C# a Step by Step Beginners Tutorial

[bfusr]

Thanks for your quick answer. Q1: It should look like this:



and I simply don't know how to get checked Items from Form, to MenuTree.cs. I could save them to file and load, but it's not the best way I guess.

[Escapee]

I simply don't know how to get checked Items from Form, to MenuTree.cs.

In your specific example, as your check boxes sit directly on your form you could create a few public bool variable in the menuTree.cs, such as bEnglishSoccer and then set them in the check_changed event.

chkEnglishSoccer_checkChanged()
{
    if( chkEnglishSoccer.checked == true )
    {
        c_MenuTree.bEnglishSoccer = true;
    }
    else
    {
        c_MenuTree.bEnglishSoccer = false;
    }

    c_menuTree.Initialise()
}

and in the initialise() you can see what is checked and what isn't.


Ok, so that's a kludge that might work for your example, but when you've got a control sitting 5 levels deep and it's got to communicate with another control 7 layers down and niether of them know much about each other then that's where OO design fails imho.
Maybe I'm missing something, but I've never really found what I would consider a natural and elegant inter-object communication method when there is no hierarchical object connection.

I usually use delegate redirection or event messaging but it doesn't seem quite right to me.

Edit
P.S. this onChkChanged is simplified for clarity, be aware, some of these events fire twice for each click

[tmos1985]

This is a great tutorial. Very helpful. I just want to display soccer fixtures and odds. I want to do all the calculations for the returns myself. I will just be doing football matches. I am trying to code a betting simulator. All of my information will be stored on my own database.

[AnsarSA]

Hi, are the entire solution files available by any chance? Where could I get them? Thanks.

[paypascal]

I've copied your source code quickly, but the odds aren't functioning right. Do you know what might be causing this?

I would have simply divided by 10 but the numbers change like this:
Essence Of Bubbles
30 305 31
Which really is:
3.0 3.05 3.1

CMarketData.RDATA[r].BackPrice[0].dOdds

[paypascal]

If anyone else has the same issue.
Change this UpdateMarketPricesCompressed() in CMarketData:

RDATA[ind].BackPrice[i].dOdds = BackPricesArr[iTmp].Length > 0 ? Convert.ToDouble(BackPricesArr[iTmp]) : 0;
RDATA[ind].BackPrice[i].dAmount = BackPricesArr[(iTmp + 1)].Length > 0 ? Convert.ToDouble(BackPricesArr[(iTmp + 1)]) : 0;

To:

if (BackPricesArr[iTmp].Length > 0) RDATA[ind].BackPrice[i].dOdds = Convert.ToDouble(BackPricesArr[iTmp].ToString().Replace(".", ","));
if (BackPricesArr[(iTmp + 1)].Length > 0) RDATA[ind].BackPrice[i].dAmount = Convert.ToDouble(BackPricesArr[(iTmp + 1)].ToString().Replace(".", ","));

And the same for laying.

[denvb]

If anyone else has the same issue.

This is a known issue. Simple use this method

Convert.ToDouble(data, System.Globalization.CultureInfo.InvariantCulture)

[Escapee]

[Letrix]

MenuTree doesn't appear in my Toolbox

Hello.

Thank you so much for this very useful and detailed tutorial.

But I don't have experience in writing programs with windowsforms, buttons etc. and so do maybe stupid mistakes.

After 25th step MenuTree control doesn't appear in my Toolbox as well as BetfairControls Components and BetfairAPI Components groups of controls.
And it doesn't appear independently on weather I change from what class MenuTree inherits or not.

Does someone encountered such a problem?

I am using VS2010 professional.

[Letrix]

Solved

Finally I solved the problem.
Right click on Toolbox->Choose items...->browse file BetfairControls.dll

[chewie22]

An old thread but I've just gone through the sample for the first time and as you spent the time to create it, I felt obliged to spend the time to thank you for your effort.

Thanks very much for the generous donation of your time and expertise.

[CaptnCanary]

This is a known issue. Simple use this method

Convert.ToDouble(data, System.Globalization.CultureInfo.InvariantCulture)

I am completely new to coding but have worked through the tutorial and managed to get it working. Unfortunately, the odds on my GUI are not showing up the same as on the Betfair website. I don't think the problem is quite the same as the one paypascal mentioned but could have a similar solution? I note the suggested code above but do not know where to put this to try it out.
Here is a screenshot of my GUI and Betfair taken at the same time on a Greyhound market. As you can see, most of it is right but the odds and amount available are not.



Any help would be much appreciated. Please tell me exactly where to put any suggested code. I will be working on more tutorials to learn C# to help me develop this program further and learn to automate placing bets.

[clerk]

Maybe website Betfair just opened, and the entrance to your account is not complete?

[betdynamics]

What have you got your RollupStake value set to?

[CaptnCanary]

What have you got your RollupStake value set to?

Hi. Where can I find RollupStake? I searched through the cs files but cannot see it anywhere. But anyhow, I have not changed anything in the tutorial code so everything should be completely as designed by the OP. Since posting my question I noticed some other behaviour too. When watching in-play football(soccer) odds, the tutorial GUI matches the Betfair market well, but when there is a goal, and the market is suspended then reopened, the odds in the GUI jump around all over the place for a while, whereas the odds on Betfair are stable in comparison.

Here is another example of the problem on the greyhounds markets but this time over an hour before the race while the odds are not moving at all, in the GUI or on Betfair website.