Text over Progressbar - Question - C# Discussion Boards

teknolog12322-Sep-09 1:56

22-Sep-09 1:56

Hi there,

I use a custom progressbar with text in a custom control and I update the text with a timer.The text is shown and everything works but the text over the progressbar mess up instead of being updated.When I minimize the main form and maximize it back, it updates. All of my attempts(using update(),refresh() and invalidate()) are useless.Could you please tell me what I should do?
note: I use the same control on another form but this time not in a custom control and it works like a charm

Re: Custom progressbar doesn't update

Programm3r22-Sep-09 3:21

Programm3r

22-Sep-09 3:21

Is it possible to post some of the code?

Regards,

The only programmers that are better C# programmers, are those who look like this -> Green Alien | [Alien]

Programm3r
My Blog: ^_^

Re: Custom progressbar doesn't update

teknolog12322-Sep-09 4:02

teknolog123

22-Sep-09 4:02

//this code is in a custom control's class and the custom control is in main form

DateTime dt_starttime; //this takes the start time from a button on mainform when clicked
TimeSpan ts_elapsed;

public void tmrSure_Tick(object sender, EventArgs e) //this is triggered from the main form
{
// taking the elapsed time
DateTime dt_now = DateTime.Now;
ts_elapsed = dt_now.Subtract(dt_starttime);

theBestProgressBarEver1.CenterText = string.Format("{0:00}:{1:00}", ts_elapsed.Hours, ts_elapsed.Minutes); //CenterText is to show text
}
//normally the code is spreaded,I collected the pieces together to be able to post
thanks for your interest

Re: Custom progressbar doesn't update

Programm3r22-Sep-09 21:21

Programm3r

22-Sep-09 21:21

Try setting the text within the progressbar with this piece of code: http://www.codeproject.com/Messages/3207094/Text-over-Progressbar[^], I think it will work!

The only programmers that are better C# programmers, are those who look like this -> Green Alien | [Alien]

Programm3r
My Blog: ^_^

Re: Custom progressbar doesn't update

teknolog12323-Sep-09 9:26

teknolog123

23-Sep-09 9:26

thanks Programm3r
I solved the issue by putting ProgressBar.Refresh() on top in the timer event before the text property of the progressbar gets changed. But before, I had put it in the bottom of timer and didn't work. Anyway, thanks for dealing.

Binary Serialization of Dictionary

FJJCENTU22-Sep-09 1:28

FJJCENTU

22-Sep-09 1:28

I want to Serialize a Dictionary in Binary format but I get an error message telling that this objecto is not Serializable, is there any way of do it or I need to create my own dictionary class.

Regards

Re: Binary Serialization of Dictionary

Henry Minute22-Sep-09 1:44

Henry Minute

22-Sep-09 1:44

There is an article here on CP about serializing Dictionaries (amongst other things). Unfortunately, for you, it uses XML Serialization. In case it may offer you some clues, here is a link Yet Another XML Serialization Library for the .NET Framework[^]

Henry Minute

Do not read medical books! You could die of a misprint. - Mark Twain
Girl: (staring) "Why do you need an icy cucumber?"
“I want to report a fraud. The government is lying to us all.”

Text over Progressbar - Question

Programm3r22-Sep-09 1:25

Programm3r

22-Sep-09 1:25

Hi all,

I found the following code, that allows one to write a string on a ProgressBar ... Only thing is that I can't get it to work Confused | :confused:

Can anyone else make it work, and if so ... what am I doing wrong?

// call the method
SetProgressBarText(progressBar1, null, ProgressBarTextLocation.Centered, Color.Black, SystemFonts.DefaultFont);

// Set the ProgressBar Text method
private void SetProgressBarText(System.Windows.Forms.ProgressBar Target,
    //The target progress bar
string Text,
    //The text to show in the progress bar
ProgressBarTextLocation Location,
    //Where the text is to be placed
System.Drawing.Color TextColor,
    //The color the text is to be drawn in
System.Drawing.Font TextFont
    //The font we use to draw the text
)
{
    //Make sure we didn't get a null progress bar
    if (Target == null)
        throw new ArgumentException("Null Target");

