I am facing a problem in my winforms app I am building in Visual Studio 2019. My app has 8 forms and I constructed a new class in which I want to save the name of the forms that users visited through a list and save them in a .txt file. I am providing you the pieces of code that I am trying to implement.
Code of one of 8 forms
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Data.SQLite;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Speech.Synthesis;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace Delfoi_Tourist_Guide
{
public partial class Welcome : Form
{
SQLiteConnection connection;
private SpeechSynthesizer speech = new SpeechSynthesizer();
public Welcome()
{
InitializeComponent();
User_History.HistList.Add(this.Name);
User_History.SaveHistory();
}
private void Welcome_Load(object sender, EventArgs e)
{
String conn = "Data Source=Delfoidb1.db;Version=3";
connection = new SQLiteConnection(conn);
connection.Open(); //or Create Database
}
private void Timer1_Tick(object sender, EventArgs e)
{
label1.Show();
label2.Show();
button1.Visible = true;
button2.Visible = true;
timer2.Enabled = true;
timer1.Enabled = false;
}
private void button1_Click(object sender, EventArgs e)
{
if (speech.State == SynthesizerState.Speaking)
{
speech.Pause();
}
Form2 form2 = new Form2();
form2.Show();
this.Visible = false;
}
private void button6_Click(object sender, EventArgs e)
{
Application.Exit();
}
private void timer2_Tick(object sender, EventArgs e)
{
speech.SelectVoice("Microsoft Stefanos");
speech.SpeakAsync(label2.Text);
timer2.Enabled = false;
}
private void button2_Click(object sender, EventArgs e)
{
if (speech.State == SynthesizerState.Speaking)
{
speech.Pause();
}
Form8 form8 = new Form8();
form8.Show();
this.Visible = false;
}
private void aboutToolStripMenuItem1_Click(object sender, EventArgs e)
{
MessageBox.Show("Developed by Ανδρέας Κρεούζος(ΜΠΠΛ20040) and Δημήτρης Γιογάκης(ΜΠΠΛ20008)");
}
private void helpToolStripMenuItem_Click(object sender, EventArgs e)
{
//Implement try - catch to avoid exception specifically for url error
try
{
Help.ShowHelp(this, "_tmphhp/Delfoi_Tourist_Guide_Help.chm", HelpNavigator.KeywordIndex, "Topic 1");
}
catch (Exception exception)
{
MessageBox.Show(exception.ToString());
}
}
private void aboutToolStripMenuItem_Click(object sender, EventArgs e)
{
if (speech.State == SynthesizerState.Speaking)
{
speech.Pause();
}
Welcome welcome = new Welcome();
welcome.Show();
this.Visible = false;
}
private void έξοδοςToolStripMenuItem_Click(object sender, EventArgs e)
{
Application.Exit();
}
}
}
Code of the separate class that saves the data as txt
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace Delfoi_Tourist_Guide
{
public static class User_History
{
public static List<string> HistList = new List<string>();
public static void SaveHistory()
{
SaveFileDialog saveFileDialog = new SaveFileDialog();
if (saveFileDialog.ShowDialog() == DialogResult.OK)
{
string path = saveFileDialog.FileName;
StreamWriter sw = new StreamWriter(path);
sw.WriteLine(HistList);
sw.Close();
}
}
}
}
My problem is that I can't transfer the data (placed on the InitializeComponent) from forms to my class. I am getting my txt file with nothing in it. My data is actually saved on my public static list but I can't transfer it next to the rest of my User_History class.
Any ideas on how to accomplish this???
You can try this SaveHistory() method
public static void SaveHistory()
{
SaveFileDialog saveFileDialog = new SaveFileDialog();
if (saveFileDialog.ShowDialog() == DialogResult.OK)
{
string path = saveFileDialog.FileName;
using (StreamWriter writer = new StreamWriter(path, false))
{
foreach (string history in HistList)
{
writer.WriteLine(history);
}
}
}
}
Related
I'm not very versed in coding, let's say this is some kind of project I started without knowing anything about coding.
I have a Button which should read the selection in the comboBox and then open a specific form.
