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Thkx for the suggestions, I am indeed wading my way thru a recently purchased 1500-page C# book - while trying to keep up with teaching, examining and marking 200 kids learning Delphi. We have been teaching Delphi at school for some time now (some schools teach Java) and forsee it making way for C#. Questions asked in exams are set so you can answer them in either Delphi or Java. I have set a typical problem - a button to add an object to an ArrayList (Delphi would use a dynamic array, I don't know how Java would handle it), and a button to display the array. Typically, a question would also have buttons to sort and to locate/delete/insert an object. The form design will be given, sometimes even the data. Learners must then make the buttons work.
I know global variables defeat the aims of OOP, but I was trying to define the ArrayList as such. So, to some extent, it's not about elegant solutions at this level but rather just getting to grips with the basics.
Hannes
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I am using the ListView.SelectedIndexChanged to update data, when a new item has been selected.
My problem is, that the event will be fired for each new selected (de-selected) item (if multiSelect is true; more than twice). [And i don't want to get the data from the database each time.]
Is there an event that will be raised if the control has finished handling these processes (or processes for this control at all)?
Or does anyone have another idea to solve thsi problem
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C-Scharbe wrote: Is there an event that will be raised if the control has finished ...
No.
The Control can not guess when you have finished selecting and de-selecting, so the only
thing it can do is fire every time. Either apply code that can stand this, or add some
way for the user to confirm the selection process is done, e.g. a button.
Luc Pattyn [Forum Guidelines] [My Articles]
This month's tips:
- before you ask a question here, search CodeProject, then Google;
- the quality and detail of your question reflects on the effectiveness of the help you are likely to get;
- use PRE tags to preserve formatting when showing multi-line code snippets.
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It's too complicate...
... for the user to click an extra button
I missing something like LastSelectedIndexChanged or AfterSelectedIndexChanged.
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It's too complicate...
... for the computer to read the user's mind 
Luc Pattyn [Forum Guidelines] [My Articles]
This month's tips:
- before you ask a question here, search CodeProject, then Google;
- the quality and detail of your question reflects on the effectiveness of the help you are likely to get;
- use PRE tags to preserve formatting when showing multi-line code snippets.
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Perhaps he could use classes from the DWIM namespace...
Regards,
mav
--
Black holes are the places where God divided by 0...
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Unfortunately a lot of methods in System.DWIM throw a NotImplementedException. 
Luc Pattyn [Forum Guidelines] [My Articles]
This month's tips:
- before you ask a question here, search CodeProject, then Google;
- the quality and detail of your question reflects on the effectiveness of the help you are likely to get;
- use PRE tags to preserve formatting when showing multi-line code snippets.
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So there is minimum a
throw new Exception("The method or operation is not implemented.");
implemented !!
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What is DWIM?
Tell me more
Or send me a link....
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Here's[^] the documentation for the namespace...
Regards,
mav
--
Black holes are the places where God divided by 0...
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Does anyone have an idea, to solve this problem??
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Hello
I'm trying to bind a list to a combobow but without effective result
class Rue<br />
{<br />
public int Id;<br />
public string Nom;<br />
};<br />
<br />
List<Rue> Rues = new List<Rue>();
Then I'm trying to fill and bind that list to a Combo
<br />
Rues.Clear();<br />
readRues("1000",Rues);<br />
cmb_rues.DataSource = Rues;<br />
cmb_rues.DisplayMember = Rues[0].Nom;
The Combo displays things but not what I expect
It shows
App.Form+Rue
App.Form+Rue
App.Form+Rue
etc..
Thanks for any help !
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I think you need to write:
cmb_rues.DataSource = Rues;<br />
cmb_rues.DisplayMember = "Nom";<br />
cmb_rues.ValueMember = "Id";
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Hello
I've try it too !!
Same result BUT
If I declare the ValueMember I got a message cannot bind to the new displaymember
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Try this:
class Rue<br />
{<br />
public int Id;<br />
public string Nom;<br />
<br />
public override string ToString()<br />
{<br />
return Nom;<br />
}<br />
};
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Thank you
It works indeed !
But I really do not understand why and how ?
I'm old to C but new to csharp and oop
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The combobox run ToString() for each item.
If you have a class, that does not override the ToString() method, it returns the name of the class- type.
I guess you don't need to run cmb_rues.DisplayMember = ... ??
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I understand better now
Thank you !
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Create properties for your members and let the display member be a property. It should work.
Let me know if it doesn't.
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Can anybody help me in this? thank you in advance.
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Hi,
this is a two-step process:
1. select the text that needs special handling; you can do that interactively, or programmatically; while it already is in place, or while adding.
2. choose a new font for the selected text (RichTextBox.SelectionFont Property) and use
FontStyle.Underline for it.
For all the details, read up on the RichTextBox and Font classes.
Luc Pattyn [Forum Guidelines] [My Articles]
This month's tips:
- before you ask a question here, search CodeProject, then Google;
- the quality and detail of your question reflects on the effectiveness of the help you are likely to get;
- use PRE tags to preserve formatting when showing multi-line code snippets.
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Thanks.
Well there's a problem. What if my selection includes multiple fonts? RichTextBox.SelectionFont Property returns null in that case. How can I underline my selection without changing the original fonts?
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Hi,
if multiple styles are selected, the selection has to be split up into homogeneous
parts; select and underline each part in turn; then restore the original selection.
Luc Pattyn [Forum Guidelines] [My Articles]
This month's tips:
- before you ask a question here, search CodeProject, then Google;
- the quality and detail of your question reflects on the effectiveness of the help you are likely to get;
- use PRE tags to preserve formatting when showing multi-line code snippets.
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Thank you. 
Your suggestion worked. I splitted my multi-font-selection into several homogeneous parts, selected each part and underlined them one after another. Finally I restored the original selection.
However, as I try out the program, it flickers.
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