Re: Dissable left click (Only on a trackBar) - C# Discussion Boards

2-Aug-09 23:19

Don't know if this will help

http://www.testingreflections.com/node/view/5635[^]

pallaka2-Aug-09 23:43

2-Aug-09 23:43

It is doing opposite to me...

i mean if i send "?"
it is giving output as "3F" I agree i really confused...3F is my Hex value and i need to convert to asci

I need fully opposite way.....
I need to send "3F" and i should get result as "?"

gwithey2-Aug-09 23:54

2-Aug-09 23:54

Ah i think this will work then. When i try it prints out the correct ascii number

label1.Text = Convert.ToInt32("3F", 16).ToString();

may not be the most efficient way.

pallaka2-Aug-09 23:58

2-Aug-09 23:58

It Prints the value 63.
But i need "?"
how can i convert 63 to symbol representation.

You can have a look in www.asciitable.com

gwithey3-Aug-09 0:10

Re: How to convert string to asci and asci to hex

3-Aug-09 0:10

I have just learnt something new to. This may work simple cast will convert the int (ascii) to a char / symbol.

int i = 63;
char c = (char)i;
label1.Text = c.ToString();

Luc Pattyn2-Aug-09 23:58

Luc Pattyn

2-Aug-09 23:58

Hi,

The solution will take some 10 lines of code including an explicit loop.

here are a few things you will need:
1. split the input string (which is a hex string) into parts, each holding 2 hex digits; you could use string.Split() or string.Substring()
2. convert a 2-digit hex string to its numeric value; you need int.Parse() or int.TryParse() with some options
3. convert that number to an ASCII character; you might try that with a (char) cast, the safer way would use an Encoding method.
4. concatenate all the results; either use a string operator or StringBuilder class.

If all this is too much for you, this is what you should have done: http://lmgtfy.com/?q=convert+hex+string+to+ASCII[^]

Smile | :)

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Dissable left click (Only on a trackBar)

gwithey2-Aug-09 23:02

Re: Dissable left click (Only on a trackBar)

2-Aug-09 23:02

I have created a windows form to represent a real life joystick, i have represented the x and y axis with click and drag. With a track bar to represent z axis. ( Activated with mouse wheel)

Currently the trackbar is enabled when the middle button is clicked and dissabled when clicked again. I am just looking for a way to dissable the left click on the trackbar control as left click on the form should represent the x and y axis with middle click then scroll representing z.

Thanx George

codemunkeh3-Aug-09 18:28

codemunkeh

3-Aug-09 18:28

Add an event for MouseDown or MouseUp...

You can check against the .Button property of the MouseEventArgs if it's the middle that was pressed.

Also:
You could use a MouseMove, and compare against the buttons there. So you could drag it around.

Ninja (the Nerd)

Confused? You will be...

Problem with ReadExisting in serial communication...i am sending data in hexa decimal but i am reciving it in asci.....

pallaka2-Aug-09 22:09

Re: Problem with ReadExisting in serial communication...i am sending data in hexa decimal but i am reciving it in asci.....

2-Aug-09 22:09

Problem with ReadExisting in serial communication...i am sending data in hexa decimal but i am reciving it in asci.....

How to get the proper data....how to convert data from asci to Hex.
as i need to display the data in the Text box in the Hex format.

stancrm2-Aug-09 22:18

stancrm

2-Aug-09 22:18

Encoding.ASCII.GetString(byte[] bytes)

or

Encoding.ASCII.GetBytes(string input)

Re: Problem with ReadExisting in serial communication...i am sending data in hexa decimal but i am reciving it in asci.....

pallaka2-Aug-09 22:47

Re: Problem with ReadExisting in serial communication...i am sending data in hexa decimal but i am reciving it in asci.....

2-Aug-09 22:47

I need to convert text to asci and asci to hex

OriginalGriff2-Aug-09 22:57

OriginalGriff

2-Aug-09 22:57

Try string.format("{0:X2}", asciByte); which converts asciByte to a two digit Hex string.

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Re: Problem with ReadExisting in serial communication...i am sending data in hexa decimal but i am reciving it in asci.....

pallaka2-Aug-09 23:11

Re: Problem with ReadExisting in serial communication...i am sending data in hexa decimal but i am reciving it in asci.....

2-Aug-09 23:11

No It didnt work.......

Lets take an example

string data "3F 50"
after conversion i should get "? P"

but i am not getting any thing

OriginalGriff2-Aug-09 23:22

OriginalGriff

2-Aug-09 23:22

Look at

Parse(str, System.Globalization.NumberStyles.HexNumber)

You will have to use it a few times and skip the spaces, but it will convert hex "3F" to byte '?'

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WPf questions about custom control

TGiril2-Aug-09 21:35

TGiril

2-Aug-09 21:35

Hi all
I made a custom control. I use it programatically in another project. the problem is I get change the label content(the text that appear)
any idea?

question 2:
I have a grid. I want only part of the grid to be scrolable.so that the first row and culomn are fixed. just like the header of a browser-is fixed and the rest of the page can be scrol. is it posible in the same grid?
I prefer to use 1 grid so the culomn size are the same

question3:
can any one direct me to a window 3 layer sample project, that is working by "best practise" ?

thanks

<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type local:MyCustomControl}" >
<Border Background="{TemplateBinding Background}" >
<Border.RenderTransform>
<TransformGroup>

<ScaleTransform/>

<TranslateTransform/>
</transformgroup>
<Border.RenderTransform>

<Label Name="lbl" >cool</label>

</border>

</controltemplate>
</setter.Value>

</setter>

Re: WPf questions about custom control

Abhijit Jana2-Aug-09 21:49

Abhijit Jana

2-Aug-09 21:49

I guess your question is not posted correctly. Please check this Chekbox "Do not interpret HTML tags (good for code snippets)" Before post the code.
And this is C# Forum. Please Post it on WPF Forum.

Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Don't forget to click "Good Answer" on the post(s) that helped you.
View My Latest Article

Creating a ContextMenu at runtime...

Thomas Kemper2-Aug-09 20:38

Thomas Kemper

2-Aug-09 20:38

I'm creating a static ContextMenu at runtime in program.cs, which works fine except that it has a slightly different visual style to ContextMenus created at design-time (doesn't highlight properly, menu items won't check, etc.) despite having all properties manually set to the default design-time specs.

Suggestions?

stancrm2-Aug-09 21:07

stancrm

2-Aug-09 21:07

it works fine for me. probably you are using the old context menu from vs2003 ?
or you can copy and paste your code here..

Thomas Kemper2-Aug-09 21:13

Thomas Kemper

2-Aug-09 21:13

I should've made that more clear - I'm creating a ContextMenuStrip, which replaces ContextMenu as far as I know. I create it as follows...

menu = new ContextMenuStrip();

ToolStripItem[] items = { ... }; // Pre-initialised ToolStripItems
menu.Items.AddRange(items);
menu.RenderMode = ToolStripRenderMode.Professional;

I've also tried messing around with other properties like the margins and so forth, but it's still different from the design-time result.

Alan N3-Aug-09 2:19

Alan N

3-Aug-09 2:19

Hi,
All controls are created at run time and the designer just writes the code for you. If you can can create the desired appearance with the designer then do that and look in the *.designer.cs file to see how it was done.

Alan.