    //Now we can get to the real code
    //Check to see if we are to add in the percent
    if (string.IsNullOrEmpty(Text))
    {
        //We are to add in the percent meaning we got a null or empty Text
        //We give text a string value representing the percent
        int percent = (int)(((double)(Target.Value - Target.Minimum) / (double)(Target.Maximum - Target.Minimum)) * 100);
        Text = percent.ToString() + "%";
    }
    //Now we can add in the text
    //gr will be the graphics object we use to draw on Target
    using (Graphics gr = Target.CreateGraphics())
    {
        gr.DrawString(Text,
        TextFont,
            //The font we will draw it it (TextFont)
        new SolidBrush(TextColor),
            //The brush we will use to draw it
            //Where we will draw it
        new PointF(
            // X location (Center or Left)
        Location == ProgressBarTextLocation.Left ? 5 :
            //Left side
        progressBar1.Width / 2 - (gr.MeasureString(Text,
            //Centered
        TextFont).Width / 2.0F),
            // Y Location (This is the same regardless of Location)
        progressBar1.Height / 2 - (gr.MeasureString(Text,
        TextFont).Height / 2.0F)));
    }
}

public enum ProgressBarTextLocation
{
    Left,
    Centered
}

Many thanks in advance
Kind regards,

The only programmers that are better C# programmers, are those who look like this -> Green Alien | [Alien]

Programm3r
My Blog: ^_^

Re: Text over Progressbar - Question

Programm3r22-Sep-09 1:36

Programm3r

22-Sep-09 1:36

Nevermind

.... just through the method call within a Timer Tick and everything works ....

The only programmers that are better C# programmers, are those who look like this -> Green Alien | [Alien]

Programm3r
My Blog: ^_^

Re: Text over Progressbar - Question

firda-cze18-Apr-10 22:21

firda-cze

18-Apr-10 22:21

public class ProgressLabel: ProgressBar {
	private static StringFormat sfCenter = new StringFormat() {
		Alignment = StringAlignment.Center, LineAlignment = StringAlignment.Center };
	private Color textColor = DefaultTextColor;
	private string progressString;
	public ProgressLabel() { SetStyle(ControlStyles.AllPaintingInWmPaint, true); }
	protected override void OnCreateControl() {
		progressString = null;
		base.OnCreateControl();
	}
	protected override void WndProc(ref Message m) {
		switch(m.Msg) {
		case 15: if(HideBar) base.WndProc(ref m);
			else {
				ProgressBarStyle style = Style;
				if(progressString == null) {
					progressString = Text;
					if(!HideBar && style != ProgressBarStyle.Marquee) {
						int range = Maximum-Minimum;
						int value = Value;
						if(range > 42949672) { value = (int)((uint)value>>7); range = (int)((uint)range>>7); }
						if(range > 0) progressString = string.Format(progressString.Length == 0 ? "{0}%" : "{1}: {0}%",
						value*100/range, progressString);
					}
				}
				if(progressString.Length == 0) base.WndProc(ref m);
				else using(Graphics g = CreateGraphics()) {
					base.WndProc(ref m);
					OnPaint(new PaintEventArgs(g, ClientRectangle));
				}
			}
			break;
		case 0x402: goto case 0x406;
		case 0x406: progressString = null;
			base.WndProc(ref m);
			break;
		default:
			base.WndProc(ref m);
			break;
		}
	}
	protected override void OnPaint(PaintEventArgs e) {
		Rectangle cr = ClientRectangle;
		RectangleF crF = new RectangleF(cr.Left, cr.Top, cr.Width, cr.Height);
		using(Brush br = new SolidBrush(TextColor))
			e.Graphics.DrawString(progressString, Font, br, crF, sfCenter);
		base.OnPaint(e);
	}
	public bool HideBar {
		get { return GetStyle(ControlStyles.UserPaint); }
		set { if(HideBar != value) { SetStyle(ControlStyles.UserPaint, value); Refresh(); } }
	}
	public static Color DefaultTextColor {
		get { return SystemColors.ControlText; }
	}
	public Color TextColor {
		get { return textColor; }
		set { textColor = value; }
	}
	public override string Text {
		get { return base.Text; }
		set { if(value != Text) { base.Text = value; progressString = null; } }
	}
	public override Font Font {
		get { return base.Font; }
		set { base.Font = value; }
	}
}

Re: Text over Progressbar - Question

Scott Sherin28-May-10 4:15

Scott Sherin

28-May-10 4:15

Thanks firda, been looking for that code all over.

how to use a macro in c#

Ajithevn22-Sep-09 0:58

Ajithevn

22-Sep-09 0:58

how to use the same macro of excel in c#
Private Sub Worksheet_Activate()
Range("A1").Select
End Sub

Re: how to use a macro in c#

Programm3r22-Sep-09 1:39

Programm3r

22-Sep-09 1:39

Hi,

See How To Create an Excel Macro by Using Automation from Visual C# .NET[^] ... hope I understood the question correctly....

