I have Silverlight application i want to show login window before main page InitializeComponent();
this method does not works:
public MainPage()
{
Login log = new Login();
log.Show();
InitializeComponent();
}
Any advice?
Try this:
public MainPage()
{
InitializeComponent();
Loaded += MainPage_Loaded;
}
private void MainPage_Loaded(object sender, RoutedEventArgs e)
{
Visibility = Visibility.Collapsed;
Login log = new Login();
log.Show();
}
Related
I'm building a task list application.
From my main window, I click on the add button. The program generates a new Window,and I compete the form and close it with the complete button.
My listbox in the main window has been populated with the tasks that I have entered.
The problem is, when I do this again, the listbox items are replaced with new items instead of the ones being added.
MainWindow.cs
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
List<Task> allTasks = new List<Task>();
private void Window_Loaded(object sender, RoutedEventArgs e)
{
}
private void addTaskBtn_Click(object sender, RoutedEventArgs e)
{
NewTaskWindow newTaskWindow = new NewTaskWindow();
newTaskWindow.Owner = this;
newTaskWindow.Show();
}
private void editTaskBtn_Click(object sender, RoutedEventArgs e)
{
}
private void searchBtn_Click(object sender, RoutedEventArgs e)
{
}
private void AddUserBtn_Click(object sender, RoutedEventArgs e)
{
}
private void markCompleteButton_Click(object sender, RoutedEventArgs e)
{
}
private void deleteTaskBtn_Click(object sender, RoutedEventArgs e)
{
}
}
NewTaskWindow.cs
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Windows;
namespace Task_Managment
{
public partial class NewTaskWindow : Window
{
Task newTask = new Task();
public NewTaskWindow()
{
InitializeComponent();
}
ObservableCollection<Task> AllTasks = new ObservableCollection<Task>();
ObservableCollection<Task> taskList = new ObservableCollection<Task>();
private void Window_Loaded(object sender, RoutedEventArgs e)
{
string[] taskType = new string[3];
taskType[0] = "Home";
taskType[1] = "College";
taskType[2] = "Work";
CataCombo.ItemsSource = taskType;
}
public void completeBtn_Click(object sender, RoutedEventArgs e)
{
List<Task> allTasks = new List<Task>();
newTask = new Task
{
Title = titletxBx.Text,
Description = DesctxBx.Text,
Priority = prioritytxBx.Text,
Catagory = CataCombo.Text,
taskDate = calander.SelectedDate.Value
};
taskList.Add(newTask);
MainWindow main = Owner as MainWindow;
main.taskListBox.ItemsSource = taskList;
titletxBx.Clear();
prioritytxBx.Clear();
DesctxBx.Clear();
responsibilitytxBx.Clear();
}
private void finishBtn_Click(object sender, RoutedEventArgs e)
{
this.Close();
}
}
}
You need to save the TaskList somewhere, make the tasklist definition public to get acces from the main window and pass it from the main window when you load the new form:
observableCollection<Task> AllTasks = new ObservableCollection<Task>();
public ObservableCollection<Task> taskList = new ObservableCollection<Task>();
public NewTaskWindow(ObservableCollection<Task> taskList)
{
InitializeComponent();
this.tasklist = tasklist
}
After that, you only need to retrieve and send it from the main to the new window
private void addTaskBtn_Click(object sender, RoutedEventArgs e)
{
NewTaskWindow newTaskWindow = new NewTaskWindow(tasklist);
newTaskWindow.Owner = this;
newTaskWindow.Show();
tasklist = newTaskWindow.tasklist;
}
In the main window you must initialize it for the first run if not you will get an error:
ObservableCollection<Task> taskList = new ObservableCollection<Task>();
public MainWindow()
{
InitializeComponent();
}
....
Obviously this only save for the time you have the program open, when you close the program it will lose all the info. So if you are interested in that also, save in a file and load from it.
So I link delegate from Form2 to This_Hide() fuction in Form1, then i link delegate from Form3 to delegate in Form2(which link to function in Form1 as I said) but I get confused that it still work although Form2 is CLOSED when I making instance of Form3. If Form.Close() method closes Form2 and dispose it how delegate from Form3 can still call function(delegate) from Form2..?
namespace TestingMachine
{
public delegate void FxDelegate();
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void button1_Click(object sender, EventArgs e)
{
Form2 fr2 = new Form2();
fr2.Delegate_Father_Hide = new FxDelegate(This_Hide);
fr2.Show();
}
public void This_Hide()
{
this.Hide();
}
}
}
namespace TestingMachine
{
public partial class Form2 : Form
{
public FxDelegate Delegate_Father_Hide;
public Form2()
{
InitializeComponent();
}
private void Form2_Load(object sender, EventArgs e)
{
}
private void button1_Click(object sender, EventArgs e)
{
Form3 fr3 = new Form3();
fr3.Delegate_Hide_Grandfather = new FxDelegate(Hide_Grandfather);
fr3.Show();
this.Close();
}
public void Hide_Grandfather()
{
Delegate_Father_Hide();
}
}
}
namespace TestingMachine
{
public partial class Form3 : Form
{
public FxDelegate Delegate_Hide_Grandfather;
public Form3()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
Delegate_Hide_Grandfather();
}
}
}
Hello is there something similar to AllowNavigation like in WinForms?
