ddanbe

In the book "Desingning Embedded Systems with PIC(R) Microcontrollers" there is a complete discription of a robot called Derbot AGV. A google <ould help you further. Success!

To sort descending you could first use Array.Sort and then Array.Reverse method [Click Here](http://msdn.microsoft.com/en-us/library/d3877932.aspx)

[THE RULES!](http://www.daniweb.com/community/rules)

A library is a collection of "blackbox" functions with some "common" functionality. Consider the Math library [Click Here](http://www.cplusplus.com/reference/cmath/) You just include this lib in your code and you are now ready to use any of its functions in your code. An alternative is to write any of the math functions …

Perhaps [try this?](http://msdn.microsoft.com/en-us/vstudio/bb688088.aspx)

Instead of **%f** use something like **%3.2f** This means you can print 3 digits and two digits after the decimal point.

What about: If e.KeyChar = "A" then 'here i don't know how to call button1_click procedure 'do not call button click TextBox1.Text = "65"; e.Handled = true; End If

Raise the number **-1** to a power, say **n** what will the outcome be when **n** is even? What if **n** is uneven? This tip should help.

[Here](http://www.instructables.com/id/Build-Your-Own-555-Timer/) are the instructions of building a fairly simple (but famous!) 555 timer IC. It was e.g. used in the first Apple computers. It has some 20 transistors in it. I would not even think about buildding it up from transistors, just give me the chip.

Did you try the [TopLevel property](http://msdn.microsoft.com/en-us/library/system.windows.forms.form.toplevel.aspx)?

You could use the CurrentCellAdress property. [Click Here](http://msdn.microsoft.com/en-us/library/system.windows.forms.datagridview.currentcelladdress.aspx)

[Click Here](http://csharp-source.net/)

I still should reconsider the tip of tinstaafl. TreeView is not so hard to learn as you think [Click Here](http://www.youtube.com/watch?v=aGEdb-4mH5E)

Yes you can create controls at runtime using an array. To display a control dialog [Click Here](http://msdn.microsoft.com/en-us/library/system.windows.forms.colordialog.anycolor.aspx?cs-save-lang=1&cs-lang=vb#code-snippet-2) to start.

I guess the orbit of your planet starts with a parabola, to become an ellipse, just calculate the tangent line on the point where your planet actually is. Or if you know the tangent, calculate a parabola between the actual point and the point where the planet will come in …

Hi adil.ghori welcome at DaniWeb! Can you work with Visual C++ and did you already wrote a "Hello world" program in it?

Consider a carthesian coordinate system. By the way, invented by René Descartes in the 17th century, when in his bed and watching a fly walking on his ceiling! Consider you are on the x-axis at coordinate x=0 and on the y-axis at coordinate y=0. It is called the origin.(x,y)=(0,0). To …

_horizontalIter is defined as zero and I see no change in it? so e.g. on line 42 the multiplication stays zero. I that the intention? What is crudObj?

Let the operating system be busy to find out what an EOF is. Just concentrate on your file format. The reason I could think of why some file formats start with size info is to calculate in some way how many "records" are in the file. But the OS file …

How big are your rows and what code do you use to save to the DB?

Homework? What have you tried?

Maybe [Click Here](http://blaauw.eecs.umich.edu/getFile.php?id=125&sid=nnxdqhqhnoszrgfg)?

I hope these are just example ingredients for a salad. Water in a salad? :-) Another note: The offial symbol for milliliters is not **mil** but **ml** The offial symbol for grams is not **gm** but **g**

I don't think that is possible, you can only change their properties. They are not functional during design.

To help you on the way: If a number is not even it is odd. If a number is not prime it is composite.

Perhaps have a look [here](http://vb.net-informations.com/excel-2007/vb.net_excel_2007_open_file.htm)

Is your problem about two's complement arithmetic?

I have this book *Programming F# (Animal Guide) by Chris Smith (20 Oct 2009)* and found F# functional programming very interesting indeed! Being retired, I have so many things to do (strange enough) that I did not find the time yet to dig in completely. VS 2010 has all the …

Try to read a beginners book on C. Or read "The C programming language" by Kernigan and Ritchie.

> C# does not provide this feature by default. I think C# does not have it [Click Here](C# does not provide this feature by default.) for a possible solution. The links provided by tinstaafl should also be helpfull. Success!

Because a Using block automatically disposes of any resources used in it. So if you stil want to use your form, don't put it in a using block. See MSDN for more details.

Simply said, a Handle is a pointer to a pointer.

Yes, [Click Here](http://csharp.net-informations.com/) Look for C# Excel tutorial. Success.

Many situations arise when you have to choose between two options: true/false, male/female etc. This short snippet will only allow two chars to pass through: capital 'Y' or capital 'N'. The Read and ReadLine methods can serve also, but have the side effect you have to use Upper and Lower …

alaba81, welcome! OK. What have you designed already? Our assignment is not giving solutions, but providing answers to problems you encounter.

I'm certainly not the most sagacious or intelligent guy, but this beats it all. This "problem" question surely must win a price over here! I will abstain from further comments, I might get banned...

You could use `CellCount = Dgv1.RowCount * Dgv1.ColumnCount;` to get the result yoy want.

Have you tired something yet for yourself?

@mr.unknown: your code will never produce the output you gave. Remove the **endl** on line 13 an place it elsewhere.

Use the [TryParse method](http://msdn.microsoft.com/en-us/library/f02979c7.aspx?cs-save-lang=1&cs-lang=csharp#code-snippet-2) when converting text to an integer.

Overload the step2 constructor and use **public step2(List<string> mylist):this()** The special this syntax will invoke your normal constructor. In the body of this second constructor you can do with **mylist** what you want.

VB.NET? C#? C++?

Hi, welcome at DaniWeb! Could you please state WHICH problem? I have a problem with my car . . . now try to solve it, I guess you would find it impossible. I have the same with your question. :)

homework?

Welcome mesbahuk! I should change StringBuffer into [StringBuilder](http://msdn.microsoft.com/en-us/library/system.text.stringbuilder.aspx) AS you can derive your own exceptions from the Exception class, look [here](http://msdn.microsoft.com/en-us/library/ms173160(v=vs.100).aspx) for a start in C#. Success!

To test for equality use the **==** operator **=** is the assignment operator.

Start with downloading [this](http://www.microsoft.com/visualstudio/eng/downloads#d-2010-express) Then start to read [here](http://www.c-sharpcorner.com/Beginners/) Success!

Hi EDWARDO 92, welcome to DaniWeb! Compilers take care of converting your program code into binary, so a computer can work. To learn a bit more [Click Here](http://l3d.cs.colorado.edu/courses/CSCI1200-96/binary.html)

Do you think, that when later having some job in IT business it will always be *easy*?

Did you add the PictureBox to the controlscollection of the Form?