I've tried using following the switch (comboBox1.SelectedText)
While that didn't quite work, I tried another approach:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
namespace The_Liberion_Magnicite
{
public partial class Form1 : The_Liberion_Magnicite.Character
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void textBox1_TextChanged(object sender, EventArgs e)
{
}
private void label1_Click(object sender, EventArgs e)
{
}
private void button1_Click(object sender, EventArgs e)
{
comboBox1.SelectedText.ToString();
{ if (comboBox1.SelectedText.ToString() == "Shiroichi Kazami (PTS)")
{
this.Hide();
Shiro1 CShiro1 = new Shiro1();
CShiro1.Show();
}
else if (comboBox1.SelectedText.ToString() == "Shiroichi Kazami (ATS)")
{
this.Hide();
Shiro2 CShiro2 = new Shiro2();
CShiro2.Show();
}
else if (comboBox1.SelectedText.ToString() == "Akari Hondo")
{
this.Hide();
AkariHondo CAkari = new AkariHondo();
CAkari.Show();
}
else if (comboBox1.SelectedText.ToString() == "Aboa Sekihara")
{
this.Hide();
AobaSeki CAoba = new AobaSeki();
CAoba.Show();
}
}
}
}
}
I'm in some dire need for help ;)
I want to call the NewTab() function from another form. But it doesn't work. I'm new to C# and Programming and need help.
Form1:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using CefSharp;
using CefSharp.WinForms;
namespace Browser
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
ChromiumWebBrowser chrome;
private void Window_Load(object sender, EventArgs e)
{
CefSettings settings = new CefSettings();
Cef.Initialize(settings);
txtUrl.Text = "https://google.com";
chrome = new ChromiumWebBrowser(txtUrl.Text);
chrome.Parent = tabControl.SelectedTab;
chrome.Dock = DockStyle.Fill;
chrome.AddressChanged += Chrome_AddressChanged;
chrome.TitleChanged += Chrome_TitleChanged;
}
private void Chrome_AddressChanged(object sender, AddressChangedEventArgs e)
{
this.Invoke(new MethodInvoker(() =>
{
txtUrl.Text = e.Address;
}));
}
private void buttonRefresh_Click(object sender, EventArgs e)
{
ChromiumWebBrowser chrome = tabControl.SelectedTab.Controls[0] as ChromiumWebBrowser;
if (chrome != null)
{
chrome.Refresh();
}
}
private void buttonNavigate_Click(object sender, EventArgs e)
{
ChromiumWebBrowser chrome = tabControl.SelectedTab.Controls[0] as ChromiumWebBrowser;
if(chrome != null)
{
chrome.Load(txtUrl.Text);
}
}
private void buttonForward_Click(object sender, EventArgs e)
{
ChromiumWebBrowser chrome = tabControl.SelectedTab.Controls[0] as ChromiumWebBrowser;
if (chrome != null)
{
if (chrome.CanGoForward)
{
chrome.Forward();
}
}
}
private void buttonBack_Click(object sender, EventArgs e)
{
ChromiumWebBrowser chrome = tabControl.SelectedTab.Controls[0] as ChromiumWebBrowser;
if (chrome != null)
{
if(chrome.CanGoBack)
{
chrome.Back();
}
}
}
private void Window_FormClosing(object sender, FormClosingEventArgs e)
{
Cef.Shutdown();
}
public void btnNewTab_Click(object sender, EventArgs e)
{
NewTab("https://google.com");
}
public void NewTab(string url)
{
TabPage tab = new TabPage();
tab.Text = "New Tab";
tabControl.Controls.Add(tab);
tabControl.SelectTab(tabControl.TabCount - 1);
ChromiumWebBrowser chrome = new ChromiumWebBrowser(url);
chrome.Parent = tab;
chrome.Dock = DockStyle.Fill;
txtUrl.Text = url;
chrome.AddressChanged += Chrome_AddressChanged;
chrome.TitleChanged += Chrome_TitleChanged;
}
private void Chrome_TitleChanged(object sender, TitleChangedEventArgs e)
{
this.Invoke(new MethodInvoker(() =>
{
tabControl.SelectedTab.Text = e.Title;
}));
}
private void closeTabToolStripMenuItem_Click(object sender, EventArgs e)
{
tabControl.Controls.Remove(tabControl.SelectedTab);
}
private void openMultipleTabsToolStripMenuItem_Click(object sender, EventArgs e)
{
Form2 form2 = new Form2();
form2.Show();
}
}
}
Form2:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace Browser
{
public partial class Form2 : Form
{
public Form2()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
Form1 form1 = new Form1();
form1.NewTab("https://google.com");
}
}
}
I try to make a Webbrowser with special features. I use CefSharp for this. Sorry for the ugly Code I'm new to C# and Programming. Got most of this from a Youtube tutorial. I'm trying to make another window that you can open with a menustrip that lets you open multiple tabs at once. But for now, I don't even get one new Tab opened. It could be nice if you help me with this.