My search didn't yield any satisfying result.
Basically I'm trying to open a webpage inside new wpf window and stop user from clicking random links on that webpage and navigating further.
Saw something with
void browser1_Navigating(object sender, NavigatingCancelEventArgs e)
{
e.Cancel = true;
}
Rest of the code is :
public Popup_webpage(string ime)
{
InitializeComponent();
browser1.LoadCompleted += browser1_LoadCompleted;
browser1.Navigating += browser1_Navigating;
string uri = "www.google.com"
browser1.Navigate(new Uri(uri, UriKind.Absolute));
}
void browser1_LoadCompleted(object sender, NavigationEventArgs e)
{
browser1.Visibility = Visibility.Visible;
}
But it just makes my webpage not display ?
Thanks
Try this:
Once you have loaded your page, then you assign the browser_Navigating event handler.
public Popup_webpage(string ime)
{
InitializeComponent();
browser1.LoadCompleted += browser1_LoadCompleted;
string uri = "www.google.com"
browser1.Navigate(new Uri(uri, UriKind.Absolute));
browser1.Navigating += browser1_Navigating;
}
void browser1_LoadCompleted(object sender, NavigationEventArgs e)
{
browser1.Visibility = Visibility.Visible;
}
void browser1_Navigating(object sender, NavigatingCancelEventArgs e)
{
e.Cancel = true;
}
Im pretty new to programming, but im very eager to get more into this stuff, and in particular, c#. I have a made some code for an autotyper (spam bot if i may), only to be used as a goal for me to create. Essentially, what i want the program to do, is as following:
When i start my Form1, the global variable "_timerValue" is set to
1000
When i hit Start button, the text from the textbox on will be sent at
the interval of "_timerValue"
When i hit the Speed button, Form2 will show.
When i hit very fast, "_timerValue" is set to 5000 (testing purposes)
Form1 code:
public partial class Form1 : Form
{
static class TimerIntervalValue
{
Form2 f2 = new Form2();
TimerIntervalValue = f2._timerValue;
}
public Form1()
{
InitializeComponent();
f2._timerValue = "1000";
}
public void timer1_Tick(object sender, EventArgs e)
{
SendKeys.Send(textBox1.Text);
}
private void button1_Click(object sender, EventArgs e)
{
timer1.Enabled = true;
}
private void button1_MouseDown(object sender, MouseEventArgs e)
{
MessageBox.Show(f2._timerValue);
timer1.Interval = Convert.ToInt32(f2._timerValue);
if (timer1.Enabled == false)
{
timer1.Enabled = true;
textBox1.Enabled = false;
button1.Text = ("Stop");
}
else if (timer1.Enabled == true)
{
timer1.Enabled = false;
textBox1.Enabled = true;
button1.Text = ("Start");
}
}
private void button2_Click(object sender, EventArgs e)
{
Form2 form2 = new Form2();
form2.Show();
}
}
Form2 code:
public partial class Form2 : Form
{
public string TimerValue;
public string _timerValue
{
get { return TimerValue; }
set { TimerValue = value; }
}
public Form2()
{
InitializeComponent();
}
public void button1_Click(object sender, EventArgs e)
{
Form2 frm2 = new Form2();
frm2._timerValue = "5000";
}
}
I originally tried to create a Form2 instance just under "InitializeComponent();" in Form1, but that didnt seem to be accessible through the other funtions.
I just know its something very simple like im using the wrong class to create the Form2 instance or something like that ...
Anyway, thank you in advance
Just mark TimerValue and _timerValue as static. Then you don't need to use
Form2 f2 = new Form2(); or Form2 frm2 = new Form2();
anymore. In Form 1, just use Form2._timerValue instead of f2._timerValue. In Form 2, just change:
public void button1_Click(object sender, EventArgs e)
{
_timerValue = "5000";
}
I am using visual studio 2012 (windows form application) and I have two forms, one with a label and the other with a button. I want it so that when you click the button the label on the other form goes up by one. I already have:
Label1 = Label1 + 1
I just need to know how to make the connection with the two forms. Maybe call a function?
Btw I am new to the program and script so in simple terms plz.
Here is a sample I create for you. Add Fomr2 Like this:
public partial class Form2 : Form
{
private void button1_Click(object sender, EventArgs e)
{
Form1.Instance.Controls.Find("label1", true).First().Text = "Some thing";
}
}
And Form1:
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
_Instance = this;
}
private static Form1 _Instance;
public static Form1 Instance
{
get { return _Instance; }
set { Instance = value; }
}
private void button1_Click(object sender, EventArgs e)
{
new Form2().Show();
}