This is the image of the design window:
Here is the MainForm.Designer.cs file:
namespace SamsCSharp24
{
partial class ImeObrasca
{
// irrelavent code is omitted, only event subscriptions are left
private void InitializeComponent()
{
// irrelavent code is omitted for brewity
//
// SelectPicture
//
this.SelectPicture.Paint += new System.Windows.Forms.PaintEventHandler(this.SelectPicture_Paint);
this.SelectPicture.Click += new System.EventHandler(this.SelectPicture_Click);
//
// Quit
//
this.Quit.Click += new System.EventHandler(this.Quit_Click);
//
// PictureBox
//
this.PictureBox.MouseLeave += new System.EventHandler(this.PictureBox_MouseLeave);
this.PictureBox.MouseEnter += new System.EventHandler(this.PictureBox_MouseEnter);
//
// btnOptions
//
this.btnOptions.Click += new System.EventHandler(this.btnOptions_Click);
//
// timerClock
//
this.timerClock.Tick += new System.EventHandler(this.timerClock_Tick);
}
#endregion
}
}
Here is the MainForm.cs file:
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;
namespace SamsCSharp24
{
public partial class ImeObrasca : Form
{
public ImeObrasca()
{
InitializeComponent();
// when uncommenting below line, window is not seen in taskbar
// this.ShowInTaskbar = false;
}
// other code is omitted for brewity
private void SelectPicture_Paint(object sender, PaintEventArgs e)
{
// just for fun, change color of a button to light blue
SelectPicture.BackColor = Color.Azure;
}
private void timerClock_Tick(object sender, EventArgs e)
{
// when timer ticks, change label's text into current time of day
staticClock.Text = "Current time of day: " +
DateTime.Now.Hour.ToString() + " : " +
DateTime.Now.Minute.ToString() + " : " +
DateTime.Now.Second.ToString();
}
}
}
Timer control has following properties set via designer:
Enabled = true;
Interval = 1000
Name = timerClick
Tick (event) = timerClock_Tick
As for label, here are the properties also set with designer:
BorderStyle = FixedSingle
Name = staticClock
Autosize = false
Text =
Other properties are default or irrelevant ( like Location or Size )
PROBLEM:
When I run the application ( in Debug mode ), window appears with properly placed controls and with proper look. Every other part of the code works successfully ( picture opening / drawing etc ) but the label remains empty, as initially set in the designer.
After I minimize / maximize the window, the label text is set correct. I have tried to move the part of the window with label "out" of the screen and get it back to see what happens. The text in the label was changed sometimes -> it didn't update correct.
MY EFFORTS TO SOLVE THE PROBLEM:
This is my first time trying out C# and WinForms so I have tried to find some online documentation on timers.
After examining .Designer.cs file I have found out that the timer from toolbox belongs to System.Windows.Forms.Timer class. I found nothing there to help me, since in Remarks section is stated that setting property Enabled to true starts the timer, and setting it to false stops it.
I have tried to put simple message box, and it started popping properly when the window was minimized. When window is in normal state nothing showed, but other parts of the program worked well ( picture opening / drawing / etc ).
After trying to Google for solution / searching here on SO, I have found no concrete solution ( although some suggestions were made, but as I said, they weren't helpful to me ).
QUESTION:
How to modify timer's tick handler, so label's text can be modified every second?
What am I doing wrong?