Kind regards,

The only programmers that are better C# programmers, are those who look like this -> Green Alien | [Alien]

Programm3r
My Blog: ^_^

Re: how to use a macro in c#

Ajithevn22-Sep-09 2:29

Ajithevn

22-Sep-09 2:29

the problem is im having a xls file and im opening it using workbook.open() and i select cell A10 and close it next time when i open the file i want the focus back on A1. i.e always the file is open the focus should be on cell A1 for that i used the macro which i stated in the previos thread. but i feel it would be better if i can do that also in the application.
below is the code

private void button1_Click(object sender, EventArgs e)
{
openexcel();
}

private static void openexcel()
{
Excel.Application xlApplication = new Excel.Application();
Excel.Workbooks xlBooks;
Excel.Worksheet xls;

xlBooks = xlApplication.Workbooks;
xlBooks.Open(Application.StartupPath + @"\ExcelFile01.xls", Type.Missing, false, Type.Missing, Type.Missing,
Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing,
Type.Missing, Type.Missing, Type.Missing);

xls = xlApplication.ActiveWorkbook.Worksheets[2] as Excel.Worksheet;
xls.Visible = Excel.XlSheetVisibility.xlSheetHidden;
xls = xlApplication.ActiveWorkbook.ActiveSheet as Excel.Worksheet;
xls.Rows.AutoFit();
//todo
focus back to cell A1

xlApplication.Visible = true;
System.Runtime.InteropServices.Marshal.ReleaseComObject(xls);
System.Runtime.InteropServices.Marshal.ReleaseComObject(xlBooks);
System.Runtime.InteropServices.Marshal.ReleaseComObject(xlApplication);

}

Re: how to use a macro in c#

Programm3r22-Sep-09 2:50

Programm3r

22-Sep-09 2:50

Hi,

Wouldn't something like Cells(YourRow,YourColumn).Select work?

Kind regards,

The only programmers that are better C# programmers, are those who look like this -> Green Alien | [Alien]

Programm3r
My Blog: ^_^

Re: how to use a macro in c#

Programm3r22-Sep-09 2:53

Programm3r

22-Sep-09 2:53

Have a look Developers Guide to the Excel 2007 Application Object[^], most of it is in VB.NET, but that's just syntax ....

I'm sure that you'll find something useful there ....

The only programmers that are better C# programmers, are those who look like this -> Green Alien | [Alien]

Programm3r
My Blog: ^_^

Re: how to use a macro in c#

thecodedemon23-Sep-09 13:30

thecodedemon

23-Sep-09 13:30

Is this going to be the same excel file you'll be opening every time? You could put an 'AutoOpen' macro in the excel file (which would run anytime the file is opened, just enable macros when you open it) to do all this preliminary stuff you're doing in C#. It would be much easier in VBA anyway.

The Code Demon Rises.

Re: how to use a macro in c#

Programm3r22-Sep-09 2:57

Programm3r

22-Sep-09 2:57

This should do it: Range.Activate Method[^] (Activates a single cell, which must be inside the current selection. To select a range of cells, use the Select method.)

Kind regards,

The only programmers that are better C# programmers, are those who look like this -> Green Alien | [Alien]

Programm3r
My Blog: ^_^

Playing with Enumerations

ezazazel22-Sep-09 0:45

ezazazel

22-Sep-09 0:45

Hi guys!

Maybe someone can help me with this:

I have a library C which controls a device and it's methods take enumerations as parameters.
Then I have a library B which references C and "wraps" the complex commands from library C in something useful and maintainable.
The last thing I have is an assembly A which does the UI stuff. It references ONLY library B.
Nevertheless B needs the values of the enumerations of C to control the device (and to fill comboboxes with the enum-Values)

I need a way to pass the information, which value of an enumeration is needed from A to B.
I do not want to reference C in A (that's how I would get the enumerations as well).

Which would be a good approach to solve this problem.

Help would really be appreciated!

Re: Playing with Enumerations

harold aptroot22-Sep-09 0:54

harold aptroot

22-Sep-09 0:54

You could just copy 'n paste the enum .. but that makes it harder to add/change values later (there are probably better solutions..)

Re: Playing with Enumerations

Gideon Engelberth22-Sep-09 2:51

Gideon Engelberth

22-Sep-09 2:51

Why not reference C in A? If B references C and A references B, then you have to distribute C with application A anyway. If you want A to have access to the values of the enumeration, referencing C is the 'right' and easiest way to go about it.

Re: Playing with Enumerations

ezazazel22-Sep-09 6:49

ezazazel

22-Sep-09 6:49

Thanks for your reply. I just hoped it would be possible to separate the C2 logic from the UI with the lib B as link.

Re: Playing with Enumerations

PIEBALDconsult22-Sep-09 4:07