text Files (*.txt)|*.txt";
saveFileDialog1.Title = "Save a text File";
//prompt the user
DialogResult result = saveFileDialog1.ShowDialog();
//if they select save write the contents of the RTB to a text file
if (result == DialogResult.OK)
{
System.IO.File.WriteAllText(saveFileDialog1.FileName, richTextBox1.Text);
}
}
It seems like a pretty straight forward piece of code, but I can't figure out why the dialog opens twice.
Just expanding Servy's comment into an answer because I suspect his diagnosis is correct. I'm going to give some simple suggestions for diagnosing/finding the problem. Firstly, you can put a break point in the event handler, if you're taken into that event handler twice then that's obviously the problem. The other solution (without even running) is simply to right click on the method name and select "find all references" this will give you list of all the references to the this method within your code. I'm guessing you will find 3; the method itself, the place where you expect to be registering it, and the place you were you don't. Remove the one and your problem will go away.
Shortest answer: you called the save dialog() twice in your code. Remove the second one and your issue will clear up.
Because you are used twice.
Thisa is simple excample for you
SaveFileDialog save = new SaveFileDialog();
save.DefaultExt = "zip";
save.Filter = "zip faylı (*.zip)|*.7z|Hamısı(*.*)|*.*";
save.ShowDialog(); // this is first using
if (save.ShowDialog() == DialogResult.OK) // and second using save.ShowDialog()
{
// yours code here
}
I am creating a small app for personal use that allows me to clean my lists of objects. I am using a variety of filters to get a finalized list in a multiline text box. When i am finished, I use the following code to copy to the textbox to the clipboard.
#region COPY BUTTON
private void button3_Click(object sender, EventArgs e)
{
Clipboard.SetText(textBox_ListDestination.Text);
}
#endregion
What i would like to do now is add another button that allows me to save this same text to a .txt file using the SaveFileDialog. Can anyone help me with this? I am assuming I would use Streaming of some type, but I am out of my element here. Any help would be appreciated.
try
File.WriteAllText (TargetFilePath, textBox_ListDestination.Text);
For more information including sample code see MSDN.
If you want to obtain TargetFilePath via a SaveFileDialog see MSDN.
UPDATE
Sample code using SaveFileDialog:
if(saveFileDialog1.ShowDialog() == DialogResult.OK)
{
File.WriteAllText (saveFileDialog1.FileName, textBox_ListDestination.Text);
}
If the dialog click Make new folder, just start editing the name just create a folder and click OK, OK dialogrezalt returns, but in the property SelectedPath he will name the folder New folder, then there is the name of the default
This happens because when we create, just edit and click OK, this property is not updated and the method ShowDialog () returns.
How fix this problem?
Thank you!
I had the same problem - if you created a new Folder with the FolderBrowseDialog, the .SelectedPath showed "xxx\NewFolder" not whatever new name the user had given.
The problem went away once I explicitly gave the command, prior to displaying the dialog,
MyFolderBrowser.ShowNewFolderButton = True
I failed to simulate the problem you are describing, I have tested it:
Create a new Form Form1 add button1 to it and in the button1.Click handler copy this code:
private void button1_Click(object sender, EventArgs e)
{
using (FolderBrowserDialog dialog = new FolderBrowserDialog())
{
dialog.ShowNewFolderButton = true;
if (dialog.ShowDialog(this) == System.Windows.Forms.DialogResult.OK)
{
string path = dialog.SelectedPath;
Console.WriteLine(path);//will not print new folder if the file renamed.
}
}
}
It worked as expected either by creating a new folder and press enter two times. or by creating a new folder and click ok.
Are you using a third party UI Controls, theams...
Edit: You stated:
Yes, if this sample run at windows application, it work correct. But
my application is Excel add-in. And FolderBrowserDialog work that I
write at started post
So you are using a third party "Excel add-in", When using a third party with FolderBrowserDialog or OpenFileDialog.. you may notice a strange behavior depending on the third party..
The solution for the problem you described is either by disabling ShowNewFolderButton or implement your own custom OpenFileDialog.