You create a new instance of Form1 but you don't show it.
Try this:
private void button1_Click(object sender, EventArgs e)
{
Form1 form = new Form1();
form.NewTab("https://google.com");
form.Show();
}
I'm curious on how to enable cookies in geckofx, so when I restart the app it shows the cookies when I load the app all it shows is null here is the code to the form have a look and I really need help it might be something to do with proxy.
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using Gecko;
using MaterialSkin;
namespace FoxChatBETA
{
public partial class Form1 : MaterialSkin.Controls.MaterialForm
{
public Form1()
{
InitializeComponent();
var materialSkinManager = MaterialSkinManager.Instance;
materialSkinManager.AddFormToManage(this);
materialSkinManager.Theme = MaterialSkinManager.Themes.LIGHT;
materialSkinManager.ColorScheme = new ColorScheme(Primary.BlueGrey800, Primary.BlueGrey900, Primary.BlueGrey500, Accent.LightBlue200, TextShade.WHITE);
Xpcom.Initialize(Environment.CurrentDirectory);
GeckoPreferences.User["plugin.state.flash"] = true;
GeckoPreferences.User["network.cookie.thirdparty.sessionOnly"] = true;
GeckoPreferences.User["browser.xul.error_pages.enabled"] = true;
GeckoPreferences.User["media.navigator.enabled"] = true;
GeckoPreferences.User["media.navigator.permission.disabled"] = true;
GeckoPreferences.User["browser.cache.disk.enable"] = true;
GeckoPreferences.User["places.history.enabled"] = false;
GeckoPreferences.Default["extensions.blocklist.enabled"] = false;
}
private void Form1_Load(object sender, EventArgs e)
{
geckoWebBrowser1.Navigate(prefer not to show);
}
private void reloadToolStripMenuItem_Click(object sender, EventArgs e)
{
geckoWebBrowser1.Reload();
}
private void custemnumberToolStripMenuItem_Click(object sender, EventArgs e)
{
}
private void menuStrip1_ItemClicked(object sender, ToolStripItemClickedEventArgs e)
{
}
private void reloadToolStripMenuItem_Click_1(object sender, EventArgs e)
{
geckoWebBrowser1.Navigate(pfere not to show again);
}
private void devToolsToolStripMenuItem_Click(object sender, EventArgs e)
{
}
private void cONFIGToolStripMenuItem_Click(object sender, EventArgs e)
{
geckoWebBrowser1.Navigate("about:config");
}
}
}
You have set network.cookie.thirdparty.sessionOnly to true, which according to the documenation makes them only for the current session. The default value is false.
Third-party cookies are allowed within the limits of the general cookie acceptance settings but only retained for the current session.
https://developer.mozilla.org/pl/docs/Cookies_Preferences_in_Mozilla
in my current project ,i have a form which contains 2 command buttons named COPY and Cancel
if i click COPY button it is copying 3000 files from source directory to a destination directory ,at the same time if click the Cancel Button , it should cancel the copy and exit the form. is there any way to do so?
i applied the solution but got errors. i have the following code
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Threading;
namespace WindowsFormsApplication8
{
public partial class Form1 : Form
{
private volatile bool _continue = false;
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
_continue = true;
System.Threading.ThreadStart ts = new ThreadStart(print_number);
System.Threading.Thread t = new Thread(ts);
t.Start();
}
private void print_number()
{
for (int i = 1; i <= 10000; i++)
{
textBox1.Text = Convert.ToString(i);
if (_continue == false)
{
return;
}
//Thread.Sleep(2000);
}
}
private void button2_Click(object sender, EventArgs e)
{
_continue = false;
Close();
}
}
}
Example:
private volatile bool _continue = false;
private void CopyClicked(Object sender, EventArgs e)
{
_continue = true;
System.Threading.ThreadStart ts = new ThreadStart(CopyFiles);
System.Threading.Thread t = new Thread(ts);
t.Start();
}
private void CopyFiles(){
List<String> list = GetFileNames();
foreach( String f in list )
{
if ( _continue == false )
{
return;
}
CopyFile(s); //examples...
