StrataFrame Forum » StrataFrame Application Framework - V1 » WinForms (How do I?) » Iterate through a Buismess Object

Iterate through a Buismess Object

Ger Cannoll — Wed, 28 Jul 2010 09:33:19 GMT

I am trying to set up a piece of code just to loop through a BO. Took the code below from training class manual but cant get intellisense on BoType

[codesnippet]foreach (BoType bo in myBo,GetEnumerable() )
{ MessageBox.Show(.....); }[/codesnippet]

RE: Iterate through a Buismess Object

Edhy Rijo — Wed, 28 Jul 2010 09:33:19 GMT

Hi Gerard,

Glad it is working for you. :P

I've been there many times when the .GetEnumerable() was introduced by Trent 2 years ago and I was fairly new to all .Net, but now I use this all over, it is easy, fast and reliable since it will not affect the actual CurrentRowIndex of the BO instance in the form.

RE: Iterate through a Buismess Object

Ger Cannoll — Wed, 28 Jul 2010 02:57:20 GMT

Hi Edhy. Thanks for that. I did not see that is was the Business Object as opposed to the instantiated Business Object that goes with the Foreach. Its compiling now.

regards, Gerard

RE: Iterate through a Buismess Object

Edhy Rijo — Tue, 27 Jul 2010 17:12:27 GMT

Hi Gerard,

It should be:

[codesnippet]foreach ([b]ideBO[/b] boRow in this.ideBO1.GetEnumerable())
{ MessageBox.Show(ideBO1.IDE_STKREF); }[/codesnippet]

RE: Iterate through a Buismess Object

Ger Cannoll — Tue, 27 Jul 2010 16:02:20 GMT

Edhy and greg..many thanks for your replies.

I am getting a ...ideBo1 is a field but is used as a type compile error message. ideBo1 is an instance of the BO on the form and is fine in all other processing. Must be something very simple but I cant see it ??

[codesnippet]foreach (ideBO1 boRow in this.ideBO1.GetEnumerable())
{ MessageBox.Show(ideBO1.IDE_STKREF); }[/codesnippet]

RE: Iterate through a Buismess Object

Greg McGuffey — Tue, 27 Jul 2010 14:02:54 GMT

Edhy right on the money, as usual. ;)

Here is the C# code you might use.

Sample #1: Looping through a BO dropped on a form. Assume you have a BO you've built called MySpecialBO. You've dropped an instance on a form and the instance is named MySpecialBO1.
[codesnippet]foreach(MySpecialBO boRow in this.MySpecialBO1.GetEnumerable())
{
  //-- Do something with boRow. Each loop will move it to next row in data table,
  //   only you can use the strongly typed properties to access data.
}[/codesnippet]

Sample #2: Looping through the BO within the BO itself. We'll use MySpecialBO again, but this time we're doing this inside an instance method.
[codesnippet]foreach(MySpecialBO boRow in this.GetEnumerable())
{
  //-- Do something with boRow. Each loop will move it to next row in data table,
  //   only you can use the strongly typed properties to access data.
}[/codesnippet]

RE: Iterate through a Buismess Object

Edhy Rijo — Tue, 27 Jul 2010 12:58:14 GMT

Hi Gerald,

This is something I use a lot :) Here is the vb version:
[codesnippet]
For Each [b]record [/b]As bizTransactionItems In [b]Me.BizTransactionItems1[/b].GetEnumerable()
record.QBInvoiceRefID = .RefId
record.QBInvoiceNumber = .RefNumber
Next record
[/codesnippet]

Where "record" is the object based on the main class of the business object, not the instance in the form. and Me.BizTransactionItems1 is the instance class in the form. Whatever you do with "record" it is actually happening in Me.BizTransactionItems1 real time, except that GetEnumerable() will keep the record pointer "CurrentRowIndex" updated for you, so don't need to worry about it. :w00t:

Enjoy!!!!