}
}
private void CancelClicked(Object sender, EventArgs e)
{
_continue = false;
Close();
}
I have two forms, one is for the text editor, and the second is for the search form.
In my Form1 I have defined the GetRichTextBox() function. It works there, how could I retrieve it to Form2 (and the other stuff)?
My Form1:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace TextEditor
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private RichTextBox GetRichTextBox()
{
RichTextBox rtb = null;
TabPage tp = tabControl1.SelectedTab;
if (tp != null)
{
rtb = tp.Controls[0] as RichTextBox;
}
return rtb;
}
private void newToolStripMenuItem_Click(object sender, EventArgs e)
{
TabPage tp = new TabPage("doc");
RichTextBox rtb = new RichTextBox();
rtb.Dock = DockStyle.Fill;
tp.Controls.Add(rtb);
tabControl1.TabPages.Add(tp);
}
private void cutToolStripMenuItem_Click(object sender, EventArgs e)
{
GetRichTextBox().Cut();
}
private void copyToolStripMenuItem_Click(object sender, EventArgs e)
{
GetRichTextBox().Copy();
}
private void pasteToolStripMenuItem_Click(object sender, EventArgs e)
{
GetRichTextBox().Paste();
}
private void undoToolStripMenuItem_Click(object sender, EventArgs e)
{
GetRichTextBox().Undo();
}
private void redoToolStripMenuItem_Click(object sender, EventArgs e)
{
GetRichTextBox().Redo();
}
private void openToolStripMenuItem_Click(object sender, EventArgs e)
{
OpenFileDialog openFD = new OpenFileDialog();
string Chosen_File = "";
openFD.InitialDirectory = "C:";
openFD.Title = "Open a Text File";
openFD.FileName = "";
openFD.Filter = "Text Files|*.txt|Word Documents|*.doc";
if (openFD.ShowDialog() != DialogResult.Cancel)
{
Chosen_File = openFD.FileName;
TabPage tab = new TabPage() { Text = System.IO.Path.GetFileName(Chosen_File) };
tabControl1.TabPages.Add(tab);
tabControl1.SelectedTab = tab;
RichTextBox box = new RichTextBox { Parent = tab, Dock = DockStyle.Fill };
box.LoadFile(Chosen_File, RichTextBoxStreamType.PlainText);
}
}
private void saveToolStripMenuItem_Click(object sender, EventArgs e)
{
SaveFileDialog saveFD = new SaveFileDialog();
string saved_file = "";
saveFD.InitialDirectory = "C:";
saveFD.Title = "Save a Text File";
saveFD.FileName = "";
saveFD.Filter = "Text Files|*.txt|Word Documents|*.doc";
if (saveFD.ShowDialog() != DialogResult.Cancel)
{
saved_file = saveFD.FileName;
GetRichTextBox().SaveFile(saved_file, RichTextBoxStreamType.PlainText);
MessageBox.Show("Your file has been successfully saved!", "Success", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
private void exitToolStripMenuItem_Click(object sender, EventArgs e)
{
if (MessageBox.Show("Are you sure?", "Exit", MessageBoxButtons.OKCancel) == DialogResult.OK)
{
Application.Exit();
}
}
private void closeTabToolStripMenuItem_Click(object sender, EventArgs e)
{
TabPage active_tab = tabControl1.SelectedTab;
tabControl1.TabPages.Remove(active_tab);
}
private void searchToolStripMenuItem_Click(object sender, EventArgs e)
{
var search = new Form2();
search.ShowDialog();
}
}
}
And ofcourse, my Form2:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace TextEditor
{
public partial class Form2 : Form
{
public Form2()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
int index = 0; string temp = richTextBox1.Text; richTextBox1.Text = ""; richTextBox1.Text = temp;
while (index < richTextBox1.Text.LastIndexOf(textBox1.Text))
{
richTextBox1.Find(textBox1.Text, index, richTextBox1.TextLength, RichTextBoxFinds.None);
richTextBox1.SelectionBackColor = Color.Orange;
index = richTextBox1.Text.IndexOf(textBox1.Text, index) + 1;
}
}
}
}